Hourly Weather Forecast - Sycamore, IL

12 AM
28°F
10%
6mph
S
Cloudy
Humidity
75%
Feels like
21°F
Dew Point
21°F
1 AM
29°F
10%
6mph
S
Cloudy
Humidity
75%
Feels like
22°F
Dew Point
22°F
2 AM
29°F
10%
6mph
S
Cloudy
Humidity
74%
Feels like
22°F
Dew Point
22°F
3 AM
29°F
10%
6mph
S
Cloudy
Humidity
73%
Feels like
22°F
Dew Point
21°F
4 AM
29°F
10%
6mph
S
Cloudy
Humidity
72%
Feels like
22°F
Dew Point
21°F
5 AM
29°F
10%
7mph
S
Cloudy
Humidity
70%
Feels like
22°F
Dew Point
21°F
6 AM
29°F
10%
7mph
S
Cloudy
Humidity
69%
Feels like
22°F
Dew Point
20°F
7 AM
30°F
10%
8mph
S
Cloudy
Humidity
67%
Feels like
23°F
Dew Point
20°F
7:19 AM
8 AM
31°F
10%
8mph
S
Cloudy
Humidity
64%
Feels like
24°F
Dew Point
21°F
9 AM
33°F
10%
9mph
S
Cloudy
Humidity
61%
Feels like
26°F
Dew Point
21°F
10 AM
35°F
10%
10mph
S
Cloudy
Humidity
57%
Feels like
28°F
Dew Point
22°F
11 AM
37°F
10%
10mph
S
Cloudy
Humidity
55%
Feels like
29°F
Dew Point
22°F
12 PM
37°F
10%
10mph
S
Cloudy
Humidity
55%
Feels like
30°F
Dew Point
22°F
1 PM
37°F
30%
9mph
S
30% Chance of Light Rain
Humidity
58%
Feels like
31°F
Dew Point
24°F
2 PM
37°F
10%
8mph
S
Cloudy
Humidity
61%
Feels like
31°F
Dew Point
25°F
3 PM
37°F
10%
7mph
S
Cloudy
Humidity
63%
Feels like
32°F
Dew Point
26°F
4 PM
37°F
20%
6mph
S
Cloudy
Humidity
68%
Feels like
32°F
Dew Point
27°F
4:26 PM
5 PM
37°F
10%
6mph
SSW
Mostly Cloudy
Humidity
72%
Feels like
32°F
Dew Point
28°F
6 PM
36°F
10%
6mph
SSW
Mostly Cloudy
Humidity
75%
Feels like
31°F
Dew Point
29°F
7 PM
36°F
10%
5mph
SSW
Mostly Cloudy
Humidity
80%
Feels like
31°F
Dew Point
30°F
8 PM
36°F
0%
5mph
SSW
Partly Cloudy
Humidity
83%
Feels like
31°F
Dew Point
31°F
9 PM
36°F
0%
5mph
SSW
Partly Cloudy
Humidity
87%
Feels like
32°F
Dew Point
33°F
10 PM
37°F
0%
5mph
SSW
Partly Cloudy
Humidity
90%
Feels like
32°F
Dew Point
34°F
11 PM
37°F
0%
5mph
SSW
Partly Cloudy
Humidity
92%
Feels like
33°F
Dew Point
35°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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