Hourly Weather Forecast - Mechanicsburg, PA

12 AM
31°F
20%
3mph
SSE
Cloudy
Humidity
68%
Feels like
31°F
Dew Point
22°F
1 AM
32°F
20%
3mph
S
Cloudy
Humidity
67%
Feels like
32°F
Dew Point
23°F
2 AM
33°F
30%
3mph
SSE
30% Chance of Flurries
Humidity
66%
Feels like
30°F
Dew Point
23°F
3 AM
34°F
40%
4mph
SSE
40% Chance of Light Rain
Humidity
66%
Feels like
30°F
Dew Point
24°F
4 AM
34°F
50%
4mph
SSE
50% Chance of Light Rain
Humidity
66%
Feels like
31°F
Dew Point
24°F
5 AM
34°F
60%
4mph
SSE
60% Chance of Light Rain
Humidity
68%
Feels like
31°F
Dew Point
25°F
6 AM
34°F
60%
4mph
SSE
60% Chance of Light Rain
Humidity
72%
Feels like
31°F
Dew Point
26°F
7 AM
34°F
50%
4mph
S
50% Chance of Light Rain
Humidity
75%
Feels like
31°F
Dew Point
27°F
7:27 AM
8 AM
35°F
30%
3mph
S
30% Chance of Light Rain
Humidity
77%
Feels like
32°F
Dew Point
28°F
9 AM
36°F
10%
3mph
S
Cloudy
Humidity
78%
Feels like
33°F
Dew Point
29°F
10 AM
37°F
10%
3mph
S
Cloudy
Humidity
79%
Feels like
35°F
Dew Point
31°F
11 AM
38°F
10%
3mph
SSW
Cloudy
Humidity
79%
Feels like
38°F
Dew Point
32°F
12 PM
39°F
10%
3mph
SW
Cloudy
Humidity
80%
Feels like
39°F
Dew Point
34°F
1 PM
41°F
10%
3mph
WSW
Cloudy
Humidity
79%
Feels like
39°F
Dew Point
35°F
2 PM
42°F
10%
3mph
WSW
Cloudy
Humidity
78%
Feels like
42°F
Dew Point
35°F
3 PM
42°F
0%
3mph
WSW
Cloudy
Humidity
79%
Feels like
42°F
Dew Point
35°F
4 PM
41°F
0%
3mph
W
Cloudy
Humidity
82%
Feels like
41°F
Dew Point
36°F
4:46 PM
5 PM
40°F
10%
3mph
W
Cloudy
Humidity
83%
Feels like
40°F
Dew Point
36°F
6 PM
40°F
10%
3mph
W
Cloudy
Humidity
84%
Feels like
38°F
Dew Point
36°F
7 PM
41°F
10%
4mph
W
Mostly Cloudy
Humidity
85%
Feels like
38°F
Dew Point
37°F
8 PM
40°F
10%
5mph
W
Mostly Cloudy
Humidity
86%
Feels like
37°F
Dew Point
37°F
9 PM
40°F
0%
5mph
WNW
Mostly Cloudy
Humidity
87%
Feels like
37°F
Dew Point
37°F
10 PM
40°F
0%
6mph
WNW
Mostly Cloudy
Humidity
85%
Feels like
36°F
Dew Point
36°F
11 PM
40°F
0%
7mph
WNW
Mostly Cloudy
Humidity
83%
Feels like
35°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

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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide