Hourly Weather Forecast - Grafton, IL

12 AM
48°F
0%
8mph
SSW
Mostly Cloudy
Humidity
89%
Feels like
45°F
Dew Point
45°F
1 AM
48°F
0%
7mph
SSW
Mostly Cloudy
Humidity
91%
Feels like
45°F
Dew Point
46°F
2 AM
47°F
0%
7mph
SSW
Mostly Cloudy
Humidity
93%
Feels like
44°F
Dew Point
46°F
3 AM
47°F
0%
7mph
SSW
Mostly Cloudy
Humidity
94%
Feels like
44°F
Dew Point
45°F
4 AM
47°F
0%
7mph
SSW
Mostly Cloudy
Humidity
93%
Feels like
43°F
Dew Point
45°F
5 AM
46°F
0%
6mph
SW
Cloudy
Humidity
93%
Feels like
43°F
Dew Point
44°F
6 AM
47°F
0%
6mph
SW
Cloudy
Humidity
91%
Feels like
43°F
Dew Point
44°F
7 AM
48°F
0%
6mph
SW
Cloudy
Humidity
89%
Feels like
45°F
Dew Point
45°F
7:17 AM
8 AM
50°F
0%
6mph
WSW
Partly Cloudy
Humidity
87%
Feels like
50°F
Dew Point
47°F
9 AM
53°F
0%
6mph
W
Partly Cloudy
Humidity
87%
Feels like
53°F
Dew Point
49°F
10 AM
55°F
0%
6mph
W
Partly Cloudy
Humidity
80%
Feels like
55°F
Dew Point
49°F
11 AM
57°F
0%
7mph
WNW
Partly Cloudy
Humidity
76%
Feels like
57°F
Dew Point
50°F
12 PM
59°F
0%
7mph
WNW
Partly Cloudy
Humidity
72%
Feels like
59°F
Dew Point
50°F
1 PM
60°F
0%
6mph
NW
Partly Cloudy
Humidity
69%
Feels like
60°F
Dew Point
50°F
2 PM
60°F
0%
5mph
NNW
Partly Cloudy
Humidity
69%
Feels like
60°F
Dew Point
50°F
3 PM
58°F
0%
4mph
NNW
Mostly Cloudy
Humidity
73%
Feels like
58°F
Dew Point
49°F
4 PM
55°F
0%
4mph
N
Mostly Cloudy
Humidity
77%
Feels like
55°F
Dew Point
48°F
4:43 PM
5 PM
52°F
0%
5mph
NNE
Mostly Cloudy
Humidity
84%
Feels like
52°F
Dew Point
47°F
6 PM
51°F
0%
5mph
NNE
Mostly Cloudy
Humidity
86%
Feels like
51°F
Dew Point
46°F
7 PM
49°F
0%
5mph
NE
Mostly Cloudy
Humidity
88%
Feels like
47°F
Dew Point
46°F
8 PM
49°F
0%
6mph
NE
Cloudy
Humidity
89%
Feels like
46°F
Dew Point
46°F
9 PM
48°F
10%
6mph
ENE
Cloudy
Humidity
90%
Feels like
45°F
Dew Point
45°F
10 PM
47°F
10%
6mph
ENE
Cloudy
Humidity
88%
Feels like
44°F
Dew Point
44°F
11 PM
47°F
10%
6mph
ENE
Mostly Cloudy
Humidity
88%
Feels like
44°F
Dew Point
43°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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