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

77°F

25°C

Humidity 94%
Wind Speed Calm
Barometer 29.95 in (1014.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 18 Aug 3:53 am CDT
Extended Forecast for

3 Miles E Chatham MS

Heat Advisory August 18, 10:00am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny and hot, with a high near 100. Heat index values as high as 110. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 100 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 76. Northeast wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 110. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. Northeast wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind becoming north around 5 mph in the afternoon.

    High: 99 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 74. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Calm wind becoming north northeast around 5 mph in the morning.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. North wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 100. Heat index values as high as 110. Calm wind becoming north northeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 76. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 101. Heat index values as high as 110. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 75. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 74. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Calm wind becoming north northeast around 5 mph in the morning.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. North wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind becoming north northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 73.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Chatham MS
 33.08°N 91.03°W
Last Update:
4:15 am CDT Aug 18, 2025
Forecast Valid:
4am CDT Aug 18, 2025-6pm CDT Aug 24, 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