Hourly Weather Forecast - Mertztown, PA

12 AM
21°F
0%
5mph
W
Partly Cloudy
Humidity
68%
Feels like
14°F
Dew Point
12°F
1 AM
20°F
0%
4mph
W
Partly Cloudy
Humidity
69%
Feels like
14°F
Dew Point
12°F
2 AM
20°F
0%
4mph
WNW
Partly Cloudy
Humidity
71%
Feels like
13°F
Dew Point
12°F
3 AM
20°F
0%
4mph
WNW
Partly Cloudy
Humidity
71%
Feels like
14°F
Dew Point
12°F
4 AM
19°F
0%
4mph
WNW
Cloudy
Humidity
72%
Feels like
14°F
Dew Point
12°F
5 AM
19°F
0%
3mph
WNW
Cloudy
Humidity
73%
Feels like
14°F
Dew Point
12°F
6 AM
19°F
0%
3mph
W
Cloudy
Humidity
73%
Feels like
19°F
Dew Point
12°F
7 AM
19°F
0%
3mph
W
Cloudy
Humidity
72%
Feels like
19°F
Dew Point
11°F
7:26 AM
8 AM
20°F
0%
3mph
W
Cloudy
Humidity
68%
Feels like
20°F
Dew Point
11°F
9 AM
22°F
0%
3mph
W
Mostly Cloudy
Humidity
64%
Feels like
18°F
Dew Point
12°F
10 AM
24°F
0%
4mph
WNW
Mostly Cloudy
Humidity
61%
Feels like
19°F
Dew Point
13°F
11 AM
26°F
0%
4mph
WNW
Mostly Cloudy
Humidity
58%
Feels like
21°F
Dew Point
13°F
12 PM
28°F
0%
4mph
WNW
Cloudy
Humidity
55%
Feels like
24°F
Dew Point
14°F
1 PM
30°F
0%
3mph
WNW
Cloudy
Humidity
52%
Feels like
26°F
Dew Point
14°F
2 PM
31°F
0%
3mph
WNW
Cloudy
Humidity
50%
Feels like
31°F
Dew Point
14°F
3 PM
29°F
0%
2mph
W
Cloudy
Humidity
52%
Feels like
29°F
Dew Point
14°F
4 PM
28°F
0%
2mph
W
Cloudy
Humidity
56%
Feels like
28°F
Dew Point
14°F
4:48 PM
5 PM
28°F
0%
1mph
W
Cloudy
Humidity
58%
Feels like
28°F
Dew Point
15°F
6 PM
27°F
0%
1mph
WNW
Cloudy
Humidity
61%
Feels like
27°F
Dew Point
16°F
7 PM
27°F
0%
1mph
NW
Cloudy
Humidity
63%
Feels like
27°F
Dew Point
16°F
8 PM
27°F
0%
1mph
NNW
Cloudy
Humidity
65%
Feels like
27°F
Dew Point
16°F
9 PM
26°F
0%
1mph
NNW
Cloudy
Humidity
66%
Feels like
26°F
Dew Point
16°F
10 PM
26°F
0%
0mph
N
Cloudy
Humidity
67%
Feels like
26°F
Dew Point
16°F
11 PM
25°F
10%
0mph
N
Cloudy
Humidity
68%
Feels like
25°F
Dew Point
16°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