Fairfax County (Herndon)
Today
Today weather in Fairfax County
Wednesday, June 17th, 2026
32°
Sunny
Today, Fairfax County is set to face a notably hot day, with temperatures spiking up to 31 °C and offering slight relief at 17 °C by night. Gentle breezes are expected across Fairfax County Today, with speeds reaching around 12 km/h. There's a slight chance of rain at 4%.
32° / 17°
Temp
4%
Rain
12 km/h
Wind
60%
Humidity
Fairfax County Weather Pages
Fairfax County hourly forecast for today
Scroll right to see more weather forecasts for Fairfax County today
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 05:43 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 20:37 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | | |  | | | | | | | |  |  | | | | | | |  |  | | | Next |
| temperatures | 20.1° | 19.3° | 18.9° | 18.7° | 18.3° | 17.6° | Sunrise | 18.1° | 19.3° | 21° | 22.9° | 26.6° | 29.1° | 29° | 29.5° | 29° | 29.5° | 29° | 28.9° | 27.7° | 26.2° | 25.2° | Sunset | 23.7° | 22.7° | 22.5° | |
| feels like | 20.1° | 19.3° | 18.9° | 18.7° | 18.3° | 17.6° | 18.1° | 19.3° | 21° | 24.1° | 27.6° | 29.7° | 29° | 29° | 28.7° | 29° | 28.9° | 28.8° | 28.1° | 26.9° | 26.2° | 25.4° | 25° | 24.8° | |||
| wind speed | 9 km/h | 8 km/h | 7 km/h | 7 km/h | 6 km/h | 6 km/h | 5 km/h | 5 km/h | 5 km/h | 4 km/h | 4 km/h | 7 km/h | 9 km/h | 9 km/h | 12 km/h | 10 km/h | 11 km/h | 8 km/h | 10 km/h | 6 km/h | 7 km/h | 10 km/h | 12 km/h | 12 km/h | |||
| wind degree | 144° | 159° | 180° | 195° | 199° | 250° | 222° | 229° | 240° | 254° | 218° | 230° | 243° | 236° | 204° | 224° | 232° | 202° | 199° | 173° | 160° | 146° | 148° | 145° | |||
| wind direction | SE | SSE | S | SSW | SSW | WSW | SW | SW | WSW | WSW | SW | SW | WSW | WSW | SSW | SW | SW | SSW | SSW | S | SSE | SE | SSE | SE | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 4% | 6% | 9% | 10% | 10% | 11% | 11% | 10% | 9% | 7% | 3% | 1% | 1% | 2% | 5% | 3% | 4% | 4% | 4% | 4% | 5% | 4% | 7% | 5% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 64% | 73% | 80% | 83% | 82% | 83% | 87% | 85% | 80% | 75% | 61% | 45% | 37% | 34% | 31% | 39% | 33% | 43% | 43% | 52% | 55% | 53% | 62% | 66% | |||
| dew point | 12.9° | 14.1° | 14.9° | 15.7° | 15.3° | 14.9° | 14.9° | 16° | 17.1° | 17.9° | 16.9° | 16.8° | 15.2° | 11.8° | 11.1° | 13.4° | 12.1° | 14.7° | 14.8° | 16° | 15° | 14° | 14.5° | 15.2° | |||
| visibility | 10 km | 10 km | 9 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 1% | 2% | 0% | 0% | 11% | 26% | 64% | 45% | 51% | 44% | 45% | 31% | 45% | 33% | 47% | 12% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 1.1 | 2.4 | 4.4 | 6.4 | 8.1 | 8.9 | 5 | 6.2 | 2.9 | 1.3 | 0.4 | 0.5 | 0.1 | 0 | 0 | 0 |
Weather in Fairfax County today
The weather in Fairfax County today is expected to be noticeably warmer than usual, with a forecast temperature of 32 °C, compared to an average of 28 °C for June 17th in recent years.
temperatures
32 °C
rain
0 mm
wind
12 km/h
UV
Very High
Fairfax County daylight overview ☀️
Today in Fairfax County, The sun rises at 05:43 and sets at 20:37, giving a total daylight duration of 14 hours and 54 minutes.
Top locations in Fairfax County
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What to wear today in Fairfax County? clothing recommendations
Stay comfortably stylish - your tailored guide for today's Fairfax County forecast.
Short-sleeve shirt
Shorts
Lightweight trousers
Breathable footwear
Sunglasses
Wide brimmed hat
Sunscreen
Flip flop
The weather today in Fairfax County - FAQ
What is the maximum temperature for today in Fairfax County?
The maximum temperature for today in Fairfax County is expected to be 32° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in Fairfax County? 🌧️
Yes, there is a 4% chance of rain in Fairfax County today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in Fairfax County? 🌀
The wind in Fairfax County is expected to blow at 12 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Fairfax County today?
Given the forecast of 32 °C with a 4% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Fairfax County today.
What is the sunrise and sunset time for Fairfax County today?
The sun is expected to rise at 05:43 and set at 20:37 in Fairfax County.
How accurate is the weather forecast Fairfax County today? ✅
Fairfax County weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Where is Fairfax County?Get accurate weather forecasts for Fairfax County, located at latitude 38.97 and longitude -77.386. Stay updated with localized weather information tailored for Fairfax County.
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