Hourly Weather Forecast - Vandalia, IL

12 AM
11°F
0%
3mph
WSW
Mostly Clear
Humidity
51%
Feels like
11°F
Dew Point
-3°F
1 AM
11°F
0%
3mph
WSW
Clear
Humidity
52%
Feels like
11°F
Dew Point
-3°F
2 AM
11°F
0%
3mph
SW
Clear
Humidity
53%
Feels like
5°F
Dew Point
-3°F
3 AM
11°F
0%
4mph
SW
Clear
Humidity
54%
Feels like
4°F
Dew Point
-3°F
4 AM
10°F
0%
4mph
SW
Clear
Humidity
56%
Feels like
3°F
Dew Point
-3°F
5 AM
10°F
0%
4mph
SSW
Clear
Humidity
57%
Feels like
3°F
Dew Point
-3°F
6 AM
10°F
0%
4mph
SSW
Clear
Humidity
56%
Feels like
2°F
Dew Point
-3°F
7 AM
11°F
0%
5mph
SSW
Clear
Humidity
54%
Feels like
3°F
Dew Point
-2°F
7:11 AM
8 AM
13°F
0%
6mph
SSW
Sunny
Humidity
51%
Feels like
4°F
Dew Point
-1°F
9 AM
16°F
0%
7mph
SSW
Sunny
Humidity
47%
Feels like
6°F
Dew Point
-1°F
10 AM
19°F
0%
9mph
SSW
Sunny
Humidity
43%
Feels like
8°F
Dew Point
0°F
11 AM
22°F
0%
10mph
SSW
Mostly Sunny
Humidity
39%
Feels like
12°F
Dew Point
1°F
12 PM
25°F
0%
11mph
SSW
Mostly Sunny
Humidity
36%
Feels like
15°F
Dew Point
2°F
1 PM
28°F
0%
11mph
SSW
Mostly Sunny
Humidity
35%
Feels like
18°F
Dew Point
3°F
2 PM
29°F
0%
11mph
SSW
Mostly Sunny
Humidity
34%
Feels like
20°F
Dew Point
5°F
3 PM
30°F
0%
11mph
SSW
Partly Cloudy
Humidity
35%
Feels like
21°F
Dew Point
6°F
4 PM
30°F
0%
10mph
S
Partly Cloudy
Humidity
37%
Feels like
21°F
Dew Point
7°F
5 PM
28°F
0%
9mph
S
Mostly Sunny
Humidity
40%
Feels like
20°F
Dew Point
7°F
5:03 PM
6 PM
27°F
0%
9mph
S
Mostly Clear
Humidity
43%
Feels like
18°F
Dew Point
8°F
7 PM
27°F
0%
9mph
S
Partly Cloudy
Humidity
46%
Feels like
18°F
Dew Point
9°F
8 PM
27°F
0%
11mph
S
Mostly Cloudy
Humidity
48%
Feels like
17°F
Dew Point
10°F
9 PM
27°F
0%
12mph
S
Cloudy
Humidity
49%
Feels like
16°F
Dew Point
10°F
10 PM
27°F
0%
13mph
S
Cloudy
Humidity
50%
Feels like
17°F
Dew Point
11°F
11 PM
28°F
0%
13mph
S
Cloudy
Humidity
50%
Feels like
17°F
Dew Point
12°F

Snow Forecast through Sunday

Unrelenting Storm Track Brings Snow to Great Lakes & Northeast

A couple low pressure systems will produce additional snowfall across the Great Lakes, Upper Midwest, and Northeast this weekend into the upcoming week.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

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

Safety Tips For Icy Surfaces

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