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Current Conditions

A message from COD Meteorology

Current Local Radar

Temperature
72°F
Feels Like:
72°F
Dew Point	Humidity
56°F	57%

A Few Clouds

Wind Strength
Light	Moderate	Strong
South at 3 mph

Local Graphical Forecast (Updated: 06/25/22 2:15 am)

Saturday (6/25)
Day	Night

40%	70%
High	Low
89	69

Sunday (6/26)
Day	Night


High	Low
78	60

Monday (6/27)
Day	Night


High	Low
77	59

Tuesday (6/28)
Day	Night


High	Low
84	66

Wednesday (6/29)
Day	Night


High	Low
87	68

Thursday (6/30)
Day	Night


High	Low
91	71

Friday (7/1)
Day	Night


High	Low
84

Detailed Text Forecast (Updated: 06/25/22 2:15 am)

Saturday Night: Partly cloudy, with a low around 70. South southeast wind around 5 mph.

Saturday: A chance of showers, with thunderstorms also possible after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 89. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

Saturday Night: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy during the early evening, then becoming cloudy, with a low around 69. South southwest wind 5 to 15 mph becoming west northwest after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Sunday: Mostly sunny, with a high near 78. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday Night: Mostly clear, with a low around 60. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.

Monday: Sunny, with a high near 77.

Monday Night: Mostly clear, with a low around 59.

Tuesday: Sunny, with a high near 84.

Tuesday Night: Mostly clear, with a low around 66.

Wednesday: Sunny, with a high near 87.

Wednesday Night: Mostly clear, with a low around 68.

Thursday: Sunny, with a high near 91.

Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 84.

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SPC Convective Outlook Day 1

See Product Description

188
ACUS01 KWNS 250554
SWODY1
SPC AC 250552

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1252 AM CDT Sat Jun 25 2022

Valid 251200Z - 261200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM THE
ILLINOIS VICINITY WEST-SOUTHWESTWARD TO THE TEXAS AND OKLAHOMA
PANHANDLE VICINITY...

...SUMMARY...
Isolated severe thunderstorms are possible from parts of the middle
Mississippi Valley into the Texas and Oklahoma Panhandle vicinity
this afternoon and evening, with a few posing at least some risk for
severe gusts and large hail.

...Synopsis...
An upper trough over the Canadian Prairie and adjacent northern
Plains states will continue moving slowly eastward today, reaching
the Upper Mississippi Valley/western Upper Great Lakes region
overnight. Meanwhile, broad ridging will prevail over the entire
southern half of the country through the period.

At the surface, a cold front associated with the aforementioned
upper trough will continue moving southeastward across the central
third of the U.S. with time. By afternoon, the front should extend
from the Upper Mississippi Valley to western portions of the
southern Plains, and from Lower Michigan to Texas by the end of the
period.

...Illinois vicinity west-southwestward to the Texas/Oklahoma
Panhandle area...
As a cold front shifts southeastward across central portions of the
country, heating/destabilization is forecast to occur in the
vicinity of the frontal zone, where a moist boundary layer will
reside. As ongoing convection over the Upper Mississippi
Valley/Upper Great Lakes region lingers through the day, new storm
development is expected along the front, from the northern Illinois
vicinity west-southwestward to the Texas/Oklahoma Panhandle region.
Much of this convection may be to the cool side of the front,
especially from the lower Missouri Valley area westward. Still,
with moderate mid-level westerlies near and just north of the front,
a few stronger storms may evolve locally -- capable of producing
hail and locally damaging wind gusts, mainly during the late
afternoon and evening hours.

..Goss.. 06/25/2022

$$

The "Convective Outlooks" issued by SPC can be thought of as a detailed discussion of the Severe Thunderstorm threat and it's associated risks nationwide. Risk levels range from Marginal to Slight, Enhanced, Moderate, and High and are issued based on the likelihood of 3 major severe weather threats; the risk of tornadoes, damaging winds, and hail. These discussions are often heavily laced meteorological terminology that may be difficult to understand without a background in the field. However understanding these discussions shouldn't be thought of as necessary. Instead, should DuPage county fall under one of these threat levels for severe weather, the response should be to have a heightened level of awareness about the deveoloping weather. Keep an eye on the "Watch County Notification" for any active severe weather watches issued for DuPage county; the "Hazardous Weather Outlook" and "Severe Weather Statement" can also be helpful in explaining the developing risk; additionally, watch for "Active Weather Warnings" and keep an eye on our "Regional Satellite and Radar" products which can be viewed with active watches/warnings or lightning activity.

Hazardous Weather Outlook

See Product Description

099
FLUS43 KLOT 241930
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
230 PM CDT Fri Jun 24 2022

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-251930-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
230 PM CDT Fri Jun 24 2022 /330 PM EDT Fri Jun 24 2022/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
Limited Thunderstorm Risk primarily west of Interstate 39.
Saturday Night into early Sunday morning...
Limited Severe Thunderstorm Risk.
Thursday...
Limited Thunderstorm Risk.

DISCUSSION:

Showers and embedded thunderstorms will move across northwestern
Illinois Saturday morning. Severe weather is not expected with
this activity. Additional thunderstorm development is possible
late Saturday afternoon and into the evening. A few storms could
be strong to severe during the evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

$$

LMZ740>745-251930-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
230 PM CDT Fri Jun 24 2022

This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday and early Sunday morning...
Limited Thunderstorm Risk.
Thursday...
Limited Thunderstorm Risk.

$$

Borchardt

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The "Hazardous Weather Outlook" contains information regarding any and all weather expected to occur within the region that could be hazardous to travel, life or property. This is one of our most highly recommended products to check on a daily basis, and it some cases multiple times per day should significant weather be expected to affect DuPage county.

SPC Convective Outlook Day 2

See Product Description

514
ACUS02 KWNS 250439
SWODY2
SPC AC 250438

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1138 PM CDT Fri Jun 24 2022

Valid 261200Z - 271200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS SUNDAY AFTERNOON
AND EVENING ACROSS MUCH OF CENTRAL AND EASTERN OHIO...ADJACENT
NORTHERN KENTUCKY...WESTERN WEST VIRGINIA...WESTERN PENNSYLVANIA AND
PARTS OF WESTERN NEW YORK (STATE)...

...SUMMARY...
Strong thunderstorms may impact parts of the middle and upper Ohio
Valley into the lower Great Lakes region late Sunday afternoon and
evening, posing at least some risk for potentially damaging wind
gusts.

...Synopsis...
Blocking appears likely to persist within the westerlies across the
northeastern Pacific and adjacent portions of northwestern North
America, with a mid/upper high only slowly shifting north of the
Gulf of Alaska into the southern Alaska/Yukon border vicinity during
this period. Models do indicate that the prominent low to the
south, initially centered roughly near 40N/145W, may slowly begin
accelerating east-northeastward toward the Pacific Northwest coast,
but the leading edge of stronger mid-level height falls is forecast
to remain to the west of coastal areas through 12Z Monday.

Within the northern branch of split downstream flow, models indicate
that at least a couple of more prominent short wave perturbations
will continue to progress through northwesterly to westerly flow
across the Canadian Prairies through the eastern Canadian/U.S.
border vicinity. This includes a lead wave forecast to advance
across Ontario into Quebec, and adjacent portions of the Great Lakes
region. While mid/upper ridging may persist across much of the
central and southern tier of the U.S. to the east of the Rockies, a
substantive intrusion of cooler and drier air appears likely to
spread east of the lower Great Lakes, south of the Ohio River, and
through the middle Mississippi Valley and much of the southern Great
Plains by late Sunday night.

...Southern Great Plains into lower Great Lakes region...
Seasonably moist air, coupled with daytime heating, may contribute
to moderately large CAPE (1500-3000 J/kg) in a narrow pre-cold
frontal corridor by Sunday afternoon. Much of this may be focused
within weak flow beneath the remnant mid-level ridging. However,
beneath a difluent regime near the southern periphery of the
progressive short wave trough, westerly flow may strengthen to 20-30
kt in the 700-500 mb layer, as far south as portions of the
mid/upper Ohio Valley. Given the seasonably high boundary-layer
moisture content (including surface dew points forecast around 70F)
and CAPE, this may be marginally sufficient to contribute to
scattered small organizing thunderstorm clusters, which may become
capable of producing potentially damaging wind gusts aided by heavy
precipitation loading, before weakening Sunday evening.

..Kerr.. 06/25/2022

$$

The "Convective Outlooks" issued by SPC can be thought of as a detailed discussion of the Severe Thunderstorm threat and it's associated risks nationwide. Risk levels range from Marginal to Slight, Enhanced, Moderate, and High and are issued based on the likelihood of 3 major severe weather threats; the risk of tornadoes, damaging winds, and hail. These discussions are often heavily laced meteorological terminology that may be difficult to understand without a background in the field. However understanding these discussions shouldn't be thought of as necessary. Instead, should DuPage county fall under one of these threat levels for severe weather, the response should be to have a heightened level of awareness about the deveoloping weather. Keep an eye on the "Watch County Notification" for any active severe weather watches issued for DuPage county; the "Hazardous Weather Outlook" and "Severe Weather Statement" can also be helpful in explaining the developing risk; additionally, watch for "Active Weather Warnings" and keep an eye on our "Regional Satellite and Radar" products which can be viewed with active watches/warnings or lightning activity.

SPC Convective Outlook Day 3

See Product Description

217
ACUS03 KWNS 250648
SWODY3
SPC AC 250647

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0147 AM CDT Sat Jun 25 2022

Valid 271200Z - 281200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
The risk for severe thunderstorms appears negligible across the U.S.
Monday through Monday night.

...Synopsis...
Large-scale flow will remain split across the northeastern Pacific
and northwestern North America vicinity, but the mid-level high
initially centered near the southern Alaska/Yukon border may weaken
during this period. Models suggest that the lingering low to its
south may remain fairly vigorous while continuing to gradually
accelerate toward the Pacific Northwest coast, but it appears that
the mid-level cold core will remain offshore through early Tuesday.

Downstream, it appears that the westerlies will converge into a
northwesterly regime from the lee of the Canadian Rockies into broad
mid-level troughing across much of eastern Canada and the upper U.S.
Mississippi Valley through the middle and northern Atlantic
Seaboard. The leading edge of accompanying lower/mid tropospheric
cooling and drying is forecast to advance across the northern and
middle Atlantic Seaboard, while stalling across the Gulf Coast
states.

Along and south of the front, seasonably moist boundary-layer air
and daytime heating may once again contribute to a corridor of
moderately large CAPE, across portions of eastern Texas, Louisiana
and Mississippi into the southern Appalachians by Monday afternoon.
However, this will be focused within weak flow and shear to the
south of the westerlies.

The potential for heavy precipitation loading may contribute to some
risk for downbursts in scattered convection across the Southeast
Monday afternoon and evening, while deep boundary layer mixing also
contributes to a risk for downbursts in scattered thunderstorms
across parts of the Southwest and northern intermountain region.
Overall, though, this is generally expected to remain rather sparse
in coverage, with probabilities for severe gusts still appearing
less than 5 percent.

..Kerr.. 06/25/2022

$$

The "Convective Outlooks" issued by SPC can be thought of as a detailed discussion of the Severe Thunderstorm threat and it's associated risks nationwide. Risk levels range from Marginal to Slight, Enhanced, Moderate, and High and are issued based on the likelihood of 3 major severe weather threats; the risk of tornadoes, damaging winds, and hail. These discussions are often heavily laced meteorological terminology that may be difficult to understand without a background in the field. However understanding these discussions shouldn't be thought of as necessary. Instead, should DuPage county fall under one of these threat levels for severe weather, the response should be to have a heightened level of awareness about the deveoloping weather. Keep an eye on the "Watch County Notification" for any active severe weather watches issued for DuPage county; the "Hazardous Weather Outlook" and "Severe Weather Statement" can also be helpful in explaining the developing risk; additionally, watch for "Active Weather Warnings" and keep an eye on our "Regional Satellite and Radar" products which can be viewed with active watches/warnings or lightning activity.