Johnstown 7-day weather forecast

Written by:
June 8, 2026
ESOlex // Shutterstock

Johnstown 7-day weather forecast

Stacker created the forecast for Johnstown, Pennsylvania using data from OpenWeather. This week's high is 79 °F on Tuesday, while the low is 50 °F on Tuesday. There are expected to be 0 sunny days and rain on 5 days this week.

There are currently no weather alerts.

Monday, June 15

- High of 73 °F, low of 56 °F (64% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:45 AM, sunset at 8:47 PM
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1 / 6
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Tuesday, June 16

- High of 79 °F, low of 50 °F (39% humidity)
- Partly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 5:45 AM, sunset at 8:47 PM
2 / 6
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Wednesday, June 17

- High of 76 °F, low of 57 °F (44% humidity)
- Mostly cloudy with a 100% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (7 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:45 AM, sunset at 8:47 PM
3 / 6
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Thursday, June 18

- High of 78 °F, low of 65 °F (59% humidity)
- Mostly cloudy with a 100% chance of rain (8 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Fresh breeze (20 mph wind)
- Sunrise at 5:45 AM, sunset at 8:48 PM
4 / 6
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Friday, June 19

- High of 69 °F, low of 56 °F (59% humidity)
- Overcast with a 30% chance of rain (0 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 5:45 AM, sunset at 8:48 PM
5 / 6
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Saturday, June 20

- High of 70 °F, low of 53 °F (50% humidity)
- Overcast with a 20% chance of rain (0 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 5:45 AM, sunset at 8:48 PM
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6 / 6
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Sunday, June 21

- High of 60 °F, low of 55 °F (97% humidity)
- Overcast with a 100% chance of rain (24 mm of rain)
- Gentle breeze (8 mph wind)
- Sunrise at 5:45 AM, sunset at 8:48 PM
- First quarter moon

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