Hourly Weather Forecast - Grafton, IL

12 AM
46°F
10%
6mph
E
Mostly Cloudy
Humidity
90%
Feels like
43°F
Dew Point
43°F
1 AM
46°F
10%
6mph
E
Mostly Cloudy
Humidity
91%
Feels like
42°F
Dew Point
43°F
2 AM
45°F
10%
6mph
E
Mostly Cloudy
Humidity
92%
Feels like
42°F
Dew Point
43°F
3 AM
45°F
10%
7mph
ESE
Mostly Cloudy
Humidity
92%
Feels like
41°F
Dew Point
43°F
4 AM
45°F
10%
7mph
ESE
Mostly Cloudy
Humidity
91%
Feels like
41°F
Dew Point
43°F
5 AM
46°F
20%
8mph
ESE
Mostly Cloudy
Humidity
91%
Feels like
42°F
Dew Point
44°F
6 AM
46°F
10%
8mph
SE
Cloudy
Humidity
91%
Feels like
42°F
Dew Point
44°F
7 AM
48°F
10%
8mph
SE
Cloudy
Humidity
92%
Feels like
44°F
Dew Point
45°F
7:18 AM
8 AM
49°F
10%
9mph
SE
Cloudy
Humidity
91%
Feels like
46°F
Dew Point
47°F
9 AM
52°F
10%
9mph
SE
Cloudy
Humidity
91%
Feels like
52°F
Dew Point
49°F
10 AM
55°F
10%
10mph
SSE
Mostly Cloudy
Humidity
89%
Feels like
55°F
Dew Point
51°F
11 AM
57°F
10%
10mph
SSE
Mostly Cloudy
Humidity
88%
Feels like
57°F
Dew Point
53°F
12 PM
59°F
10%
11mph
SSE
Mostly Cloudy
Humidity
86%
Feels like
59°F
Dew Point
55°F
1 PM
62°F
10%
11mph
S
Partly Cloudy
Humidity
82%
Feels like
62°F
Dew Point
56°F
2 PM
65°F
10%
11mph
S
Mostly Cloudy
Humidity
80%
Feels like
65°F
Dew Point
58°F
3 PM
65°F
10%
12mph
S
Mostly Cloudy
Humidity
82%
Feels like
65°F
Dew Point
60°F
4 PM
65°F
0%
11mph
S
Partly Cloudy
Humidity
86%
Feels like
65°F
Dew Point
60°F
4:44 PM
5 PM
64°F
0%
11mph
S
Partly Cloudy
Humidity
90%
Feels like
64°F
Dew Point
61°F
6 PM
63°F
0%
11mph
S
Partly Cloudy
Humidity
89%
Feels like
63°F
Dew Point
60°F
7 PM
62°F
0%
10mph
S
Partly Cloudy
Humidity
90%
Feels like
62°F
Dew Point
59°F
8 PM
62°F
10%
11mph
S
Partly Cloudy
Humidity
92%
Feels like
62°F
Dew Point
59°F
9 PM
62°F
0%
11mph
SSW
Partly Cloudy
Humidity
92%
Feels like
62°F
Dew Point
59°F
10 PM
61°F
0%
11mph
SSW
Partly Cloudy
Humidity
91%
Feels like
61°F
Dew Point
59°F
11 PM
62°F
0%
10mph
SSW
Partly Cloudy
Humidity
89%
Feels like
62°F
Dew Point
58°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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