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

Petersburg, Grant County Airport (KW99)

Lat: 38.98°NLon: 79.13°WElev: 961ft.

Light Rain

78°F

26°C

Humidity 81%
Wind Speed S 12 mph
Barometer 30.00 in
Dewpoint 71°F (22°C)
Visibility 7.00 mi
Heat Index80°F (27°C)
Last update 12 Aug 5:55 pm EDT
Extended Forecast for

Riverton WV

  • Tonight

    Tonight: A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 5pm. Patchy fog before 10am. High near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Chance
    Showers and
    Patchy Fog
    then T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 50%.
Wednesday
Showers and thunderstorms, mainly before 5pm. Patchy fog before 10am. High near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 60%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Saturday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Saturday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 66.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WV
 38.74°N 79.43°W (Elev. 1900 ft)
Last Update:
4:29 pm EDT Aug 12, 2025
Forecast Valid:
6pm EDT Aug 12, 2025-6pm EDT Aug 19, 2025
 
Forecast Discussion
 
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Additional Resources

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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