Jaynesville, Mississippi Weather
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Click for Heat Advisory for Jaynesville, Mississippi
Click for Heat Advisory for Jaynesville, Mississippi
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Weather Forecast for Jaynesville, Mississippi : Simpson County
Issued: 2:15 pm CDT Aug 18, 2025 Latitude: 31.7751632 Longitude: -89.7667418 View on Google Maps

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This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
50% chance of thunderstorms on This Afternoon 20% chance of thunderstorms on Tonight 20% chance of thunderstorms on Tuesday 30% chance of thunderstorms on Wednesday 50% chance of thunderstorms on Thursday 60% chance of thunderstorms on Friday 50% chance of thunderstorms on Saturday 30% chance of thunderstorms on Sunday
High: 96°F Low: 72°F High: 95°F High: 96°F High: 94°F High: 91°F High: 90°F High: 91°F
Low: 72°F Low: 72°F Low: 71°F Low: 71°F Low: 70°F  
Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
LAUREL-HATIESBURG - (KPIB)
97°
Feels like 105°F
Mostly Clear
as of 2:12 PM CDST
Rel. Humidity: 44%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
3 MPH
Cloud Level(s): Few at 5500ft
Current Conditions at
JACKSON INTERNATIONAL - (KJAN)
97°
Feels like 107°F
Mostly Cloudy
as of 1:54 PM CDST
Rel. Humidity: 47%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
8 MPH
040° Northeast
Cloud Level(s): Scattered at 5000ft, Broken at 10000ft
Current Conditions at
HATTIESBURG - (KHBG)
82°
Cloudy
Light Rain
as of 2:12 PM CDST
Rel. Humidity: 69%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
12 MPH
320° Northwest
Cloud Level(s): Few at 5000ft, Broken at 8500ft, Solid Overcast at 11000ft
Current Conditions at
JACKSON HAWKINS FIELD - (KHKS)
93°
Feels like 102°F
Cloudy
as of 1:53 PM CDST
Rel. Humidity: 52%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
3 MPH
320° Northwest
Cloud Level(s): Broken at 6000ft, Broken at 8000ft, Solid Overcast at 9500ft
50% chance of thunderstorms This Afternoon This Afternoon... A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96. Heat index values as high as 103. North northeast wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
20% chance of thunderstorms Tonight Tonight... A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.
20% chance of thunderstorms Tuesday Tuesday... A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 95. Heat index values as high as 103. Calm wind becoming northeast around 5 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 72. Calm wind.
30% chance of thunderstorms Wednesday Wednesday... A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Calm wind.
20% chance of thunderstorms Wednesday Night Wednesday Night... A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 72. Calm wind. Chance of precipitation is 20%.
50% chance of thunderstorms Thursday Thursday... A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind.
30% chance of thunderstorms Thursday Night Thursday Night... A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. Calm wind.
60% chance of thunderstorms Friday Friday... Showers and thunderstorms likely after 1pm. Partly sunny, with a high near 91. Calm wind. Chance of precipitation is 60%.
30% chance of thunderstorms Friday Night Friday Night... A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71.
50% chance of thunderstorms Saturday Saturday... A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
20% chance of thunderstorms Saturday Night Saturday Night... A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
30% chance of thunderstorms Sunday Sunday... A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Current Radar Image


Sun Almanac for Jaynesville, Mississippi
Sunrise: 06:26 AM
Sunset: 7:39 PM
Civil Sunrise:06:01 AM
Civil Sunset: 8:05 PM
Nautical Sunrise: 05:31 AM
Nautical Sunset: 8:35 PM
Astro Sunrise: 04:59 AM
Astro Sunset: 9:07 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.