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 86 °F on Saturday, while the low is 65 °F on Saturday. There are expected to be 0 sunny days and rain on 7 days this week.

NWS State College PA has issued a flood watch until Tuesday at 08:00 PM.

Monday, July 6

- High of 81 °F, low of 68 °F (88% humidity)
- Overcast with a 100% chance of rain (15 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (5 mph wind)
- Sunrise at 5:52 AM, sunset at 8:48 PM
1 / 6
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Tuesday, July 7

- High of 76 °F, low of 67 °F (84% humidity)
- Overcast with a 100% chance of rain (10 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (5 mph wind)
- Sunrise at 5:52 AM, sunset at 8:48 PM
- Last quarter moon
2 / 6
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Wednesday, July 8

- High of 81 °F, low of 68 °F (73% humidity)
- Mostly cloudy with a 100% chance of rain (2 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 5:53 AM, sunset at 8:47 PM
3 / 6
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Thursday, July 9

- High of 78 °F, low of 66 °F (83% humidity)
- Partly sunny with a 100% chance of rain (8 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (5 mph wind)
- Sunrise at 5:53 AM, sunset at 8:47 PM
4 / 6
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Friday, July 10

- High of 74 °F, low of 67 °F (98% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Moderate breeze (13 mph wind)
- Sunrise at 5:54 AM, sunset at 8:47 PM
5 / 6
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Saturday, July 11

- High of 86 °F, low of 65 °F (43% humidity)
- Overcast with a 22% chance of rain (0 mm of rain)
- Light breeze (4 mph wind)
- Sunrise at 5:55 AM, sunset at 8:46 PM
6 / 6
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Sunday, July 12

- High of 73 °F, low of 66 °F (100% humidity)
- Overcast with a 100% chance of rain (20 mm of rain)
- Light breeze (4 mph wind)
- Sunrise at 5:56 AM, sunset at 8:46 PM

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