Hourly Weather Forecast - Mechanicsburg, PA

12 AM
33°F
10%
1mph
SE
Mostly Cloudy
Humidity
79%
Feels like
33°F
Dew Point
27°F
1 AM
33°F
20%
2mph
SE
Mostly Cloudy
Humidity
80%
Feels like
33°F
Dew Point
27°F
2 AM
33°F
40%
2mph
SE
40% Chance of Light Rain
Humidity
81%
Feels like
33°F
Dew Point
27°F
3 AM
33°F
50%
2mph
SE
50% Chance of Light Rain
Humidity
81%
Feels like
33°F
Dew Point
28°F
4 AM
33°F
60%
2mph
SSE
60% Chance of Light Rain
Humidity
81%
Feels like
33°F
Dew Point
28°F
5 AM
34°F
60%
3mph
SSE
60% Chance of Light Rain
Humidity
82%
Feels like
34°F
Dew Point
29°F
6 AM
34°F
60%
3mph
SSE
60% Chance of Light Rain
Humidity
84%
Feels like
31°F
Dew Point
30°F
7 AM
34°F
50%
3mph
SSE
50% Chance of Light Rain
Humidity
86%
Feels like
34°F
Dew Point
31°F
7:28 AM
8 AM
35°F
50%
2mph
SSE
50% Chance of Light Rain
Humidity
87%
Feels like
35°F
Dew Point
32°F
9 AM
37°F
50%
2mph
SSE
50% Chance of Light Rain
Humidity
86%
Feels like
37°F
Dew Point
33°F
10 AM
38°F
40%
2mph
SSE
40% Chance of Light Rain
Humidity
86%
Feels like
38°F
Dew Point
34°F
11 AM
39°F
30%
2mph
SSE
30% Chance of Light Rain
Humidity
86%
Feels like
39°F
Dew Point
35°F
12 PM
40°F
30%
1mph
S
30% Chance of Light Rain
Humidity
85%
Feels like
40°F
Dew Point
36°F
1 PM
42°F
30%
1mph
S
30% Chance of Light Rain
Humidity
83%
Feels like
42°F
Dew Point
37°F
2 PM
42°F
30%
1mph
S
30% Chance of Light Rain
Humidity
83%
Feels like
42°F
Dew Point
38°F
3 PM
43°F
30%
1mph
SSE
30% Chance of Light Rain
Humidity
84%
Feels like
43°F
Dew Point
38°F
4 PM
42°F
30%
1mph
SSE
30% Chance of Light Rain
Humidity
87%
Feels like
42°F
Dew Point
38°F
4:47 PM
5 PM
42°F
30%
1mph
SSE
30% Chance of Light Rain
Humidity
89%
Feels like
42°F
Dew Point
38°F
6 PM
41°F
30%
1mph
SSE
30% Chance of Light Rain
Humidity
90%
Feels like
41°F
Dew Point
38°F
7 PM
41°F
30%
1mph
SSE
30% Chance of Light Rain
Humidity
91%
Feels like
41°F
Dew Point
38°F
8 PM
40°F
30%
1mph
SSE
30% Chance of Light Rain
Humidity
92%
Feels like
40°F
Dew Point
38°F
9 PM
40°F
30%
1mph
SSE
30% Chance of Light Rain
Humidity
94%
Feels like
40°F
Dew Point
38°F
10 PM
40°F
30%
1mph
SSE
30% Chance of Light Rain
Humidity
94%
Feels like
40°F
Dew Point
38°F
11 PM
40°F
20%
1mph
SSE
Cloudy
Humidity
94%
Feels like
40°F
Dew Point
38°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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Sunday's Weather Outlook

Sunday'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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