Hourly Weather Forecast - Merna, IL

12 AM
19°F
10%
24mph
WNW
Windy
Humidity
75%
Feels like
1°F
Dew Point
12°F
1 AM
18°F
10%
23mph
WNW
Windy
Humidity
73%
Feels like
0°F
Dew Point
11°F
2 AM
17°F
0%
22mph
WNW
Windy
Humidity
72%
Feels like
-1°F
Dew Point
9°F
3 AM
16°F
0%
21mph
WNW
Windy
Humidity
72%
Feels like
-1°F
Dew Point
9°F
4 AM
15°F
0%
19mph
WNW
Clear
Humidity
73%
Feels like
-2°F
Dew Point
8°F
5 AM
15°F
0%
18mph
WNW
Clear
Humidity
74%
Feels like
-2°F
Dew Point
8°F
6 AM
15°F
0%
16mph
WNW
Clear
Humidity
74%
Feels like
-1°F
Dew Point
8°F
7 AM
15°F
0%
15mph
WNW
Clear
Humidity
72%
Feels like
0°F
Dew Point
8°F
7:14 AM
8 AM
16°F
0%
14mph
NW
Sunny
Humidity
68%
Feels like
2°F
Dew Point
8°F
9 AM
17°F
0%
13mph
WNW
Sunny
Humidity
64%
Feels like
4°F
Dew Point
7°F
10 AM
19°F
0%
12mph
WNW
Sunny
Humidity
59%
Feels like
7°F
Dew Point
7°F
11 AM
21°F
0%
12mph
W
Sunny
Humidity
54%
Feels like
9°F
Dew Point
7°F
12 PM
23°F
0%
11mph
W
Sunny
Humidity
50%
Feels like
11°F
Dew Point
7°F
1 PM
24°F
0%
11mph
WSW
Mostly Sunny
Humidity
47%
Feels like
13°F
Dew Point
7°F
2 PM
25°F
0%
11mph
SW
Mostly Sunny
Humidity
46%
Feels like
14°F
Dew Point
7°F
3 PM
26°F
0%
11mph
SSW
Partly Cloudy
Humidity
47%
Feels like
15°F
Dew Point
8°F
4 PM
26°F
0%
11mph
SSW
Partly Cloudy
Humidity
48%
Feels like
15°F
Dew Point
9°F
4:30 PM
5 PM
25°F
0%
11mph
S
Partly Cloudy
Humidity
51%
Feels like
14°F
Dew Point
9°F
6 PM
24°F
0%
12mph
SSE
Partly Cloudy
Humidity
54%
Feels like
13°F
Dew Point
10°F
7 PM
24°F
0%
14mph
SSE
Partly Cloudy
Humidity
57%
Feels like
12°F
Dew Point
11°F
8 PM
25°F
0%
15mph
S
Partly Cloudy
Humidity
59%
Feels like
12°F
Dew Point
12°F
9 PM
25°F
0%
16mph
S
Partly Cloudy
Humidity
61%
Feels like
12°F
Dew Point
14°F
10 PM
26°F
0%
17mph
S
Partly Cloudy
Humidity
63%
Feels like
13°F
Dew Point
15°F
11 PM
27°F
0%
18mph
S
Mostly Cloudy
Humidity
63%
Feels like
14°F
Dew Point
16°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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