Hourly Weather Forecast - Mertztown, PA

12 AM
44°F
10%
2mph
ESE
Mostly Cloudy
Humidity
64%
Feels like
44°F
Dew Point
33°F
1 AM
44°F
10%
3mph
SE
Mostly Cloudy
Humidity
66%
Feels like
44°F
Dew Point
33°F
2 AM
43°F
10%
3mph
SSE
Partly Cloudy
Humidity
70%
Feels like
43°F
Dew Point
34°F
3 AM
42°F
10%
3mph
SSE
Mostly Cloudy
Humidity
75%
Feels like
42°F
Dew Point
35°F
4 AM
42°F
10%
2mph
SSE
Mostly Cloudy
Humidity
78%
Feels like
42°F
Dew Point
35°F
5 AM
41°F
10%
2mph
SSE
Cloudy
Humidity
83%
Feels like
41°F
Dew Point
36°F
6 AM
41°F
10%
2mph
S
Cloudy
Humidity
84%
Feels like
41°F
Dew Point
37°F
7 AM
42°F
10%
2mph
S
Cloudy
Humidity
85%
Feels like
42°F
Dew Point
38°F
7:03 AM
8 AM
44°F
10%
3mph
S
Mostly Cloudy
Humidity
83%
Feels like
44°F
Dew Point
39°F
9 AM
47°F
10%
3mph
SSW
Cloudy
Humidity
80%
Feels like
47°F
Dew Point
41°F
10 AM
50°F
10%
3mph
SSW
Cloudy
Humidity
77%
Feels like
49°F
Dew Point
43°F
11 AM
53°F
10%
4mph
SW
Cloudy
Humidity
72%
Feels like
53°F
Dew Point
45°F
12 PM
57°F
10%
5mph
SW
Mostly Cloudy
Humidity
67%
Feels like
57°F
Dew Point
46°F
1 PM
61°F
10%
5mph
SW
Mostly Cloudy
Humidity
62%
Feels like
61°F
Dew Point
48°F
2 PM
65°F
20%
6mph
SW
Partly Cloudy
Humidity
59%
Feels like
65°F
Dew Point
50°F
3 PM
67°F
20%
5mph
SW
Partly Cloudy
Humidity
56%
Feels like
67°F
Dew Point
51°F
4 PM
69°F
30%
5mph
SW
30% Chance Rain Showers
Humidity
56%
Feels like
69°F
Dew Point
52°F
5 PM
68°F
50%
5mph
SSW
50% Chance Rain Showers
Humidity
58%
Feels like
68°F
Dew Point
53°F
6 PM
67°F
60%
4mph
SW
60% Chance of Light Rain
Humidity
64%
Feels like
67°F
Dew Point
54°F
7 PM
64°F
60%
4mph
WNW
60% Chance of Light Rain
Humidity
72%
Feels like
64°F
Dew Point
55°F
7:16 PM
8 PM
61°F
50%
3mph
NNW
50% Chance of Rain
Humidity
81%
Feels like
61°F
Dew Point
55°F
9 PM
57°F
50%
3mph
NNW
50% Chance of Rain
Humidity
90%
Feels like
57°F
Dew Point
54°F
10 PM
55°F
70%
3mph
NNW
70% Chance Rain Showers
Humidity
94%
Feels like
55°F
Dew Point
53°F
11 PM
53°F
70%
3mph
NNW
70% Chance Rain Showers
Humidity
96%
Feels like
53°F
Dew Point
52°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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