Hourly Weather Forecast - Grantham, PA

12 AM
45°F
10%
2mph
SSE
Mostly Cloudy
Humidity
72%
Feels like
45°F
Dew Point
37°F
1 AM
45°F
10%
3mph
SSE
Mostly Cloudy
Humidity
72%
Feels like
45°F
Dew Point
36°F
2 AM
45°F
10%
3mph
SSE
Mostly Cloudy
Humidity
72%
Feels like
43°F
Dew Point
36°F
3 AM
45°F
0%
4mph
SSE
Mostly Cloudy
Humidity
78%
Feels like
43°F
Dew Point
38°F
4 AM
44°F
0%
4mph
S
Mostly Cloudy
Humidity
81%
Feels like
42°F
Dew Point
39°F
5 AM
44°F
0%
4mph
S
Partly Cloudy
Humidity
89%
Feels like
41°F
Dew Point
41°F
6 AM
43°F
0%
4mph
S
Partly Cloudy
Humidity
92%
Feels like
41°F
Dew Point
41°F
7 AM
43°F
0%
4mph
S
Partly Cloudy
Humidity
97%
Feels like
41°F
Dew Point
42°F
7:08 AM
8 AM
44°F
0%
4mph
S
Foggy
Humidity
99%
Feels like
42°F
Dew Point
43°F
9 AM
46°F
0%
4mph
S
Partly Cloudy
Humidity
98%
Feels like
44°F
Dew Point
46°F
10 AM
51°F
0%
4mph
SSW
Partly Cloudy
Humidity
91%
Feels like
51°F
Dew Point
48°F
11 AM
55°F
0%
5mph
SSW
Partly Cloudy
Humidity
83%
Feels like
55°F
Dew Point
50°F
12 PM
59°F
0%
6mph
SSW
Partly Cloudy
Humidity
73%
Feels like
59°F
Dew Point
51°F
1 PM
63°F
0%
6mph
SSW
Partly Cloudy
Humidity
67%
Feels like
63°F
Dew Point
52°F
2 PM
67°F
0%
7mph
SW
Partly Cloudy
Humidity
62%
Feels like
67°F
Dew Point
53°F
3 PM
69°F
10%
7mph
SW
Mostly Sunny
Humidity
59%
Feels like
69°F
Dew Point
55°F
4 PM
71°F
10%
8mph
SSW
Partly Cloudy
Humidity
57%
Feels like
71°F
Dew Point
55°F
5 PM
71°F
20%
7mph
SSW
Partly Cloudy
Humidity
57%
Feels like
71°F
Dew Point
56°F
6 PM
71°F
30%
7mph
SW
30% Chance Rain Showers
Humidity
61%
Feels like
71°F
Dew Point
57°F
7 PM
69°F
40%
6mph
SW
40% Chance Rain Showers
Humidity
63%
Feels like
69°F
Dew Point
56°F
7:21 PM
8 PM
67°F
50%
4mph
SW
50% Chance Rain Showers
Humidity
72%
Feels like
67°F
Dew Point
57°F
9 PM
64°F
50%
4mph
WSW
50% Chance Rain Showers
Humidity
74%
Feels like
64°F
Dew Point
56°F
10 PM
63°F
60%
4mph
WNW
60% Chance Rain Showers
Humidity
75%
Feels like
63°F
Dew Point
54°F
11 PM
60°F
60%
4mph
WNW
60% Chance Rain Showers
Humidity
80%
Feels like
60°F
Dew Point
54°F

Today's High Temperature Outlook

Dangerous Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

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