Johnstown 7-day weather forecast

Written by:
March 23, 2026
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Johnstown 7-day weather forecast

created the forecast for Johnstown, Pennsylvania using data from . This week's high is 80 掳F on Friday, while the low is 47 掳F on Tuesday. There are expected to be 3 sunny days and rain on 3 days this week.

There are currently no weather alerts.

Monday, June 1

- High of 73 掳F, low of 49 掳F (39% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:48 AM, sunset at 8:39 PM
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1 / 6
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Tuesday, June 2

- High of 72 掳F, low of 47 掳F (40% humidity)
- Sunny with a 62% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:47 AM, sunset at 8:39 PM
2 / 6
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Wednesday, June 3

- High of 76 掳F, low of 48 掳F (36% humidity)
- Mostly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:47 AM, sunset at 8:40 PM
3 / 6
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Thursday, June 4

- High of 79 掳F, low of 53 掳F (39% humidity)
- Fair with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:46 AM, sunset at 8:41 PM
4 / 6
Cari Rubin Photography // Shutterstock

Friday, June 5

- High of 80 掳F, low of 56 掳F (45% humidity)
- Mostly cloudy with a 0% chance of rain
- Gentle breeze (11 mph wind)
- Sunrise at 5:46 AM, sunset at 8:42 PM
5 / 6
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Saturday, June 6

- High of 76 掳F, low of 60 掳F (73% humidity)
- Overcast with a 50% chance of rain (0 mm of rain)
- Gentle breeze (11 mph wind)
- Sunrise at 5:46 AM, sunset at 8:42 PM
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6 / 6
Dmitry Naumov // Shutterstock

Sunday, June 7

- High of 72 掳F, low of 63 掳F (98% humidity)
- Overcast with a 100% chance of rain (21 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 5:46 AM, sunset at 8:43 PM

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