Johnstown 7-day weather forecast

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

Stacker created the forecast for Johnstown, Pennsylvania using data from OpenWeather. This week's high is 74 °F on Tuesday, while the low is 36 °F on Monday. There are expected to be 0 sunny days and rain on 6 days this week.

There are currently no weather alerts.

Monday, May 4

- High of 71 °F, low of 36 °F (52% humidity)
- Partly sunny with a 100% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:11 AM, sunset at 8:13 PM
1 / 6
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Tuesday, May 5

- High of 74 °F, low of 55 °F (55% humidity)
- Overcast with a 75% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 6:10 AM, sunset at 8:14 PM
2 / 6
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Wednesday, May 6

- High of 58 °F, low of 48 °F (97% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 6:09 AM, sunset at 8:15 PM
3 / 6
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Thursday, May 7

- High of 51 °F, low of 40 °F (79% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Moderate risk of harm from sun exposure (2 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:07 AM, sunset at 8:16 PM
4 / 6
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Friday, May 8

- High of 50 °F, low of 38 °F (89% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Moderate breeze (14 mph wind)
- Sunrise at 6:06 AM, sunset at 8:17 PM
5 / 6
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Saturday, May 9

- High of 60 °F, low of 42 °F (80% humidity)
- Overcast with a 100% chance of rain (5 mm of rain)
- Moderate breeze (14 mph wind)
- Sunrise at 6:05 AM, sunset at 8:18 PM
- Last quarter moon
6 / 6
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Sunday, May 10

- High of 68 °F, low of 41 °F (37% humidity)
- Overcast with a 0% chance of rain
- Light breeze (7 mph wind)
- Sunrise at 6:04 AM, sunset at 8:19 PM

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