Weather forecast for tomorrow
Thursday, May 1.
6:09 am
8:03 pm
EDT
8:03 pm
EDT
Partly Cloudy
82°F / 66°F
- Wind: 11mph SE
- Humidity: 47%
- Precip. probability: 20%
- Precipitation: 0"
- UV index: 7
On Thursday, in Herndon, expect a mix of sun and clouds throughout the day.
The temperature will fluctuate from a high of a moderately hot 82.4°F to a low of an enjoyable 66.2°F.
The maximum heat index, which integrates air moisture with ambient temperature, is assessed at 82.4°F.
The forecast high of 82.4°F is more in line with May's average of 75°F than April's 64.9°F.
Sunrise will be at 6:09 am and sunset at 8:03 pm; tomorrow's daylight will last for 13h and 55min.
The temperature will fluctuate from a high of a moderately hot 82.4°F to a low of an enjoyable 66.2°F.
The maximum heat index, which integrates air moisture with ambient temperature, is assessed at 82.4°F.
The forecast high of 82.4°F is more in line with May's average of 75°F than April's 64.9°F.
Sunrise will be at 6:09 am and sunset at 8:03 pm; tomorrow's daylight will last for 13h and 55min.
Frequently asked questions
What is the weather forecast for Herndon for tomorrow?
Tomorrow, the sky will feature a blend of clouds and sunshine.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature in Herndon will be 82.4°F, while the lowest temperature will be 66.2°F. The maximum heat index, which measures the combined effect of heat and moisture, is evaluated at 82.4°F.
The maximum temperature will be notably higher than the average highest temperature of 64.9°F in April. The lowest temperature will be also significantly higher than the average low of 45.7°F.
The maximum temperature will be notably higher than the average highest temperature of 64.9°F in April. The lowest temperature will be also significantly higher than the average low of 45.7°F.
When are sunrise and sunset tomorrow?
On Thursday, in Herndon, sunrise will be at 6:09 am and sunset at 8:03 pm (EDT).
How many hours of daylight will Herndon have tomorrow?
In Herndon, the length of the day tomorrow will be 13h and 55min.
Hourly weather forecast
12 am
- 64°F
- Feels like:
64°F
Mostly Clear
- Wind: 4mph ENE
- Pressure: 30.09"Hg
- Humidity: 45%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
2 am
- 61°F
- Feels like:
61°F
Partly Cloudy
- Wind: 3mph ENE
- Pressure: 30.09"Hg
- Humidity: 47%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
4 am
- 59°F
- Feels like:
59°F
Partly Cloudy
- Wind: 4mph ENE
- Pressure: 30.09"Hg
- Humidity: 51%
- Precip. probability: 1%
- Precipitation: 0"
- Visibility: 10mi
6 am
- 57°F
- Feels like:
57°F
Mostly Cloudy
- Wind: 3mph ENE
- Pressure: 30.09"Hg
- Humidity: 54%
- Precip. probability: 1%
- Precipitation: 0"
- Visibility: 10mi
Sunrise: 6:09 am
8 am
- 61°F
- Feels like:
61°F
Mostly Cloudy
- Wind: 4mph E
- Pressure: 30.12"Hg
- Humidity: 54%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
10 am
- 68°F
- Feels like:
68°F
Partly Cloudy
- Wind: 6mph ESE
- Pressure: 30.09"Hg
- Humidity: 44%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
12 pm
- 73°F
- Feels like:
73°F
Mostly Cloudy
- Wind: 7mph SE
- Pressure: 30.06"Hg
- Humidity: 43%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
2 pm
- 79°F
- Feels like:
79°F
Partly Cloudy
- Wind: 9mph SE
- Pressure: 30"Hg
- Humidity: 43%
- Precip. probability: 15%
- Precipitation: 0"
- Visibility: 10mi
4 pm
- 81°F
- Feels like:
82°F
Mostly Cloudy
- Wind: 10mph SSE
- Pressure: 29.94"Hg
- Humidity: 46%
- Precip. probability: 15%
- Precipitation: 0"
- Visibility: 10mi
6 pm
- 79°F
- Feels like:
81°F
Mostly Cloudy
- Wind: 10mph SSE
- Pressure: 29.91"Hg
- Humidity: 52%
- Precip. probability: 20%
- Precipitation: 0"
- Visibility: 10mi
8 pm
- 73°F
- Feels like:
73°F
Mostly Cloudy
- Wind: 9mph SE
- Pressure: 29.91"Hg
- Humidity: 61%
- Precip. probability: 16%
- Precipitation: 0"
- Visibility: 10mi
Sunset: 8:03 pm
10 pm
- 73°F
- Feels like:
73°F
Partly Cloudy
- Wind: 7mph SSE
- Pressure: 29.91"Hg
- Humidity: 67%
- Precip. probability: 18%
- Precipitation: 0"
- Visibility: 9mi
Tomorrow, on Thursday, weather will be unstable, and a combination of primarily cloudy and occasionally wet, dry and sunny and thunderstorm-prone weather is predicted.
With a probability of 35%, minimal rainfall is anticipated around 9 pm.
The temperature will be between the lowest temperature of 57.2°F and the highest temperature of 80.6°F. The warmest part of the day will be from 3 pm to 5 pm.
The maximum is expected to resemble May's average high of 75°F rather than April's. The minimum temperature will be also more in line with May's average low of 55°F than April's typical 45.7°F.
With a probability of 35%, minimal rainfall is anticipated around 9 pm.
The temperature will be between the lowest temperature of 57.2°F and the highest temperature of 80.6°F. The warmest part of the day will be from 3 pm to 5 pm.
The maximum is expected to resemble May's average high of 75°F rather than April's. The minimum temperature will be also more in line with May's average low of 55°F than April's typical 45.7°F.
Updated: Apr 30, 2025 @ 04:55:39 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