Hourly Weather Forecast - Mertztown, PA

12 AM
26°F
10%
1mph
SSE
Cloudy
Humidity
80%
Feels like
26°F
Dew Point
20°F
1 AM
26°F
10%
1mph
SSE
Cloudy
Humidity
82%
Feels like
26°F
Dew Point
21°F
2 AM
26°F
10%
1mph
SSE
Cloudy
Humidity
85%
Feels like
26°F
Dew Point
22°F
3 AM
27°F
10%
1mph
SSE
Cloudy
Humidity
82%
Feels like
27°F
Dew Point
23°F
4 AM
27°F
10%
1mph
SE
Mostly Cloudy
Humidity
84%
Feels like
27°F
Dew Point
23°F
5 AM
27°F
10%
1mph
SE
Cloudy
Humidity
86%
Feels like
27°F
Dew Point
24°F
6 AM
27°F
10%
1mph
ESE
Cloudy
Humidity
85%
Feels like
27°F
Dew Point
23°F
7 AM
24°F
10%
1mph
ESE
Cloudy
Humidity
86%
Feels like
24°F
Dew Point
21°F
7:26 AM
8 AM
24°F
10%
1mph
S
Cloudy
Humidity
87%
Feels like
24°F
Dew Point
21°F
9 AM
26°F
10%
2mph
SW
Cloudy
Humidity
80%
Feels like
26°F
Dew Point
21°F
10 AM
28°F
10%
2mph
SW
Cloudy
Humidity
76%
Feels like
28°F
Dew Point
22°F
11 AM
31°F
10%
2mph
SW
Cloudy
Humidity
72%
Feels like
31°F
Dew Point
23°F
12 PM
34°F
10%
2mph
WSW
Cloudy
Humidity
69%
Feels like
34°F
Dew Point
24°F
1 PM
36°F
10%
2mph
SW
Cloudy
Humidity
66%
Feels like
36°F
Dew Point
26°F
2 PM
37°F
10%
1mph
SW
Cloudy
Humidity
64%
Feels like
37°F
Dew Point
26°F
3 PM
36°F
10%
1mph
SSW
Cloudy
Humidity
67%
Feels like
36°F
Dew Point
26°F
4 PM
34°F
10%
1mph
S
Cloudy
Humidity
73%
Feels like
34°F
Dew Point
26°F
4:50 PM
5 PM
31°F
10%
1mph
S
Cloudy
Humidity
79%
Feels like
31°F
Dew Point
26°F
6 PM
29°F
30%
1mph
SSE
30% Chance of Flurries
Humidity
86%
Feels like
29°F
Dew Point
26°F
7 PM
28°F
30%
1mph
SSE
30% Chance of Snow
Humidity
89%
Feels like
28°F
Dew Point
26°F
8 PM
28°F
30%
1mph
SSE
30 % Chance of Heavy Snow
Humidity
89%
Feels like
28°F
Dew Point
25°F
9 PM
28°F
30%
1mph
SSE
30 % Chance of Heavy Snow
Humidity
91%
Feels like
28°F
Dew Point
25°F
10 PM
27°F
30%
1mph
SSE
30 % Chance of Heavy Snow
Humidity
92%
Feels like
27°F
Dew Point
25°F
11 PM
26°F
20%
1mph
SSE
Cloudy
Humidity
93%
Feels like
26°F
Dew Point
24°F

Rain and Snow Totals Through Friday

2026 Opens with Heavy Rain in California

Rainfall continues to postpone 2026 fireworks until nighttime in much of California.

Thursday's Weather Outlook

New Year's Day and Extended Weekend Weather Outlook

St. Louis Tornado - May 16th, 2025

2025 Year in Review: Billion-Dollar Disasters From May through June

EF3 tornado damage near Plantersville, Alabama

2025 Year in Review: Billion-Dollar Disasters From February Through April

Photos and videos from the Palisades Fire that started in the City of Los Angeles, January 8, 2025. (CAL FIRE_Official via Wikimedia Commons)

2025 Year in Review: Billion Dollar Disasters - The California Wildfires

Large wall of dust approaching Phoenix Sky Harbor Airport at around 5:30 PM MST (Photo credit: Mike Olbinski via NWS)

2025 Year in Review: Extreme Weather - July Through December

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide