Hourly Weather Forecast - Mertztown, PA

12 AM
36°F
0%
3mph
SSW
Mostly Cloudy
Humidity
65%
Feels like
34°F
Dew Point
26°F
1 AM
35°F
0%
3mph
SSW
Mostly Cloudy
Humidity
67%
Feels like
33°F
Dew Point
26°F
2 AM
35°F
0%
3mph
SSW
Mostly Cloudy
Humidity
69%
Feels like
35°F
Dew Point
26°F
3 AM
34°F
0%
3mph
SSW
Partly Cloudy
Humidity
71%
Feels like
34°F
Dew Point
26°F
4 AM
33°F
0%
2mph
SSW
Partly Cloudy
Humidity
72%
Feels like
33°F
Dew Point
26°F
5 AM
33°F
0%
2mph
SW
Partly Cloudy
Humidity
74%
Feels like
33°F
Dew Point
26°F
6 AM
33°F
0%
2mph
SSW
Partly Cloudy
Humidity
75%
Feels like
33°F
Dew Point
26°F
6:58 AM
7 AM
34°F
0%
2mph
SSW
Partly Cloudy
Humidity
75%
Feels like
34°F
Dew Point
27°F
8 AM
36°F
0%
2mph
SSW
Partly Cloudy
Humidity
72%
Feels like
36°F
Dew Point
28°F
9 AM
39°F
0%
3mph
SW
Mostly Sunny
Humidity
68%
Feels like
37°F
Dew Point
29°F
10 AM
43°F
0%
4mph
SW
Mostly Sunny
Humidity
63%
Feels like
40°F
Dew Point
31°F
11 AM
46°F
0%
5mph
SW
Mostly Sunny
Humidity
59%
Feels like
44°F
Dew Point
32°F
12 PM
49°F
10%
5mph
SW
Mostly Sunny
Humidity
55%
Feels like
47°F
Dew Point
33°F
1 PM
51°F
10%
5mph
SW
Partly Cloudy
Humidity
52%
Feels like
51°F
Dew Point
34°F
2 PM
53°F
10%
5mph
SW
Mostly Cloudy
Humidity
50%
Feels like
53°F
Dew Point
35°F
3 PM
55°F
10%
5mph
SW
Mostly Cloudy
Humidity
48%
Feels like
55°F
Dew Point
36°F
4 PM
55°F
10%
5mph
SW
Mostly Cloudy
Humidity
49%
Feels like
55°F
Dew Point
36°F
5 PM
54°F
10%
5mph
SW
Mostly Cloudy
Humidity
51%
Feels like
54°F
Dew Point
37°F
6 PM
53°F
20%
4mph
SW
Mostly Cloudy
Humidity
53%
Feels like
53°F
Dew Point
36°F
7 PM
50°F
20%
3mph
SW
Mostly Cloudy
Humidity
57%
Feels like
50°F
Dew Point
36°F
7:19 PM
8 PM
48°F
20%
2mph
SW
Mostly Cloudy
Humidity
64%
Feels like
48°F
Dew Point
37°F
9 PM
47°F
30%
2mph
SSW
30% Chance Rain Showers
Humidity
68%
Feels like
47°F
Dew Point
37°F
10 PM
45°F
30%
3mph
SSW
30% Chance Rain Showers
Humidity
70%
Feels like
45°F
Dew Point
36°F
11 PM
44°F
20%
3mph
SSW
Partly Cloudy
Humidity
74%
Feels like
43°F
Dew Point
36°F

Today's High Temperature Outlook

Early Spring Heat Wave Zaps Southwest

Much of the Southwest will observe record-breaking heat through the weekend, with high temperatures reminiscent of mid-summer!

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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