Hourly Weather Forecast - Swarthmore, PA

12 AM
28°F
0%
2mph
WNW
Hazy
Humidity
94%
Feels like
28°F
Dew Point
27°F
1 AM
27°F
0%
1mph
WNW
Hazy
Humidity
96%
Feels like
27°F
Dew Point
26°F
2 AM
26°F
0%
1mph
NW
Hazy
Humidity
98%
Feels like
26°F
Dew Point
26°F
3 AM
25°F
0%
1mph
NNW
Foggy
Humidity
100%
Feels like
25°F
Dew Point
25°F
4 AM
24°F
0%
1mph
NNW
Foggy
Humidity
100%
Feels like
24°F
Dew Point
24°F
5 AM
24°F
0%
1mph
N
Foggy
Humidity
100%
Feels like
24°F
Dew Point
24°F
6 AM
24°F
0%
1mph
NNE
Foggy
Humidity
100%
Feels like
24°F
Dew Point
24°F
7 AM
25°F
0%
1mph
ENE
Foggy
Humidity
100%
Feels like
25°F
Dew Point
24°F
7:17 AM
8 AM
27°F
0%
1mph
E
Partly Cloudy
Humidity
97%
Feels like
27°F
Dew Point
27°F
9 AM
31°F
0%
2mph
ESE
Partly Cloudy
Humidity
96%
Feels like
31°F
Dew Point
30°F
10 AM
35°F
0%
2mph
ESE
Mostly Cloudy
Humidity
92%
Feels like
35°F
Dew Point
32°F
11 AM
37°F
0%
3mph
SE
Mostly Cloudy
Humidity
87%
Feels like
37°F
Dew Point
34°F
12 PM
40°F
0%
3mph
SE
Mostly Cloudy
Humidity
86%
Feels like
40°F
Dew Point
36°F
1 PM
42°F
0%
3mph
SE
Mostly Cloudy
Humidity
83%
Feels like
40°F
Dew Point
37°F
2 PM
43°F
0%
3mph
SE
Cloudy
Humidity
83%
Feels like
41°F
Dew Point
38°F
3 PM
42°F
0%
3mph
SE
Cloudy
Humidity
86%
Feels like
41°F
Dew Point
38°F
4 PM
42°F
10%
4mph
SE
Cloudy
Humidity
89%
Feels like
39°F
Dew Point
38°F
4:38 PM
5 PM
41°F
10%
4mph
SE
Cloudy
Humidity
90%
Feels like
38°F
Dew Point
38°F
6 PM
41°F
20%
4mph
SSE
Cloudy
Humidity
91%
Feels like
38°F
Dew Point
39°F
7 PM
42°F
40%
5mph
SSE
40% Chance of Light Rain
Humidity
94%
Feels like
38°F
Dew Point
40°F
8 PM
42°F
50%
6mph
SSE
50% Chance of Light Rain
Humidity
94%
Feels like
39°F
Dew Point
41°F
9 PM
43°F
70%
6mph
SSE
70% Chance of Light Rain
Humidity
96%
Feels like
39°F
Dew Point
42°F
10 PM
44°F
80%
7mph
SSE
80% Chance of Light Rain
Humidity
98%
Feels like
40°F
Dew Point
44°F
11 PM
46°F
90%
9mph
SSE
Rain
Humidity
97%
Feels like
41°F
Dew Point
45°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Tuesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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