Weather forecast for todayHerndon, PA
Weather forecast for today
Current condition 8:38 am EDT
- 43°F
- Feels like:43°F
Sunny
- Precipitation: 0"
- Wind: 1mphSE 140°
- Humidity: 76%
- Dewpoint: 36°F
- Pressure: 30.32"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
In Herndon, at the moment, the sky is clear with no clouds in sight.
The temperature is a brisk 42.8°F. The current temperature is far from the maximum of 64.4°F predicted for today.
The temperature is a brisk 42.8°F. The current temperature is far from the maximum of 64.4°F predicted for today.
Wednesday Oct 21, 2026
- 64°F
- 34°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphN 2°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:25 am EDT
- Sunset: 6:18 pm EDT
- details ▼
On Wednesday, in Herndon, expect consistent sunshine and open skies.
A stark contrast will be evident between the daytime peak temperature of a comfortable 64.4°F and the nighttime low of a cold 33.8°F.
The maximum temperature will align with October's usual high of 61.3°F.
Sunrise was at 7:25 am and sunset will be at 6:18 pm; the daylight will last for 10h and 53min.
A stark contrast will be evident between the daytime peak temperature of a comfortable 64.4°F and the nighttime low of a cold 33.8°F.
The maximum temperature will align with October's usual high of 61.3°F.
Sunrise was at 7:25 am and sunset will be at 6:18 pm; the daylight will last for 10h and 53min.
Hourly overview
Hourly temperatures
Warmest period: 3 pm - 5 pm 63°C.
Coldest hour: 9 am 41°C.
Coldest hour: 9 am 41°C.
Chance of precipitation
Highest chance: 11 pm 3%.
Hourly weather forecast
- 9 am
- 41°F
- Feels like:41°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphN 7°
- Humidity: 83%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 10 am
- 46°F
- Feels like:46°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphNNE 16°
- Humidity: 69%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 11 am
- 50°F
- Feels like:50°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNNE 13°
- Humidity: 59%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 12 pm
- 55°F
- Feels like:54°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphN 6°
- Humidity: 50%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 1 pm
- 57°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphN 0°
- Humidity: 44%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphN 357°
- Humidity: 40%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 3 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphN 359°
- Humidity: 37%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphN 354°
- Humidity: 36%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 5 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphN 0°
- Humidity: 38%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 pm
- 57°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphN 351°
- Humidity: 44%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:18 pm
- 7 pm
- 52°F
- Feels like:52°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphN 353°
- Humidity: 58%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 48°F
- Feels like:48°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphN 358°
- Humidity: 64%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 pm
- 46°F
- Feels like:45°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphN 357°
- Humidity: 71%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 45°F
- Feels like:43°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphNNW 349°
- Humidity: 74%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 11 pm
- 43°F
- Feels like:41°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphN 351°
- Humidity: 76%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Today, in Herndon, sunshine is expected.
The temperature will be between a minimum of 41°F and a maximum of 62.6°F. The warmest part of the day will be from 3 pm to 5 pm.
The maximum temperature will be close to October's average highest temperature of 61.3°F. Forecast models suggest a low more similar to November's typical minimum of 34°F than October's usual 44.2°F.
The temperature will be between a minimum of 41°F and a maximum of 62.6°F. The warmest part of the day will be from 3 pm to 5 pm.
The maximum temperature will be close to October's average highest temperature of 61.3°F. Forecast models suggest a low more similar to November's typical minimum of 34°F than October's usual 44.2°F.
Updated: Oct 21, 2026 @ 12:38:14 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
At 8:38 am EDT, the temperature is 42.8°F.
On Wednesday, the weather remains calm, bright, and sunny.
Today, the maximum temperature in Herndon will be 64.4°F, while the minimum temperature will be 33.8°F.
The highest temperature will be in line with the average maximum of 61.3°F in October. The lowest temperature will be uncommonly lower than the average low of 44.2°F.
The highest temperature will be in line with the average maximum of 61.3°F in October. The lowest temperature will be uncommonly lower than the average low of 44.2°F.
On Wednesday, in Herndon, sunrise was at 7:25 am and sunset will be at 6:18 pm (EDT).
In Herndon, today, there will be 10h and 53min of daylight.
Herndon, Pennsylvania, USA
- en: Herndon, Pennsylvania, USA
- es: Herndon, Pensilvania, EE.UU.
- hr: Herndon, Pensilvanija, SAD
- mk: Herndon, Pensilvanija, SAD
- sr: Herndon, Pensilvanija, SAD
- zh: 赫恩登, 宾夕法尼亚, 美国
- Latitude: 40.709529°
- Longitude: -76.842472°
- Elevation: 453 ft
- Current time: 8:47am EDT
- Sunrise: 7:25 am EDT
- Sunset: 6:18 pm EDT
- Timezone: America/New_York
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