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Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fair

56°F

13°C

Humidity 77%
Wind Speed S 6 mph
Barometer 30.24 in (1024.6 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 12 Apr 11:56 pm EDT
Extended Forecast for

Haymarket VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 60. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 60 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 1pm. Mostly cloudy, with a high near 82. Southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. Southwest wind around 6 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Mostly sunny, with a high near 88. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64. Southwest wind 3 to 6 mph.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 65 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. South wind around 11 mph, with gusts as high as 22 mph.
Monday
A slight chance of showers after 1pm. Mostly cloudy, with a high near 82. Southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 60. Southwest wind around 6 mph becoming calm in the evening.
Tuesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 88. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 64. Southwest wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
Partly sunny, with a high near 91.
Thursday Night
Mostly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Mostly cloudy, with a low around 65.
Sunday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Haymarket VA
 38.82°N 77.64°W (Elev. 348 ft)
Last Update:
10:53 pm EDT Apr 12, 2026
Forecast Valid:
12am EDT Apr 13, 2026-6pm EDT Apr 19, 2026
 
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