Hourly Weather Forecast - Sycamore, IL

3 AM
26°F
0%
14mph
S
Mostly Cloudy
Humidity
94%
Feels like
15°F
Dew Point
25°F
4 AM
28°F
0%
14mph
S
Mostly Cloudy
Humidity
92%
Feels like
16°F
Dew Point
26°F
5 AM
29°F
0%
14mph
S
Mostly Cloudy
Humidity
91%
Feels like
18°F
Dew Point
26°F
6 AM
30°F
0%
13mph
S
Mostly Cloudy
Humidity
89%
Feels like
19°F
Dew Point
27°F
7 AM
31°F
0%
13mph
SSW
Partly Cloudy
Humidity
88%
Feels like
21°F
Dew Point
28°F
7:18 AM
8 AM
32°F
10%
13mph
SSW
Mostly Cloudy
Humidity
86%
Feels like
23°F
Dew Point
29°F
9 AM
34°F
10%
12mph
SW
Cloudy
Humidity
85%
Feels like
25°F
Dew Point
30°F
10 AM
35°F
10%
11mph
SW
Mostly Cloudy
Humidity
83%
Feels like
27°F
Dew Point
30°F
11 AM
36°F
10%
10mph
WSW
Cloudy
Humidity
81%
Feels like
28°F
Dew Point
30°F
12 PM
36°F
10%
9mph
W
Cloudy
Humidity
78%
Feels like
29°F
Dew Point
30°F
1 PM
36°F
0%
9mph
W
Mostly Cloudy
Humidity
78%
Feels like
29°F
Dew Point
29°F
2 PM
35°F
0%
8mph
WNW
Mostly Cloudy
Humidity
77%
Feels like
29°F
Dew Point
29°F
3 PM
34°F
0%
7mph
WNW
Partly Cloudy
Humidity
77%
Feels like
28°F
Dew Point
28°F
4 PM
32°F
0%
7mph
WNW
Partly Cloudy
Humidity
77%
Feels like
26°F
Dew Point
26°F
4:25 PM
5 PM
30°F
0%
7mph
W
Partly Cloudy
Humidity
80%
Feels like
23°F
Dew Point
24°F
6 PM
28°F
0%
8mph
W
Mostly Clear
Humidity
78%
Feels like
19°F
Dew Point
22°F
7 PM
26°F
0%
9mph
WNW
Clear
Humidity
78%
Feels like
17°F
Dew Point
20°F
8 PM
25°F
0%
10mph
WNW
Clear
Humidity
74%
Feels like
15°F
Dew Point
18°F
9 PM
25°F
0%
11mph
WNW
Clear
Humidity
70%
Feels like
14°F
Dew Point
17°F
10 PM
25°F
0%
12mph
WNW
Clear
Humidity
69%
Feels like
14°F
Dew Point
16°F
11 PM
24°F
0%
12mph
WNW
Clear
Humidity
70%
Feels like
13°F
Dew Point
16°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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