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.

Overcast

75°F

24°C

Humidity 84%
Wind Speed N 10 mph
Barometer 29.94 in (1014.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 3:56 am EDT
Extended Forecast for

5 Miles SE Manassas Regional Airport VA

  • Today

    Today: Mostly cloudy, with a high near 77. Northeast wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 77 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers before 9pm, then a slight chance of showers after 2am. Patchy fog after 5am. Otherwise, cloudy, with a low around 67. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers, mainly between 8am and 2pm. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a high near 75. Northeast wind around 6 mph. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 66. East wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Partly sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 83 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 77. Northeast wind 7 to 10 mph, with gusts as high as 18 mph.
Tonight
A slight chance of showers before 9pm, then a slight chance of showers after 2am. Patchy fog after 5am. Otherwise, cloudy, with a low around 67. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.
Tuesday
A chance of showers, mainly between 8am and 2pm. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a high near 75. Northeast wind around 6 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 66. East wind around 6 mph becoming calm in the evening.
Wednesday
A slight chance of showers after 2pm. Partly sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Mostly sunny, with a high near 86.
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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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Manassas Regional Airport VA
 38.67°N 77.46°W (Elev. 299 ft)
Last Update:
1:30 am EDT Aug 18, 2025
Forecast Valid:
4am 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