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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 >

Hazardous Weather Conditions

Current conditions at

Petersburg, Grant County Airport (KW99)

Lat: 38.98°NLon: 79.13°WElev: 961ft.

Mostly Cloudy

89°F

32°C

Humidity 48%
Wind Speed SW 5 mph
Barometer 29.96 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 17 Aug 1:55 pm EDT
Extended Forecast for

Milam WV

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms before 4pm, then isolated showers and thunderstorms after 5pm. Partly sunny, with a high near 92. West wind around 7 mph. Chance of precipitation is 20%.

    High: 92 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 9pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 65. North wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Scattered
    T-storms then
    Patchy Fog

  • Monday

    Monday: A chance of showers, mainly after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 81. North wind around 7 mph. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of showers. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers, mainly after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 79. Southeast wind 3 to 5 mph. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers after 8am. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms before 4pm, then isolated showers and thunderstorms after 5pm. Partly sunny, with a high near 92. West wind around 7 mph. Chance of precipitation is 20%.
Tonight
Scattered showers and thunderstorms, mainly before 9pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 65. North wind 3 to 6 mph. Chance of precipitation is 30%.
Monday
A chance of showers, mainly after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 81. North wind around 7 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Tuesday
A chance of showers, mainly after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 79. Southeast wind 3 to 5 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Thursday
A chance of showers after 8am. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 62.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Milam WV
 38.82°N 79.1°W (Elev. 1739 ft)
Last Update:
1:29 pm EDT Aug 17, 2025
Forecast Valid:
2pm EDT Aug 17, 2025-6pm EDT Aug 23, 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