Johnstown (PA)
August
Weather in Johnstown, Pennsylvania for August 2026
Your guide to Johnstown weather in August - trends and predictions
In general, the average temperature in Johnstown at the beginning of August is 23 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.6 °F by the end of August.
Johnstown experiences moderate rainfall in August, with an average of 7 rainy days and a total precipitation of 121.8 mm.
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Temperatures
Rain 🌧️
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24
Dry days
7
Rainy days
0
Snow days
23°/15°
Temperatures
13 km/h
Avg max wind
79 %
Avg humidity
Johnstown Weather August
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Temperatures trend during August in Johnstown
See the weather trend as well as the moving average line
August weather in Johnstown day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Overcast | 21° /17° | 23.5 mm | 3 | |
| Aug. 2 | Overcast | 22° /10° | 0 mm | 12 | |
| Aug. 3 |  Partly cloudy | 26° /12° | 0 mm | 11 | |
| Aug. 4 |  Sunny | 27° /12° | 0 mm | 11 | |
| Aug. 5 | Overcast | 23° /15° | 0 mm | 3 | |
| Aug. 6 | Overcast | 19° /15° | 0 mm | 2 | |
| Aug. 7 | Overcast | 23° /17° | 0 mm | 10 | |
| Aug. 8 |  Mist | 24° /17° | 0 mm | 8 | |
| Aug. 9 | Mist | 25° /16° | 0 mm | 6 | |
| Aug. 10 | Mist | 29° /14° | 0 mm | 11 | |
| Aug. 11 | Partly cloudy | 29° /15° | 0 mm | 11 | |
| Aug. 12 | Fog | 28° /17° | 6.2 mm | 8 | |
| Aug. 13 |  Moderate or heavy rain shower | 26° /20° | 53.5 mm | 6 | |
| Aug. 14 | Fog | 26° /20° | 0 mm | 3 | |
| Aug. 15 |  Cloudy | 27° /19° | 0 mm | 9 | |
| Aug. 16 |  Light rain shower | 27° /20° | 16.1 mm | 5 | |
| Aug. 17 | Moderate or heavy rain shower | 29° /16° | 5.2 mm | 8 | |
| Aug. 18 | Overcast | 21° /15° | 0 mm | 7 | |
| Aug. 19 | Overcast | 19° /14° | 0 mm | 4 | |
| Aug. 20 | Moderate or heavy rain shower | 25° /17° | 3.5 mm | 2 | |
| Aug. 21 | Fog | 20° /18° | 0 mm | 2 | |
| Aug. 22 | Overcast | 23° /15° | 0 mm | 7 | |
| Aug. 23 | Mist | 24° /15° | 0 mm | 8 | |
| Aug. 24 |  Moderate rain | 25° /17° | 13.8 mm | 4 | |
| Aug. 25 | Mist | 19° /14° | 0 mm | 5 | |
| Aug. 26 | Mist | 17° /11° | 0 mm | 5 | |
| Aug. 27 | Partly cloudy | 19° /11° | 0 mm | 9 | |
| Aug. 28 | Overcast | 20° /10° | 0 mm | 5 | |
| Aug. 29 | Overcast | 17° /10° | 0 mm | 6 | |
| Aug. 30 | Mist | 19° /7° | 0 mm | 9 | |
| Aug. 31 | Overcast | 19° /9° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Johnstown in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Johnstown forecast closer to your planned date for the most up-to-date weather information.
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Johnstown in August - FAQ
What are the expected maximum and minimum temperatures in Johnstown during August?
During August, expect a variety of temperatures with highs around 23° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Johnstown during August?
Significant rainfall exceeding 121.8 mm is expected in Johnstown during August, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Johnstown during August?
The average wind speed in Johnstown during August is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Johnstown
Explore the daily rainfall trends and prepare for Johnstowns August weather 💧
Typically, Johnstown has 7 rainy days in August with a total of 121.8 mm of rainfall.
UV exposure in Johnstown during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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