Johnstown 7-day weather forecast

Written by:
August 11, 2025
ESOlex // Shutterstock

Johnstown 7-day weather forecast

Stacker created the forecast for Johnstown, Pennsylvania using data from OpenWeather. This week's high is 92 °F on Tuesday, while the low is 60 °F on Monday. There are expected to be 6 sunny days and rain on 2 days this week.

There are currently no weather alerts.

Monday, August 11

- High of 88 °F, low of 60 °F (45% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:23 AM, sunset at 8:18 PM
1 / 6
logoboom // Shutterstock

Tuesday, August 12

- High of 92 °F, low of 66 °F (40% humidity)
- Mostly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:24 AM, sunset at 8:17 PM
2 / 6
otsphoto // Shutterstock

Wednesday, August 13

- High of 83 °F, low of 68 °F (65% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:25 AM, sunset at 8:16 PM
3 / 6
Leena Robinson // Shutterstock

Thursday, August 14

- High of 87 °F, low of 67 °F (44% humidity)
- Sunny with a 85% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:26 AM, sunset at 8:14 PM
4 / 6
Andrzej Kubik // Shutterstock

Friday, August 15

- High of 88 °F, low of 68 °F (40% humidity)
- Sunny with a 0% chance of rain
- Gentle breeze (9 mph wind)
- Sunrise at 6:27 AM, sunset at 8:13 PM
5 / 6
GP PIXSTOCK // Shutterstock

Saturday, August 16

- High of 91 °F, low of 68 °F (37% humidity)
- Sunny with a 0% chance of rain
- Light breeze (5 mph wind)
- Sunrise at 6:28 AM, sunset at 8:12 PM
- Last quarter moon
6 / 6
Flamingo Images // Shutterstock

Sunday, August 17

- High of 92 °F, low of 70 °F (38% humidity)
- Mostly sunny with a 0% chance of rain
- Light breeze (7 mph wind)
- Sunrise at 6:28 AM, sunset at 8:10 PM

Trending Now