National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Manassas, Manassas Regional Airport/Harry P. Davis Field (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fair

75°F

24°C

Humidity 84%
Wind Speed N 7 mph
Barometer 29.94 in (1014.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 2:56 am EDT
Extended Forecast for

Gainesville VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 69. Northwest wind around 5 mph.

    Low: 69 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 76. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A slight chance of showers before 8pm, then a slight chance of showers after 3am. Patchy fog after 3am. Otherwise, cloudy, with a low around 66. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Cloudy then
    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers before 7am, then a chance of showers after 8am. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a high near 74. Northeast wind around 6 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 65. East wind around 6 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 69. Northwest wind around 5 mph.
Monday
Mostly cloudy, with a high near 76. Northeast wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers before 8pm, then a slight chance of showers after 3am. Patchy fog after 3am. Otherwise, cloudy, with a low around 66. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers before 7am, then a chance of showers after 8am. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a high near 74. Northeast wind around 6 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 65. East wind around 6 mph becoming calm in the evening.
Wednesday
A slight chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
A chance of showers. Partly sunny, with a high near 86. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gainesville VA
 38.79°N 77.61°W (Elev. 348 ft)
Last Update:
1:30 am EDT Aug 18, 2025
Forecast Valid:
3am EDT Aug 18, 2025-6pm EDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation