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2026 NWS Jackson/Mississippi Tornado Information

Hazardous Weather Conditions

Heat Advisory in effect from August 20, 11:00 AM CDT until August 20, 08:00 PM CDT

Current conditions at

Greenville, Mid Delta Regional Airport (KGLH)

Lat: 33.48°NLon: 90.99°WElev: 131ft.

Fair

93°F

34°C

Humidity	56%
Wind Speed	W 12 mph
Barometer	29.99 in (1015.9 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	105°F (41°C)
Last update	20 Aug 10:53 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles S Greenville MS

Heat Advisory until August 20, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until August 20, 08:00pm
NOW until 8:00pm Thu
Heat Advisory
Today
High: 102 °F
Hot
Tonight
Low: 75 °F
Heavy Rain
then Mostly
Cloudy
Friday
High: 100 °F
Hot
Friday Night
Low: 73 °F
Mostly Clear
Saturday
High: 100 °F
Hot
Saturday Night
Low: 74 °F
Slight Chance
T-storms then
Slight Chance
Showers
Sunday
High: 98 °F
Hot
Sunday Night
Low: 74 °F
Slight Chance
T-storms

Detailed Forecast

Today

Sunny and hot, with a high near 102. Heat index values as high as 110. Southwest wind 5 to 10 mph.

Tonight

A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Some of the storms could produce heavy rainfall. Mostly clear during the early evening, then becoming mostly cloudy, with a low around 75. West wind around 5 mph becoming calm after midnight. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Partly sunny, then gradually becoming sunny and hot, with a high near 100. Heat index values as high as 108. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon.

Friday Night

Mostly clear, with a low around 73. North wind around 5 mph becoming calm in the evening.

Saturday

Sunny and hot, with a high near 100. Calm wind becoming north around 5 mph in the afternoon.

Saturday 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. Southeast wind around 5 mph becoming calm. Chance of precipitation is 20%.

Sunday

Sunny and hot, with a high near 98. Calm wind becoming north northeast around 5 mph in the morning.

Sunday Night

A slight chance of showers and thunderstorms. Mostly clear, with a low around 74. East wind around 5 mph. Chance of precipitation is 20%.

Monday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 95. East southeast wind around 5 mph. Chance of precipitation is 20%.

Monday Night

A 20 percent chance of showers after 1am. Mostly clear, with a low around 74.

Tuesday

Mostly sunny and hot, with a high near 98.

Tuesday Night

Mostly clear, with a low around 75.

Wednesday

A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 99.