Hourly Weather Forecast - Collinsville, IL

12 AM
13°F
10%
3mph
E
Clear
Humidity
55%
Feels like
8°F
Dew Point
0°F
1 AM
13°F
10%
3mph
ESE
Clear
Humidity
56%
Feels like
7°F
Dew Point
0°F
2 AM
12°F
10%
3mph
ESE
Clear
Humidity
57%
Feels like
6°F
Dew Point
0°F
3 AM
12°F
10%
3mph
ESE
Clear
Humidity
58%
Feels like
6°F
Dew Point
0°F
4 AM
12°F
10%
4mph
SE
Clear
Humidity
59%
Feels like
5°F
Dew Point
0°F
5 AM
11°F
10%
4mph
SE
Clear
Humidity
60%
Feels like
5°F
Dew Point
1°F
6 AM
11°F
10%
4mph
SE
Clear
Humidity
62%
Feels like
4°F
Dew Point
1°F
7 AM
12°F
10%
4mph
SSE
Mostly Clear
Humidity
61%
Feels like
5°F
Dew Point
2°F
7:10 AM
8 AM
15°F
10%
5mph
SSE
Partly Cloudy
Humidity
58%
Feels like
7°F
Dew Point
3°F
9 AM
18°F
10%
6mph
SSE
Mostly Cloudy
Humidity
53%
Feels like
9°F
Dew Point
4°F
10 AM
21°F
10%
6mph
SSE
Cloudy
Humidity
48%
Feels like
13°F
Dew Point
5°F
11 AM
25°F
10%
7mph
S
Cloudy
Humidity
43%
Feels like
17°F
Dew Point
6°F
12 PM
28°F
10%
7mph
S
Cloudy
Humidity
40%
Feels like
21°F
Dew Point
7°F
1 PM
30°F
10%
7mph
S
Mostly Cloudy
Humidity
39%
Feels like
23°F
Dew Point
8°F
2 PM
31°F
10%
7mph
S
Partly Cloudy
Humidity
39%
Feels like
25°F
Dew Point
10°F
3 PM
32°F
10%
6mph
S
Partly Cloudy
Humidity
42%
Feels like
25°F
Dew Point
11°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

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Allergy Forecast

Snow & Ski Forecast

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