Weather forecast for tomorrowBig Run, PA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphNNE 27°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:31 am EDT
- Sunset: 6:29 pm EDT
- details ▼
Tomorrow, a sun-drenched sky is also anticipated.
Substantial temperature fluctuations from a high of a breezy 66.2°F to a low of an icy 37.4°F are forecasted.
Forecasts show a high closer to September's climate pattern, around 72.3°F, rather than October's 59.4°F.
Sunrise will be at 7:31 am and sunset at 6:29 pm; tomorrow's daylight will last for 10h and 58min.
Substantial temperature fluctuations from a high of a breezy 66.2°F to a low of an icy 37.4°F are forecasted.
Forecasts show a high closer to September's climate pattern, around 72.3°F, rather than October's 59.4°F.
Sunrise will be at 7:31 am and sunset at 6:29 pm; tomorrow's daylight will last for 10h and 58min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 34°C.
Coldest hour: 6 am 34°C.
Chance of precipitation
Highest chance: 12 am - 6 am 3%.
Hourly weather forecast
- 12 am
- 39°F
- Feels like:39°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 1mphESE 114°
- Humidity: 78%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 2mphESE 107°
- Humidity: 81%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 36°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 2mphE 92°
- Humidity: 82%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 34°F
- Feels like:34°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 2mphE 96°
- Humidity: 82%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:31 am
- 8 am
- 34°F
- Feels like:34°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphE 90°
- Humidity: 83%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 48°F
- Feels like:46°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphENE 75°
- Humidity: 63%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 59°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNE 34°
- Humidity: 41%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphN 6°
- Humidity: 30%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNNW 337°
- Humidity: 32%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNNW 330°
- Humidity: 44%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:29 pm
- 8 pm
- 52°F
- Feels like:50°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphNNW 339°
- Humidity: 60%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 46°F
- Feels like:45°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphN 358°
- Humidity: 69%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Monday, bright and mostly sunny weather is expected.
The temperature will be between the lowest temperature of 33.8°F and the highest temperature of 66.2°F. The warmest part of the day will be at 3 pm and 4 pm.
The temperature will feel more comparable to September's average high than the expected maximum for October. Forecast models suggest a low more similar to November's typical minimum of 32°F than October's usual 43.5°F.
The temperature will be between the lowest temperature of 33.8°F and the highest temperature of 66.2°F. The warmest part of the day will be at 3 pm and 4 pm.
The temperature will feel more comparable to September's average high than the expected maximum for October. Forecast models suggest a low more similar to November's typical minimum of 32°F than October's usual 43.5°F.
Updated: Oct 18, 2026 @ 04:44:16 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Monday, in Big Run, conditions will remain bright with clear skies.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 59.4°F in October. The lowest temperature will be also a few degrees lower than the average low of 43.5°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 59.4°F in October. The lowest temperature will be also a few degrees lower than the average low of 43.5°F.
On Monday, in Big Run, sunrise will be at 7:31 am and sunset at 6:29 pm (EDT).
In Big Run, the length of the day tomorrow will be 10h and 58min.
