Essentials:

Regional Satellite and Radar...

-with Watches and Warnings
-with Lightning Detection

Helpful Information:

Weather Safety:

Current Conditions

A message from COD Meteorology

Current Local Radar

Temperature
26°F
Feels Like:
20°F
Dew Point	Humidity
2°F	35%

Overcast

Wind Strength
Light	Moderate	Strong
West at 5 mph

Local Graphical Forecast (Updated: 01/03/26 1:46 pm)

Saturday (1/3)
Day	Night


High	Low
28	17

Sunday (1/4)
Day	Night


High	Low
31	28

Monday (1/5)
Day	Night


High	Low
42	34

Tuesday (1/6)
Day	Night


High	Low
47	33

Wednesday (1/7)
Day	Night


High	Low
46	36

Thursday (1/8)
Day	Night

30%	30%
High	Low
50	38

Friday (1/9)
Day	Night

30%
High	Low
48

Detailed Text Forecast (Updated: 01/03/26 1:46 pm)

Saturday: Mostly cloudy, with a high near 28. West northwest wind around 5 mph.

Saturday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 17. Northwest wind around 5 mph.

Sunday: Increasing clouds, with a high near 31. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 15 mph.

Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 28. South wind around 10 mph, with gusts as high as 20 mph.

Monday: Partly sunny, with a high near 42. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Monday Night: Mostly cloudy, with a low around 34.

Tuesday: Partly sunny, with a high near 47.

Tuesday Night: Mostly cloudy, with a low around 33.

Wednesday: Mostly sunny, with a high near 46.

Wednesday Night: Partly cloudy, with a low around 36.

Thursday: A chance of rain. Mostly cloudy, with a high near 50.

Thursday Night: A chance of rain. Mostly cloudy, with a low around 38.

Friday: A chance of rain. Mostly cloudy, with a high near 48.

Campus Weather®:
Provided by College of DuPage
Built and Maintained by: COD Meteorology "NEXLAB"
Copyright © 2026

Contact COD Meteorology "NEXLAB":
Phone: 630-942-2590
Web: Contact Form

Contact College of Dupage:
Phone: 630-942-2800

College of DuPage:
Meteorology at COD
Earth Science at COD
COD AMS Student Weather Club
Programs of Study at COD
COD Admissions

Downers Grove North High School:
Home Page

SPC Convective Outlook Day 1

See Product Description

906
ACUS01 KWNS 031954
SWODY1
SPC AC 031952

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0152 PM CST Sat Jan 03 2026

Valid 032000Z - 041200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF
THE NORTHERN GULF COAST AND NORTHERN CALIFORNIA INTO SOUTHERN
OREGON....

...SUMMARY...
Isolated severe storms are possible across parts of the Southeast
today. A few severe storms will also be possible from the Sacramento
and northern San Joaquin Valleys to coastal areas of northern
California and southwest Oregon.

...20z Update Southeast...
Overall, only minor changes were made to the prior outlook. Severe
and thunder probabilities were cleared west of a cluster of
thunderstorms ongoing along the northern Gulf Coast from southern
AL/GA into northern FL. Located ahead of a weak cold front, the
environment east of these storms is expected gradually become more
stable owing to remnant cloud cover/precipitation. Still, 500-1000
J/kg of MLCAPE and ~40 kt of deep-layer shear will remain sufficient
for occasional stronger/organized updrafts. Isolated hail, damaging
gusts or a brief tornado are possible, especially with any more
persistent supercell structures able to develop over southern GA and
the FL Panhandle.

...CA...
Several stronger convective elements remain near the coast or just
onshore beneath a strengthening shortwave trough over northern CA
and southern OR. Cool mid-level temperatures (-25C) and strong
frontal forcing will continue to support low-topped storms through
this afternoon. Large-low-level hodographs and strong southwesterly
flow aloft will support an isolated risk for damaging gusts, and
perhaps a brief tornado with any rotating miniature supercell or
QLCS structures moving onshore. Storms should weaken as the cold
front and upper trough move onshore completely this evening.

Farther south, strong ascent, from the aforementioned trough, and
modest surface heating are supporting weak destabilization over the
northern San Joaquin Valley. Favorable low-level hodograph curvature
and buoyancy could support an isolated low-topped supercell capable
of a brief tornado this afternoon. See the prior outlook for
additional info.

..Lyons.. 01/03/2026

.PREV DISCUSSION... /ISSUED 1038 AM CST Sat Jan 03 2026/

...Southeast...
Multiple shortwave troughs currently over the Mid-South/Lower
Mississippi Valley will continue to progress southeastward across
the region today. A relatively moist air mass precedes a weak
surface low and south/southeastward-advancing front, with a band of
scattered convection also a notable pre-frontal factor across
northern Florida and far southern Georgia. This convection and weak
near-frontal convergence should effectively limit severe potential
to its north, while potential severe storm development should be
more probable on its western flank across southern Alabama and the
Florida Panhandle and eventually other parts of far northern
Florida.

Low-level flow will tend to remain veered ahead of the front,
limiting low-level hodograph curvature. Even so, strong mid-level
westerly/southwesterly flow will extend across the region, resulting
in long hodographs that could support occasional organized updrafts.
Primary severe risk will be isolated damaging gusts, although a
low-probability risk for a brief tornado exists as well. Some
isolated hail could also occur, particularly with any storms near
the surface low over southern Alabama and the western Florida
Panhandle during the late afternoon/early evening.

...Northern/Central California and Southwest Oregon...
A shortwave trough will continue to move east-northeastward and
inland over the region today. Modestly broken clusters of
thunderstorms have somewhat increased offshore this morning, with
the lead portion of these storms, including a few low-topped
rotating storms, located around 25-50 miles off the far northern
California coast as of 16z/8am PST. With a strong deep-layer wind
field, a few of these stronger, more organized, and potentially
rotating storms could move inland through midday with damaging wind
and/or waterspout/brief tornado potential. For additional short-term
details, see Mesoscale Discussion 4.

Additionally, into the afternoon, southerly low-level flow through
the Sacramento and northern San Joaquin Valleys, could result in
enough low-level curvature for an isolated low-topped supercell
capable of a brief tornado.

$$

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.