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

William M Tuck Airport (KW78)

Lat: 36.71°NLon: 78.85°WElev: 420ft.

Fair

55°F

13°C

Humidity 58%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 17 Feb 6:55 pm EST
Extended Forecast for

Alton VA

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. South wind 5 to 8 mph.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 65. Southwest wind 8 to 15 mph, with gusts as high as 29 mph.

    High: 65 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 48. Southwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 48 °F

    Cloudy then
    Slight Chance
    Rain

  • Thursday

    Thursday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 61. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 52. East wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance Rain

  • Friday

    Friday: Rain, mainly before 1pm. High near 69. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 69 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain after 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 30%.

    Low: 45 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.

    High: 57 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 50%.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. South wind 5 to 8 mph.
Wednesday
Cloudy, with a high near 65. Southwest wind 8 to 15 mph, with gusts as high as 29 mph.
Wednesday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 48. Southwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 20%.
Thursday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 61. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 52. East wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, mainly before 1pm. High near 69. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain after 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 30%.
Saturday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 50%.
Sunday
A chance of rain. Partly sunny, with a high near 50. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 24.
Tuesday
Sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alton VA
 36.57°N 79.01°W (Elev. 538 ft)
Last Update:
7:00 pm EST Feb 17, 2026
Forecast Valid:
7pm EST Feb 17, 2026-6pm EST Feb 24, 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