Romeoville, IL Weather Forecast & Alerts

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

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Current Conditions — Romeoville, IL

SCHAUMBURG (K06C)

Clear

NULL F
Humidity:%
Wind Speed: mph
Barometer: in
Dewpoint: F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 06:35 AM CDT
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5-Day Forecast — Romeoville, IL

Wednesday

High 77 °F
Mostly Cloudy
Wednesday
Night
Low 59 °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 53 °F
Partly Cloudy
Saturday

High 69 °F
Partly Sunny
Saturday
Night
Low 48 °F
Partly Cloudy
Sunday

High 69 °F
Partly Sunny

Detailed Forecast — Romeoville, IL

Wednesday
Mostly Cloudy. High near 77°F. Wind 7 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Partly Cloudy. Low around 59°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 23 mph.
Friday
Thunderstorms Likely. High near 75°F. Wind 9 to 14 mph, with gusts as high as 22 mph.
Friday Night
Partly Cloudy. Low around 53°F. Wind around 7 mph, with gusts as high as 14 mph.
Saturday
Partly Sunny. High near 69°F. Wind around 10 mph, with gusts as high as 16 mph.
Saturday Night
Partly Cloudy. Low around 48°F. Wind around 6 mph, with gusts as high as 10 mph.
Sunday
Partly Sunny. High near 69°F. Wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Chance of Rain. Low around 53°F. Wind around 13 mph, with gusts as high as 22 mph.
Monday
Thunderstorms Likely. High near 69°F. Wind 16 to 17 mph, with gusts as high as 26 mph.
Monday Night
Chance of Rain. Low around 50°F. Wind around 14 mph, with gusts as high as 22 mph.
Tuesday
Mostly Cloudy. High near 64°F. Wind 12 to 16 mph, with gusts as high as 24 mph.
IL Radar
Current Radar • IL
Day 1 Outlook • April 22, 2026

Observation History — Romeoville, 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)
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
02:35 AM CDT SW 3.4 10.00 Clear -- 61.0 54.0 78% NA NA 29.88 1011.9
02:15 AM CDT SW 4.6 10.00 Clear -- 61.0 53.6 77% NA NA 29.89 1012.2
01:55 AM CDT SW 3.4 10.00 Clear -- 60.8 53.6 77% NA NA 29.89 1012.2
01:35 AM CDT SW 3.4 10.00 Clear -- 61.7 53.6 75% NA NA 29.89 1012.2
01:15 AM CDT 4.6 10.00 Clear -- 61.5 53.8 76% NA NA 29.89 1012.2
12:55 AM CDT 5.7 10.00 Clear -- 60.4 54.0 79% NA NA 29.89 1012.2
12:35 AM CDT SW 4.6 10.00 Clear -- 59.2 52.3 78% NA NA 29.89 1012.2
12:15 AM CDT 10.00 Clear -- NULL % NA NA M
11:35 PM CDT 4.6 10.00 Clear -- 63.3 53.8 71% NA NA 29.89 1012.2
11:15 PM CDT 4.6 10.00 Clear -- 62.1 53.2 73% NA NA 29.90 1012.5
10:55 PM CDT 0.0 10.00 Clear -- 62.4 52.5 70% NA NA 29.90 1012.5
10:35 PM CDT 10.00 Clear -- NULL % NA NA M
10:15 PM CDT SW 3.4 10.00 Clear -- 62.6 52.2 69% NA NA 29.90 1012.5
08:35 PM CDT 10.00 Clear -- NULL % NA NA M

Regional Weather Observation

SCHAUMBURG (K06C)

Clear
NULL F

CHICAGO/DUPAGE (KDPA)

Clear
59.0 F

CHICAGO/AURORA (KARR)

Clear
60.8 F

ROMEOVILLE/CHI (KLOT)

Partly Cloudy
64.4 F

JOLIET (KJOT)

Partly Cloudy
63.1 F

CHICAGO O HARE (KORD)

Clear
62.6 F
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