Hourly Weather Forecast - Lemont, IL

12 AM
25°F
30%
14mph
WNW
30% Chance Frozen Mix
Humidity
74%
Feels like
13°F
Dew Point
17°F
1 AM
23°F
30%
14mph
WNW
30% Chance Frozen Mix
Humidity
72%
Feels like
11°F
Dew Point
16°F
2 AM
22°F
10%
13mph
WNW
Cloudy
Humidity
71%
Feels like
9°F
Dew Point
14°F
3 AM
20°F
0%
12mph
WNW
Cloudy
Humidity
70%
Feels like
8°F
Dew Point
12°F
4 AM
19°F
0%
11mph
WNW
Mostly Cloudy
Humidity
69%
Feels like
7°F
Dew Point
10°F
5 AM
18°F
0%
10mph
WNW
Mostly Cloudy
Humidity
67%
Feels like
7°F
Dew Point
9°F
6 AM
18°F
0%
9mph
WNW
Mostly Cloudy
Humidity
65%
Feels like
6°F
Dew Point
8°F
7 AM
17°F
0%
9mph
WNW
Partly Cloudy
Humidity
63%
Feels like
6°F
Dew Point
7°F
7:14 AM
8 AM
18°F
0%
9mph
WNW
Partly Cloudy
Humidity
61%
Feels like
7°F
Dew Point
6°F
9 AM
18°F
10%
8mph
WNW
Mostly Sunny
Humidity
58%
Feels like
9°F
Dew Point
6°F
10 AM
20°F
10%
7mph
WNW
Mostly Sunny
Humidity
55%
Feels like
10°F
Dew Point
6°F
11 AM
21°F
10%
6mph
W
Sunny
Humidity
52%
Feels like
12°F
Dew Point
6°F
12 PM
22°F
10%
6mph
WSW
Sunny
Humidity
50%
Feels like
14°F
Dew Point
6°F
1 PM
22°F
10%
5mph
SW
Sunny
Humidity
50%
Feels like
16°F
Dew Point
7°F
2 PM
23°F
0%
4mph
SW
Sunny
Humidity
51%
Feels like
17°F
Dew Point
8°F
3 PM
23°F
0%
4mph
SSW
Sunny
Humidity
53%
Feels like
18°F
Dew Point
8°F
4 PM
23°F
0%
4mph
S
Mostly Sunny
Humidity
56%
Feels like
18°F
Dew Point
10°F
4:23 PM
5 PM
23°F
0%
4mph
S
Partly Cloudy
Humidity
61%
Feels like
18°F
Dew Point
11°F
6 PM
23°F
0%
4mph
SSE
Partly Cloudy
Humidity
65%
Feels like
17°F
Dew Point
13°F
7 PM
23°F
0%
5mph
SSE
Partly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
14°F
8 PM
23°F
0%
5mph
SSE
Partly Cloudy
Humidity
70%
Feels like
17°F
Dew Point
15°F
9 PM
24°F
10%
6mph
S
Partly Cloudy
Humidity
72%
Feels like
17°F
Dew Point
16°F
10 PM
24°F
10%
6mph
S
Partly Cloudy
Humidity
72%
Feels like
17°F
Dew Point
17°F
11 PM
25°F
10%
6mph
S
Mostly Cloudy
Humidity
72%
Feels like
18°F
Dew Point
17°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

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

Cold Air Damming - Cause And Effects

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