Weather forecast for tomorrowHerndon, PA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 66°F
- 41°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 5mphN 8°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:23 am EDT
- Sunset: 6:21 pm EDT
- details ▼
Tomorrow, in Herndon, sunshine is also forecasted under mostly clear skies.
A temperature range of an enjoyable 66.2°F to a wintry 41°F is anticipated.
Today’s forecasted high is set to be moderately higher than October's regular high of 61.3°F.
Sunrise will be at 7:23 am and sunset at 6:21 pm; tomorrow's daylight will last for 10h and 58min.
A temperature range of an enjoyable 66.2°F to a wintry 41°F is anticipated.
Today’s forecasted high is set to be moderately higher than October's regular high of 61.3°F.
Sunrise will be at 7:23 am and sunset at 6:21 pm; tomorrow's daylight will last for 10h and 58min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 34°C.
Coldest hour: 6 am 34°C.
Chance of precipitation
Highest chance: 6 am 7%.
Hourly weather forecast
- 12 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 0mphNE 38°
- Humidity: 92%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 36°F
- Feels like:36°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 1mphNNE 28°
- Humidity: 95%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 34°F
- Feels like:34°F
Mostly Clear
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 1mphN 351°
- Humidity: 99%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 34°F
- Feels like:34°F
Clear
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 1mphNNW 348°
- Humidity: 99%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:23 am
- 8 am
- 34°F
- Feels like:34°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 1mphN 0°
- Humidity: 96%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 45°F
- Feels like:45°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphNNE 13°
- Humidity: 72%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 55°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphN 6°
- Humidity: 50%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphNNE 15°
- Humidity: 39%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphN 1°
- Humidity: 39%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphN 5°
- Humidity: 53%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:21 pm
- 8 pm
- 50°F
- Feels like:50°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphN 0°
- Humidity: 69%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 46°F
- Feels like:46°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphN 351°
- Humidity: 74%
- Pressure: 30.27"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 32°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will be a couple of degrees higher than October's average high of 61.3°F. The minimum temperature will be also similar to October's average low of 44.2°F.
The temperature will be between the lowest temperature of 32°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will be a couple of degrees higher than October's average high of 61.3°F. The minimum temperature will be also similar to October's average low of 44.2°F.
Updated: Oct 18, 2026 @ 06:28:17 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
Tomorrow, the outlook remains bright and sunny.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 41°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 61.3°F in October. The lowest temperature will be in line with the average low of 44.2°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 61.3°F in October. The lowest temperature will be in line with the average low of 44.2°F.
On Monday, in Herndon, sunrise will be at 7:23 am and sunset at 6:21 pm (EDT).
Tomorrow, the daylight will last for 10h and 58min.
