Hourly Weather Forecast - Collegeville, PA

12 AM
29°F
10%
7mph
NNW
Foggy
Humidity
100%
Feels like
21°F
Dew Point
29°F
1 AM
28°F
10%
7mph
N
Foggy
Humidity
100%
Feels like
20°F
Dew Point
27°F
2 AM
26°F
10%
6mph
N
Foggy
Humidity
100%
Feels like
19°F
Dew Point
26°F
3 AM
25°F
10%
6mph
N
Foggy
Humidity
100%
Feels like
19°F
Dew Point
25°F
4 AM
25°F
10%
5mph
N
Foggy
Humidity
100%
Feels like
18°F
Dew Point
25°F
5 AM
24°F
10%
4mph
N
Foggy
Humidity
100%
Feels like
19°F
Dew Point
24°F
6 AM
24°F
10%
4mph
NNE
Foggy
Humidity
100%
Feels like
19°F
Dew Point
24°F
7 AM
24°F
10%
3mph
NNE
Foggy
Humidity
100%
Feels like
19°F
Dew Point
24°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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