Argonne, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Argonne, IL.

Current Conditions — Argonne, IL

SCHAUMBURG (K06C)

Cloudy

NULL F
Humidity:%
Wind Speed: mph
Barometer: in
Dewpoint: F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 11:35 AM CDT
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5-Day Forecast — Argonne, IL

Wednesday

High 77 °F
Mostly Cloudy
Wednesday
Night
Low 57 °F
Partly Cloudy
Thursday

High 82 °F
Partly Sunny
Thursday
Night
Low 62 °F
Chance of T-storms
Friday

High 75 °F
T-storms Likely
Friday
Night
Low 51 °F
Mostly Clear
Saturday

High 68 °F
Mostly Sunny
Saturday
Night
Low 48 °F
Mostly Cloudy
Sunday

High 69 °F
Partly Sunny

Detailed Forecast — Argonne, IL

Wednesday
Mostly Cloudy. High near 77°F. Wind 7 to 9 mph, with gusts as high as 14 mph.
Wednesday Night
Partly Cloudy. Low around 57°F. Wind 6 to 8 mph, with gusts as high as 12 mph.
Thursday
Partly Sunny. High near 82°F. Wind 8 to 17 mph, with gusts as high as 25 mph.
Thursday Night
Chance of Thunderstorms. Low around 62°F. Wind 13 to 14 mph, with gusts as high as 24 mph.
Friday
Thunderstorms Likely. High near 75°F. Wind 10 to 14 mph, with gusts as high as 22 mph.
Friday Night
Mostly Clear. Low around 51°F. Wind around 8 mph, with gusts as high as 14 mph.
Saturday
Mostly Sunny. High near 68°F. Wind 9 to 12 mph, with gusts as high as 18 mph.
Saturday Night
Mostly Cloudy. Low around 48°F. Wind around 5 mph, with gusts as high as 9 mph.
Sunday
Partly Sunny. High near 69°F. Wind 10 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Chance of Rain. Low around 53°F. Wind around 14 mph, with gusts as high as 23 mph.
Monday
Thunderstorms Likely. High near 73°F. Wind around 20 mph, with gusts as high as 31 mph.
Monday Night
Chance of Rain. Low around 50°F. Wind around 14 mph, with gusts as high as 23 mph.
Tuesday
Mostly Cloudy. High near 66°F. Wind 10 to 16 mph, with gusts as high as 25 mph.
IL Radar
Current Radar • IL
Day 1 Outlook • April 22, 2026

Observation History — Argonne, IL

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
11:35 AM CDT 10.00 Cloudy -- NULL % NA NA M
11:15 AM CDT 10.00 Cloudy -- NULL % NA NA M
10:55 AM CDT W 4.6 10.00 Cloudy -- 68.9 59.4 72% NA NA 29.96 1014.6
10:35 AM CDT NW 4.6 10.00 Cloudy -- 67.1 58.5 74% NA NA 29.96 1014.6
10:15 AM CDT W 4.6 10.00 NULL -- 66.6 58.1 74% NA NA 29.95 1014.2
09:55 AM CDT 8.1 10.00 Cloudy -- 66.6 58.3 75% NA NA 29.95 1014.2
09:15 AM CDT W 8.1 10.00 NULL -- 66.7 58.5 75% NA NA 29.94 1013.9
08:55 AM CDT W 11.5 10.00 Mostly Cloudy -- 66.7 58.5 75% NA NA 29.94 1013.9
08:35 AM CDT 10.4 10.00 Partly Cloudy -- 65.1 58.1 78% NA NA 29.94 1013.9
08:15 AM CDT W 9.2 10.00 Partly Cloudy -- 63.5 57.2 80% NA NA 29.94 1013.9
07:55 AM CDT W 8.1 10.00 Partly Cloudy -- 63.5 57.4 80% NA NA 29.94 1013.9
07:35 AM CDT W 5.7 10.00 Clear -- 62.1 56.8 83% NA NA 29.94 1013.9
07:15 AM CDT 9.2 10.00 Clear -- 61.2 56.3 84% NA NA 29.93 1013.5
06:55 AM CDT 9.2 10.00 Clear -- 60.4 55.8 85% NA NA 29.93 1013.5
06:35 AM CDT 10.00 Clear -- NULL % NA NA M
05:55 AM CDT SW 6.9 10.00 Partly Cloudy -- 59.0 54.7 86% NA NA 29.91 1012.9
05:35 AM CDT SW 5.7 10.00 Mostly Cloudy -- 59.2 54.5 84% NA NA 29.91 1012.9
04:55 AM CDT 3.4 10.00 Partly Cloudy -- 59.5 54.5 83% NA NA 29.90 1012.5
04:35 AM CDT SW 3.4 10.00 Mostly Cloudy -- 60.1 54.5 82% NA NA 29.89 1012.2
04:15 AM CDT SW 4.6 10.00 Mostly Cloudy -- 60.4 54.7 81% NA NA 29.89 1012.2
03:55 AM CDT SW 4.6 10.00 Cloudy -- 60.4 54.7 81% NA NA 29.89 1012.2
03:35 AM CDT SW 4.6 10.00 Partly Cloudy -- 59.9 54.1 81% NA NA 29.89 1012.2
03:15 AM CDT SW 4.6 10.00 Clear -- 60.1 54.0 80% NA NA 29.88 1011.9
02:55 AM CDT SW 3.4 10.00 Clear -- 60.3 54.0 80% NA NA 29.89 1012.2

Regional Weather Observation

SCHAUMBURG (K06C)

Cloudy
NULL F

CHICAGO/DUPAGE (KDPA)

Mostly Cloudy
69.8 F

CHICAGO/AURORA (KARR)

Mostly Cloudy
71.6 F

ROMEOVILLE/CHI (KLOT)

Cloudy
68.0 F

CHICAGO O HARE (KORD)

Cloudy
62.6 F

JOLIET (KJOT)

Cloudy
70.9 F
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