Hourly Weather Forecast - Sycamore, IL

5 AM
17°F
0%
5mph
NNW
Clear
Humidity
81%
Feels like
10°F
Dew Point
13°F
6 AM
17°F
0%
3mph
NNW
Clear
Humidity
82%
Feels like
12°F
Dew Point
12°F
7 AM
16°F
0%
2mph
NW
Clear
Humidity
81%
Feels like
16°F
Dew Point
12°F
7:19 AM
8 AM
18°F
0%
0mph
NW
Sunny
Humidity
78%
Feels like
18°F
Dew Point
12°F
9 AM
20°F
0%
0mph
W
Sunny
Humidity
74%
Feels like
20°F
Dew Point
13°F
10 AM
22°F
0%
1mph
SW
Sunny
Humidity
70%
Feels like
22°F
Dew Point
14°F
11 AM
24°F
0%
2mph
SW
Sunny
Humidity
68%
Feels like
24°F
Dew Point
15°F
12 PM
26°F
0%
3mph
SSW
Sunny
Humidity
65%
Feels like
26°F
Dew Point
16°F
1 PM
27°F
0%
3mph
SSW
Sunny
Humidity
64%
Feels like
27°F
Dew Point
17°F
2 PM
28°F
0%
3mph
SSW
Sunny
Humidity
64%
Feels like
28°F
Dew Point
18°F
3 PM
29°F
0%
3mph
SSW
Sunny
Humidity
64%
Feels like
29°F
Dew Point
18°F
4 PM
28°F
0%
3mph
SSW
Sunny
Humidity
67%
Feels like
28°F
Dew Point
18°F
4:26 PM
5 PM
26°F
0%
3mph
S
Clear
Humidity
68%
Feels like
26°F
Dew Point
17°F
6 PM
25°F
0%
4mph
S
Partly Cloudy
Humidity
64%
Feels like
20°F
Dew Point
14°F
7 PM
24°F
0%
4mph
S
Partly Cloudy
Humidity
68%
Feels like
19°F
Dew Point
15°F
8 PM
25°F
0%
5mph
S
Partly Cloudy
Humidity
70%
Feels like
19°F
Dew Point
16°F
9 PM
25°F
0%
5mph
S
Partly Cloudy
Humidity
71%
Feels like
19°F
Dew Point
17°F
10 PM
26°F
0%
6mph
S
Mostly Cloudy
Humidity
72%
Feels like
20°F
Dew Point
19°F
11 PM
28°F
10%
6mph
S
Mostly Cloudy
Humidity
73%
Feels like
21°F
Dew Point
20°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

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

NOAA, NCDC

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Today's Weather Outlook

Today's 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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