Johnstown 7-day weather forecast

Written by:
June 8, 2026
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Johnstown 7-day weather forecast

created the forecast for Johnstown, Pennsylvania using data from . This week's high is 87 掳F on Friday, while the low is 62 掳F on Tuesday. There are expected to be 2 sunny days and rain on 6 days this week.

There are currently no weather alerts.

Monday, August 3

- High of 85 掳F, low of 67 掳F (60% humidity)
- Overcast with a 100% chance of rain (10 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:15 AM, sunset at 8:28 PM
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1 / 6
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Tuesday, August 4

- High of 85 掳F, low of 62 掳F (50% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:16 AM, sunset at 8:27 PM
2 / 6
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Wednesday, August 5

- High of 82 掳F, low of 66 掳F (65% humidity)
- Overcast with a 35% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:17 AM, sunset at 8:26 PM
- Last quarter moon
3 / 6
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Thursday, August 6

- High of 84 掳F, low of 68 掳F (64% humidity)
- Mostly sunny with a 100% chance of rain (15 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:17 AM, sunset at 8:25 PM
4 / 6
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Friday, August 7

- High of 87 掳F, low of 68 掳F (91% humidity)
- Overcast with a 100% chance of rain (11 mm of rain)
- Light breeze (6 mph wind)
- Sunrise at 6:18 AM, sunset at 8:23 PM
5 / 6
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Saturday, August 8

- High of 82 掳F, low of 69 掳F (68% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Gentle breeze (8 mph wind)
- Sunrise at 6:19 AM, sunset at 8:22 PM
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6 / 6
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Sunday, August 9

- High of 87 掳F, low of 66 掳F (54% humidity)
- Partly cloudy with a 27% chance of rain (0 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 6:20 AM, sunset at 8:21 PM

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