Hourly Weather Forecast - Grafton, IL

12 AM
33°F
0%
6mph
NNW
Clear
Humidity
65%
Feels like
27°F
Dew Point
22°F
1 AM
32°F
0%
6mph
NNW
Clear
Humidity
67%
Feels like
26°F
Dew Point
22°F
2 AM
30°F
0%
5mph
NNW
Clear
Humidity
69%
Feels like
25°F
Dew Point
22°F
3 AM
29°F
0%
5mph
NNW
Clear
Humidity
70%
Feels like
24°F
Dew Point
21°F
4 AM
29°F
0%
5mph
N
Clear
Humidity
70%
Feels like
23°F
Dew Point
20°F
5 AM
28°F
0%
5mph
N
Mostly Clear
Humidity
72%
Feels like
22°F
Dew Point
20°F
6 AM
27°F
0%
5mph
NNE
Mostly Clear
Humidity
74%
Feels like
21°F
Dew Point
20°F
7 AM
27°F
0%
4mph
NNE
Mostly Clear
Humidity
75%
Feels like
22°F
Dew Point
20°F
7:16 AM
8 AM
29°F
0%
4mph
NE
Sunny
Humidity
71%
Feels like
25°F
Dew Point
21°F
9 AM
33°F
0%
4mph
NE
Sunny
Humidity
63%
Feels like
29°F
Dew Point
22°F
10 AM
36°F
0%
4mph
ENE
Mostly Sunny
Humidity
53%
Feels like
32°F
Dew Point
20°F
11 AM
38°F
0%
4mph
E
Partly Cloudy
Humidity
45%
Feels like
36°F
Dew Point
19°F
12 PM
40°F
0%
4mph
ESE
Partly Cloudy
Humidity
41%
Feels like
38°F
Dew Point
19°F
1 PM
42°F
0%
4mph
ESE
Partly Cloudy
Humidity
38%
Feels like
40°F
Dew Point
19°F
2 PM
43°F
0%
5mph
ESE
Partly Cloudy
Humidity
39%
Feels like
40°F
Dew Point
20°F
3 PM
41°F
0%
5mph
SE
Partly Cloudy
Humidity
44%
Feels like
38°F
Dew Point
21°F
4 PM
38°F
0%
5mph
ESE
Partly Cloudy
Humidity
52%
Feels like
34°F
Dew Point
22°F
4:42 PM
5 PM
35°F
0%
6mph
ESE
Partly Cloudy
Humidity
59%
Feels like
31°F
Dew Point
22°F
6 PM
34°F
0%
6mph
ESE
Partly Cloudy
Humidity
59%
Feels like
28°F
Dew Point
21°F
7 PM
33°F
0%
6mph
ESE
Mostly Clear
Humidity
60%
Feels like
27°F
Dew Point
21°F
8 PM
32°F
0%
7mph
ESE
Mostly Clear
Humidity
63%
Feels like
26°F
Dew Point
21°F
9 PM
32°F
0%
7mph
ESE
Clear
Humidity
64%
Feels like
26°F
Dew Point
22°F
10 PM
32°F
0%
8mph
SE
Mostly Clear
Humidity
64%
Feels like
25°F
Dew Point
21°F
11 PM
33°F
0%
8mph
SE
Mostly Clear
Humidity
64%
Feels like
25°F
Dew Point
22°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Weekend Weather Outlook

Weekend Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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