Hourly Weather Forecast - Mertztown, PA

10 AM
33°F
10%
4mph
S
Cloudy
Humidity
83%
Feels like
28°F
Dew Point
28°F
11 AM
34°F
10%
5mph
S
Cloudy
Humidity
82%
Feels like
29°F
Dew Point
29°F
12 PM
35°F
30%
6mph
SSW
30% Chance of Light Rain
Humidity
79%
Feels like
30°F
Dew Point
29°F
1 PM
36°F
40%
6mph
SSW
40% Chance of Light Rain
Humidity
82%
Feels like
30°F
Dew Point
31°F
2 PM
35°F
80%
6mph
SSW
80% Chance of Light Rain
Humidity
87%
Feels like
30°F
Dew Point
32°F
3 PM
35°F
70%
6mph
SSW
70% Chance Frozen Mix
Humidity
92%
Feels like
30°F
Dew Point
33°F
4 PM
34°F
70%
6mph
SSW
70% Chance of Rain
Humidity
98%
Feels like
29°F
Dew Point
34°F
4:35 PM
5 PM
35°F
70%
6mph
SSW
70% Chance Frozen Mix
Humidity
99%
Feels like
29°F
Dew Point
34°F
6 PM
35°F
50%
6mph
SSW
50% Chance Frozen Mix
Humidity
99%
Feels like
30°F
Dew Point
35°F
7 PM
35°F
30%
6mph
SSW
30% Chance Frozen Mix
Humidity
92%
Feels like
30°F
Dew Point
33°F
8 PM
36°F
10%
7mph
SW
Mostly Cloudy
Humidity
93%
Feels like
30°F
Dew Point
34°F
9 PM
36°F
10%
7mph
SW
Mostly Cloudy
Humidity
91%
Feels like
31°F
Dew Point
34°F
10 PM
36°F
0%
7mph
WSW
Partly Cloudy
Humidity
90%
Feels like
30°F
Dew Point
34°F
11 PM
36°F
0%
8mph
WSW
Partly Cloudy
Humidity
88%
Feels like
30°F
Dew Point
33°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide