Hourly Weather Forecast - Sycamore, IL

3 AM
20°F
0%
8mph
NW
Clear
Humidity
76%
Feels like
10°F
Dew Point
13°F
4 AM
18°F
0%
7mph
NW
Clear
Humidity
77%
Feels like
9°F
Dew Point
12°F
5 AM
17°F
0%
5mph
NNW
Clear
Humidity
76%
Feels like
10°F
Dew Point
11°F
6 AM
16°F
0%
3mph
NNW
Clear
Humidity
76%
Feels like
11°F
Dew Point
10°F
7 AM
16°F
0%
2mph
NW
Clear
Humidity
75%
Feels like
16°F
Dew Point
10°F
7:19 AM
8 AM
17°F
0%
1mph
NW
Sunny
Humidity
73%
Feels like
17°F
Dew Point
10°F
9 AM
19°F
0%
0mph
W
Sunny
Humidity
71%
Feels like
19°F
Dew Point
11°F
10 AM
21°F
0%
1mph
SW
Sunny
Humidity
68%
Feels like
21°F
Dew Point
12°F
11 AM
23°F
0%
1mph
SW
Sunny
Humidity
66%
Feels like
23°F
Dew Point
14°F
12 PM
25°F
0%
2mph
SSW
Sunny
Humidity
64%
Feels like
25°F
Dew Point
15°F
1 PM
27°F
0%
2mph
SSW
Sunny
Humidity
63%
Feels like
27°F
Dew Point
16°F
2 PM
28°F
0%
2mph
SSW
Sunny
Humidity
63%
Feels like
28°F
Dew Point
17°F
3 PM
28°F
0%
2mph
SSW
Sunny
Humidity
63%
Feels like
28°F
Dew Point
17°F
4 PM
27°F
0%
2mph
SSW
Sunny
Humidity
66%
Feels like
27°F
Dew Point
17°F
4:26 PM
5 PM
26°F
0%
3mph
S
Clear
Humidity
66%
Feels like
26°F
Dew Point
17°F
6 PM
26°F
0%
3mph
S
Clear
Humidity
60%
Feels like
22°F
Dew Point
14°F
7 PM
27°F
0%
4mph
S
Partly Cloudy
Humidity
61%
Feels like
22°F
Dew Point
15°F
8 PM
27°F
0%
5mph
S
Partly Cloudy
Humidity
63%
Feels like
21°F
Dew Point
16°F
9 PM
27°F
0%
5mph
S
Partly Cloudy
Humidity
65%
Feels like
21°F
Dew Point
17°F
10 PM
27°F
0%
6mph
S
Mostly Cloudy
Humidity
68%
Feels like
21°F
Dew Point
18°F
11 PM
28°F
10%
6mph
S
Mostly Cloudy
Humidity
70%
Feels like
21°F
Dew Point
19°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

White Christmas? What Are The Odds

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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