Virginia · NWS LWX office

Manassas, VA weather

It is 46°F and mostly cloudy at Washington Manassas Airport as of Oct 28, 2:15 AM EDT. Overnight: Areas Of Fog, low near 48°F, 1% chance of precipitation. Forecast from the National Weather Service, issued Oct 28, 1:44 AM EDT.

Updated Oct 28, 2:24 AM EDT (snapshot)

Current conditions

Temperature

46°F

Mostly Cloudy

Wind

Calm

Humidity 100% · dew point 46°F

Pressure · visibility

30.39 inHg

Visibility 10 mi

Observed at Washington Manassas Airport (KHEF), Oct 28, 2:15 AM EDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Manassas forecast zone right now.

Around the NWS LWX forecast area

No active alerts in zones served by the LWX office near Manassas.

From the alert snapshot of Oct 28, 2026, 2:15 AM EDT. No alerts are active anywhere in Virginia.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Manassas (local time)
TimeTempForecastPrecip. chanceWind
Wed 2 AM50°FPartly Cloudy1%E 1 mph
Wed 3 AM50°FPartly Cloudy1%E 1 mph
Wed 4 AM50°FMostly Cloudy1% 0 mph
Wed 5 AM49°FPatchy Fog1% 0 mph
Wed 6 AM49°FPatchy Fog1% 0 mph
Wed 7 AM48°FAreas Of Fog1% 0 mph
Wed 8 AM49°FAreas Of Fog2%NE 1 mph
Wed 9 AM51°FAreas Of Fog2%E 1 mph
Wed 10 AM55°FPatchy Fog2%E 1 mph
Wed 11 AM59°FMostly Cloudy2%SE 2 mph
Wed 12 PM62°FMostly Cloudy2%SE 3 mph
Wed 1 PM65°FMostly Cloudy2%SE 3 mph
Wed 2 PM66°FMostly Cloudy2%SE 3 mph
Wed 3 PM67°FMostly Cloudy2%SE 3 mph
Wed 4 PM68°FCloudy1%SE 3 mph
Wed 5 PM66°FMostly Cloudy1%SE 3 mph
Wed 6 PM65°FMostly Cloudy1%SE 3 mph
Wed 7 PM62°FMostly Cloudy1%SE 3 mph
Wed 8 PM57°FMostly Cloudy0%SE 3 mph
Wed 9 PM55°FMostly Cloudy0%SE 2 mph
Wed 10 PM54°FMostly Cloudy0%SE 2 mph
Wed 11 PM54°FPartly Cloudy0%SE 2 mph
Thu 12 AM53°FPartly Cloudy0%S 2 mph
Thu 1 AM52°FPartly Cloudy0%S 1 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Manassas can differ.

7-day forecast

Overnight

Low 48°F

Areas of fog after 3am. Partly cloudy, with a low around 48. East wind around 1 mph.

Wednesday

High 68°F·Low 47°F

Areas of fog before 10am. Mostly cloudy, with a high near 68. East wind 0 to 3 mph.

Wednesday Night: Patchy fog after 10pm. Mostly cloudy, with a low around 47. Southeast wind 0 to 3 mph.

Thursday

High 73°F·Low 48°F

Patchy fog before 11am. Mostly sunny, with a high near 73. South wind 0 to 5 mph.

Thursday Night: Mostly clear, with a low around 48. Southwest wind around 3 mph.

Friday

High 75°F·Low 46°F

Sunny, with a high near 75.

Friday Night: Mostly clear, with a low around 46.

Saturday

High 66°F·Low 49°F

Partly sunny, with a high near 66.

Saturday Night: Mostly cloudy, with a low around 49.

Sunday

High 69°F·Low 54°F

Mostly cloudy, with a high near 69.

Sunday Night: A chance of rain showers after 7pm. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

Monday

High 70°F·Low 55°F

A chance of rain showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.

Monday Night: A chance of rain showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

Tuesday

High 69°F

A chance of rain showers. Partly sunny, with a high near 69.

Nearby cities

Larger cities in the area

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About this forecast

Forecast office
Manassas is served by the National Weather Service LWX forecast office, forecast zone VAZ527, county zone VAC683.
Location used
The Census Bureau's internal point for Manassas (38.7468, -77.4826), in Manassas city. Population: 43,616 (2024 estimate), number 16 of the 28 Virginia cities on this site.
Radar
Nearest NWS radar: KLWX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/38.7468,-77.4826 (forecast issued Oct 28, 1:44 AM EDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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