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

Hazardous Weather Conditions

Current conditions at

Greenville, Mid Delta Regional Airport (KGLH)

Lat: 33.48°NLon: 90.99°WElev: 131ft.

Fair

73°F

23°C

Humidity 87%
Wind Speed S 3 mph
Barometer 29.99 in (1016.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 8 Sep 4:53 am CDT
Extended Forecast for

Chatham MS

Heat Advisory September 8, 11:00am until September 8, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 109. Calm wind becoming south southeast around 5 mph in the morning. Chance of precipitation is 20%.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Heat index values as high as 104. Calm wind becoming south around 5 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 96. Calm wind.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Calm wind becoming south southwest around 5 mph.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 73. South wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 94. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 94 °F

    Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 109. Calm wind becoming south southeast around 5 mph in the morning. Chance of precipitation is 20%.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 96. Heat index values as high as 104. Calm wind becoming south around 5 mph.
Wednesday Night
Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 96. Calm wind.
Thursday Night
Partly cloudy, with a low around 73. Calm wind.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Calm wind becoming south southwest around 5 mph.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 73. South wind around 5 mph becoming calm. Chance of precipitation is 30%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 94. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 73.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 72.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chatham MS
 33.1°N 91.09°W
Last Update:
5:15 am CDT Sep 8, 2026
Forecast Valid:
5am CDT Sep 8, 2026-6pm CDT Sep 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation