Weather forecast for 10 days
Johnstown, PA

Weather forecast for the weekend

Saturday, May 3.

Scattered Thunderstorms
6:10 am

8:14 pm
EDT
Scattered Thunderstorms
68°F / 59°F
  • Wind: 8mph SW
  • Humidity: 80%
  • Precip. probability: 78%
  • Precipitation: 0.75"
  • UV index: 5
Tomorrow, in Johnstown, there will be scattered thunderstorms, which could cause some localized disruption.
The chance of rain is high, and precipitation will be moderate. Minor temperature shifts are anticipated, peaking at a maximum of an agreeable 68°F and dropping to a minimum of a mild 59°F.
Tomorrow, the forecasted peak temperature is expected to mirror May's average high of 68°F.
Sunrise will be at 6:10 am and sunset at 8:14 pm; tomorrow's daylight will last for 14h and 4min.

Sunday, May 4.

Scattered Thunderstorms
6:09 am

8:15 pm
EDT
Scattered Thunderstorms
68°F / 59°F
  • Wind: 8mph SE
  • Humidity: 85%
  • Precip. probability: 54%
  • Precipitation: 0.39"
  • UV index: 3
On Sunday, May 4, expect scattered thunderstorms with occasional breaks in the rain.
The likelihood of precipitation is high. However, the rain will be light. Modest temperature shifts from a high of an agreeable 68°F to a low of a moderate 59°F are predicted.
May's usual high of 68°F is predicted to be matched by the day’s maximum temperature.
Sunrise will be at 6:09 am and sunset at 8:15 pm; the daylight will last for 14h and 7min.

Frequently asked questions

What is the weather forecast for Johnstown for tomorrow?
Tomorrow, in Johnstown, scattered thunderstorms are likely, with brief breaks between the stormy periods.
Will it rain tomorrow?
Moderate precipitation of 0.75" is expected. The possibility of rainfall is 78%.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 59°F.
The highest temperature will be in line with the average maximum of 68°F in May. The lowest temperature tomorrow will be significantly higher than the average low of 48.7°F.
When are sunrise and sunset tomorrow?
On Saturday, in Johnstown, sunrise will be at 6:10 am and sunset at 8:14 pm (EDT).
How many hours of daylight will Johnstown have tomorrow?
Tomorrow, the daylight will last for 14h and 4min.
What is the weather forecast for Johnstown for Sunday?
On Sunday, in Johnstown, scattered thunderstorms are forecasted, bringing possible lightning and brief downpours.
Will it rain on Sunday?
Light precipitation of 0.39" is expected on Sunday. The chance of rainfall is 54%.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 68°F, while the lowest temperature will be 59°F.
What is the weather forecast for Johnstown for the next ten days?
In Johnstown, a combination of lightning-active and overcast weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rain is predicted for Friday through Tuesday in Johnstown. With moderate precipitation of 0.75", Saturday will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will range between 64.4°F and 75.2°F, as the minimum temperature will range between 46.4°F and 60.8°F.
What will be the warmest and the coldest days?
Today is the warmest day, with a maximum temperature of 75.2°F. With a maximum temperature of 64.4°F, Tuesday will be the coldest day.

Long-term weather forecast

FriMay 2.
  • 75°F
  • 61°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 14mph WSW
  • Humidity: 68%
  • UV index: 6
  • Precip. probability: 37%
  • Precipitation: 0.12"
  • 6:11 am 8:13 pm EDT
SatMay 3.
  • 68°F
  • 59°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 8mph SW
  • Humidity: 80%
  • UV index: 5
  • Precip. probability: 78%
  • Precipitation: 0.75"
  • 6:10 am 8:14 pm EDT
SunMay 4.
  • 68°F
  • 59°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 8mph SE
  • Humidity: 85%
  • UV index: 3
  • Precip. probability: 54%
  • Precipitation: 0.39"
  • 6:09 am 8:15 pm EDT
MonMay 5.
  • 70°F
  • 57°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 12mph SE
  • Humidity: 76%
  • UV index: 8
  • Precip. probability: 52%
  • Precipitation: 0.31"
  • 6:07 am 8:16 pm EDT
TueMay 6.
  • 64°F
  • 52°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 9mph WSW
  • Humidity: 70%
  • UV index: 7
  • Precip. probability: 43%
  • Precipitation: 0.12"
  • 6:06 am 8:17 pm EDT
WedMay 7.
  • 70°F
  • 55°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph W
  • Humidity: 64%
  • UV index: 5
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:05 am 8:18 pm EDT
ThuMay 8.
  • 68°F
  • 46°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph NW
  • Humidity: 66%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:04 am 8:19 pm EDT
FriMay 9.
  • 68°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph ESE
  • Humidity: 51%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:03 am 8:20 pm EDT
SatMay 10.
  • 70°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SSE
  • Humidity: 44%
  • UV index: 6
  • Precip. probability: 19%
  • Precipitation: 0"
  • 6:02 am 8:21 pm EDT
SunMay 11.
  • 70°F
  • 57°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph S
  • Humidity: 60%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:01 am 8:22 pm EDT
In the days ahead, a combination of lightning-active and gloomy weather is expected.
Rain is predicted for Friday through Tuesday.
In the upcoming days, the highest temperature will vary between 64.4°F and 75.2°F, while the nightly low temperatures will show a considerable swing, as the lowest temperatures will be recorded between 46.4°F and 60.8°F.
Today is the warmest day, with a maximum temperature of 75.2°F; the lowest daytime temperature of the period will be reached on Tuesday, peaking at 64.4°F.
Updated: May 2, 2025 @ 12:29:52 UTC
Published by: Weather U.S. | About Us
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