Weather forecast for 10 days
Mertztown, PA

Weather forecast for the weekend

Saturday, Jun 21.

Partly Cloudy
5:30 am

8:38 pm
EDT
Partly Cloudy
90°F / 70°F
  • Wind: 7mph WSW
  • Humidity: 61%
  • Precip. probability: 6%
  • Precipitation: 0"
  • UV index: 9
On Saturday, in Mertztown, changing cloud patterns will allow for periods of sunshine.
A temperature range of a hot 89.6°F to an agreeable 69.8°F is expected.
On Saturday, the temperature will resemble July's climate with a high near 83.8°F.
Sunrise will be at 5:30 am and sunset at 8:38 pm; the daylight will last for 15h and 7min.

Sunday, Jun 22.

Partly Cloudy
5:31 am

8:38 pm
EDT
Partly Cloudy
90°F / 73°F
  • Wind: 7mph WSW
  • Humidity: 66%
  • Precip. probability: 7%
  • Precipitation: 0"
  • UV index: 8
On Sunday, June 22, thin clouds will pass through at times, but overall, it will remain bright.
The temperature is anticipated to vary between a blazing 89.6°F and a moderately hot 73.4°F.
The projected high resembles July more than June, matching 83.8°F rather than 77.5°F.
Sunrise will be at 5:31 am and sunset at 8:38 pm; the daylight will last for 15h and 7min.

Frequently asked questions

What is the weather forecast for Mertztown for Saturday?
On Saturday, moments of sunshine will break through the patchy clouds.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 89.6°F, while the lowest temperature will be 69.8°F.
What is the weather forecast for Mertztown for Sunday?
On Sunday, high-altitude clouds may scatter across the sky, but the sun will still shine.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 89.6°F, while the lowest temperature will be 73.4°F.
What is the weather forecast for Mertztown for the next ten days?
In Mertztown, a combination of cloudy, sunny and turbulent weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is expected on next Thursday through next Saturday in Mertztown. With light precipitation of 0.24", next Saturday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 80.6°F and 96.8°F, as the minimum temperature will vary between 62.6°F and 75.2°F.
Combining with the humidity, the maximum feel-like temperature will vary between 84.2°F and 118.4°F.
What will be the hottest and the coldest days?
The hottest days will be Monday and Tuesday, with a maximum of 96.8°F. With a maximum temperature of 80.6°F, next Friday will be the coldest day.

Long-term weather forecast

ThuJun 19.
  • 86°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph SW
  • Humidity: 61%
  • UV index: 9
  • Precip. probability: 15%
  • Precipitation: 0"
  • 5:30 am 8:37 pm EDT
FriJun 20.
  • 82°F
  • 64°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph W
  • Humidity: 60%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:30 am 8:38 pm EDT
SatJun 21.
  • 90°F
  • 70°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph WSW
  • Humidity: 61%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:30 am 8:38 pm EDT
SunJun 22.
  • 90°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph WSW
  • Humidity: 66%
  • UV index: 8
  • Precip. probability: 7%
  • Precipitation: 0"
  • 5:31 am 8:38 pm EDT
MonJun 23.
  • 97°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Wind: 6mph WNW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:31 am 8:38 pm EDT
TueJun 24.
  • 97°F
  • 75°F
Sunny
Sunny
  • Wind: 7mph WNW
  • Humidity: 55%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:31 am 8:38 pm EDT
WedJun 25.
  • 95°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph NW
  • Humidity: 57%
  • UV index: 9
  • Precip. probability: 23%
  • Precipitation: 0"
  • 5:32 am 8:38 pm EDT
ThuJun 26.
  • 91°F
  • 66°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 6mph SSW
  • Humidity: 66%
  • UV index: 9
  • Precip. probability: 52%
  • Precipitation: 0.2"
  • 5:32 am 8:38 pm EDT
FriJun 27.
  • 81°F
  • 66°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 7mph S
  • Humidity: 75%
  • UV index: 9
  • Precip. probability: 47%
  • Precipitation: 0.2"
  • 5:32 am 8:38 pm EDT
SatJun 28.
  • 84°F
  • 66°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 6mph WSW
  • Humidity: 69%
  • UV index: 9
  • Precip. probability: 54%
  • Precipitation: 0.24"
  • 5:33 am 8:38 pm EDT
gloomy, sunny and thunderstorm-prone weather is anticipated.
Rainfall is forecasted for next Thursday through next Saturday.
There will be a considerable variation in temperature in the next ten days. Forecast highs will fluctuate between 80.6°F and 96.8°F, while the lowest nightly temperature differences will be also quite pronounced, as the lowest temperatures will be recorded between 62.6°F and 75.2°F.
The hottest days will be Monday and Tuesday, with a maximum of 96.8°F; the lowest daytime temperature of the period will be reached on next Friday, peaking at 80.6°F.
Taking the humidity into consideration, the maximum feel-like temperature may increase vastly and vary between 84.2°F and a dangerously hot 118.4°F.
Updated: Jun 19, 2025 @ 15:42:08 UTC
Published by: Weather U.S. | About Us
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