Hourly Weather Forecast - Mertztown, PA

12 AM
17°F
10%
7mph
WNW
Mostly Clear
Humidity
64%
Feels like
8°F
Dew Point
7°F
1 AM
16°F
10%
7mph
NW
Clear
Humidity
66%
Feels like
6°F
Dew Point
6°F
2 AM
15°F
10%
7mph
NW
Clear
Humidity
67%
Feels like
5°F
Dew Point
6°F
3 AM
14°F
10%
6mph
NW
Mostly Clear
Humidity
68%
Feels like
5°F
Dew Point
5°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy, Flooding Rain Impacts 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