Hourly Weather Forecast - Sycamore, IL

12 AM
37°F
0%
5mph
SW
Hazy
Humidity
95%
Feels like
33°F
Dew Point
36°F
1 AM
37°F
0%
5mph
SW
Hazy
Humidity
96%
Feels like
33°F
Dew Point
36°F
2 AM
37°F
0%
5mph
SW
Foggy
Humidity
99%
Feels like
32°F
Dew Point
36°F
3 AM
36°F
0%
5mph
WSW
Foggy
Humidity
100%
Feels like
32°F
Dew Point
36°F
4 AM
35°F
0%
5mph
WSW
Foggy
Humidity
100%
Feels like
31°F
Dew Point
35°F
5 AM
35°F
0%
5mph
W
Foggy
Humidity
100%
Feels like
30°F
Dew Point
35°F
6 AM
35°F
0%
5mph
W
Foggy
Humidity
100%
Feels like
30°F
Dew Point
35°F
7 AM
35°F
0%
5mph
W
Foggy
Humidity
100%
Feels like
31°F
Dew Point
35°F
7:20 AM
8 AM
37°F
0%
5mph
WNW
Foggy
Humidity
99%
Feels like
32°F
Dew Point
37°F
9 AM
39°F
0%
5mph
WNW
Hazy
Humidity
97%
Feels like
35°F
Dew Point
38°F
10 AM
41°F
0%
5mph
WNW
Hazy
Humidity
92%
Feels like
37°F
Dew Point
38°F
11 AM
42°F
0%
5mph
NW
Sunny
Humidity
88%
Feels like
39°F
Dew Point
39°F
12 PM
43°F
0%
5mph
NW
Sunny
Humidity
83%
Feels like
40°F
Dew Point
38°F
1 PM
43°F
0%
5mph
NW
Mostly Sunny
Humidity
81%
Feels like
40°F
Dew Point
38°F
2 PM
43°F
0%
4mph
NW
Mostly Sunny
Humidity
80%
Feels like
41°F
Dew Point
37°F
3 PM
42°F
0%
4mph
NW
Mostly Sunny
Humidity
81%
Feels like
39°F
Dew Point
36°F
4 PM
39°F
0%
3mph
NW
Mostly Sunny
Humidity
86%
Feels like
37°F
Dew Point
35°F
4:27 PM
5 PM
37°F
0%
3mph
NW
Mostly Clear
Humidity
89%
Feels like
37°F
Dew Point
34°F
6 PM
35°F
0%
3mph
NNW
Hazy
Humidity
93%
Feels like
35°F
Dew Point
33°F
7 PM
34°F
0%
2mph
NNW
Hazy
Humidity
95%
Feels like
34°F
Dew Point
32°F
8 PM
33°F
0%
2mph
NNW
Partly Cloudy
Humidity
94%
Feels like
33°F
Dew Point
31°F
9 PM
32°F
0%
3mph
N
Mostly Cloudy
Humidity
95%
Feels like
32°F
Dew Point
31°F
10 PM
32°F
0%
2mph
NNE
Mostly Cloudy
Humidity
94%
Feels like
32°F
Dew Point
30°F
11 PM
31°F
0%
2mph
NE
Mostly Cloudy
Humidity
94%
Feels like
31°F
Dew Point
30°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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