Johnstown 7-day weather forecast

Written by:
March 9, 2026
ESOlex // Shutterstock

Johnstown 7-day weather forecast

Stacker created the forecast for Johnstown, Pennsylvania using data from OpenWeather. This week's high is 67 °F on Monday, while the low is 13 °F on Wednesday. There are expected to be 0 sunny days, snow on 2 days, and 5 days of rain this week.

NWS State College PA has issued a wind advisory until Monday at 08:00 AM.

Monday, March 16

- High of 67 °F, low of 28 °F (91% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Fresh breeze (21 mph wind)
- Sunrise at 7:25 AM, sunset at 7:22 PM
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Tuesday, March 17

- High of 27 °F, low of 16 °F (71% humidity)
- Overcast with a 100% chance of snow (2 mm of snow)
- Moderate risk of harm from sun exposure (3 UV index)
- Fresh breeze (19 mph wind)
- Sunrise at 7:24 AM, sunset at 7:24 PM
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Wednesday, March 18

- High of 34 °F, low of 13 °F (58% humidity)
- Overcast with a 100% chance of snow (2 mm of snow)
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (7 mph wind)
- Sunrise at 7:22 AM, sunset at 7:25 PM
- New moon
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Marian Weyo // Shutterstock

Thursday, March 19

- High of 40 °F, low of 31 °F (99% humidity)
- Overcast with a 100% chance of rain (0 mm of rain)
- Light breeze (4 mph wind)
- Sunrise at 7:20 AM, sunset at 7:26 PM
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Friday, March 20

- High of 52 °F, low of 33 °F (98% humidity)
- Overcast with a 100% chance of rain (12 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 7:19 AM, sunset at 7:27 PM
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Saturday, March 21

- High of 50 °F, low of 37 °F (88% humidity)
- Overcast with a 80% chance of rain (1 mm of rain)
- Light breeze (7 mph wind)
- Sunrise at 7:17 AM, sunset at 7:28 PM
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Alex Stemmer // Shutterstock

Sunday, March 22

- High of 60 °F, low of 34 °F (94% humidity)
- Overcast with a 100% chance of rain (11 mm of rain)
- Fresh breeze (19 mph wind)
- Sunrise at 7:15 AM, sunset at 7:29 PM

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