Hourly Weather Forecast - Grantham, PA

12 AM
25°F
0%
7mph
NW
Clear
Humidity
57%
Feels like
17°F
Dew Point
12°F
1 AM
24°F
0%
6mph
NW
Clear
Humidity
59%
Feels like
17°F
Dew Point
12°F
2 AM
24°F
0%
6mph
NW
Clear
Humidity
60%
Feels like
16°F
Dew Point
12°F
3 AM
23°F
0%
6mph
NW
Clear
Humidity
62%
Feels like
16°F
Dew Point
12°F
4 AM
22°F
0%
5mph
NW
Clear
Humidity
66%
Feels like
16°F
Dew Point
13°F
5 AM
22°F
0%
4mph
WNW
Clear
Humidity
69%
Feels like
16°F
Dew Point
13°F
6 AM
21°F
0%
4mph
WNW
Clear
Humidity
70%
Feels like
16°F
Dew Point
13°F
7 AM
21°F
0%
3mph
WNW
Clear
Humidity
70%
Feels like
21°F
Dew Point
13°F
7:27 AM
8 AM
23°F
0%
3mph
WNW
Sunny
Humidity
67%
Feels like
23°F
Dew Point
13°F
9 AM
25°F
0%
3mph
WNW
Mostly Sunny
Humidity
62%
Feels like
21°F
Dew Point
14°F
10 AM
27°F
0%
3mph
WNW
Mostly Sunny
Humidity
55%
Feels like
23°F
Dew Point
13°F
11 AM
29°F
0%
3mph
WNW
Partly Cloudy
Humidity
51%
Feels like
29°F
Dew Point
13°F
12 PM
30°F
0%
2mph
WNW
Partly Cloudy
Humidity
47%
Feels like
30°F
Dew Point
13°F
1 PM
32°F
0%
2mph
W
Partly Cloudy
Humidity
46%
Feels like
32°F
Dew Point
13°F
2 PM
33°F
0%
2mph
W
Partly Cloudy
Humidity
46%
Feels like
33°F
Dew Point
14°F
3 PM
33°F
0%
2mph
WSW
Partly Cloudy
Humidity
47%
Feels like
33°F
Dew Point
15°F
4 PM
32°F
10%
1mph
SW
Partly Cloudy
Humidity
52%
Feels like
32°F
Dew Point
16°F
4:45 PM
5 PM
31°F
10%
1mph
SW
Partly Cloudy
Humidity
55%
Feels like
31°F
Dew Point
17°F
6 PM
30°F
10%
1mph
SSW
Partly Cloudy
Humidity
57%
Feels like
30°F
Dew Point
17°F
7 PM
30°F
20%
2mph
SSW
Partly Cloudy
Humidity
58%
Feels like
30°F
Dew Point
17°F
8 PM
29°F
10%
2mph
S
Mostly Cloudy
Humidity
59%
Feels like
29°F
Dew Point
17°F
9 PM
29°F
10%
2mph
S
Mostly Cloudy
Humidity
61%
Feels like
29°F
Dew Point
17°F
10 PM
30°F
10%
2mph
S
Cloudy
Humidity
62%
Feels like
30°F
Dew Point
18°F
11 PM
30°F
20%
2mph
S
Cloudy
Humidity
63%
Feels like
30°F
Dew Point
19°F

Forecast Wind Gusts For Today

Storm Pummels Northeast U.S.

A strong disturbance will gradually exit the Northeast tonight while delivering rain and thunderstorms, snow and strong wind gusts.

Rain And Snow Totals Through Tonight

Atmospheric River Impacts Pacific Northwest

NOAA, NCDC

White Christmas? What Are The Odds

Weekend Weather Outlook

Weekend Weather Outlook

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