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McNair, Mississippi Weather Forecast
McNair, Mississippi Weather
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Weather Forecast for McNair, Mississippi : Jefferson County
Issued: 4:15 am CST Dec 16, 2025 Latitude: 31.6384992 Longitude: -91.0420484 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Partly Sunny on Today Cloudy on Tonight 20% chance of rain on Wednesday 70% chance of thunderstorms on Thursday Sunny on Friday Mostly Sunny on Saturday Partly Sunny on Sunday Partly Sunny on Monday
High: 57°F Low: 42°F High: 64°F High: 72°F High: 57°F High: 70°F High: 74°F High: 73°F
Low: 54°F Low: 38°F Low: 40°F Low: 60°F Low: 58°F  
Partly Sunny Cloudy Rain Thunderstorms Sunny Mostly Sunny Partly Sunny Partly Sunny
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Current Conditions at
NATCHEZ - (KHEZ)
27°
Clear
as of 3:56 AM CST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MCCOMB - (KMCB)
28°
Clear
as of 3:53 AM CST
Rel. Humidity: 86%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
VICKSBURG - (KTVR)
25°
Clear
as of 3:53 AM CST
Rel. Humidity: 92%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Partly Sunny on Today Today... Widespread frost before 9am. Otherwise, partly sunny, with a high near 57. Calm wind becoming south around 5 mph.

Cloudy on Tonight Tonight... Cloudy, with a low around 42. Calm wind becoming south southeast around 5 mph.

20% chance of rain Wednesday Wednesday... A 20 percent chance of showers before noon. Mostly cloudy, with a high near 64. Southeast wind around 5 mph.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 54. South southeast wind around 5 mph.

70% chance of thunderstorms Thursday Thursday... Showers likely and possibly a thunderstorm, mainly after 3pm. Mostly cloudy, with a high near 72. South southeast wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

30% chance of rain Thursday Night Thursday Night... A 30 percent chance of showers before midnight. Partly cloudy, with a low around 38. West wind 5 to 10 mph becoming north after midnight.

Sunny on Friday Friday... Sunny, with a high near 57. North wind around 5 mph becoming calm in the afternoon.

Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 40. Calm wind becoming south southeast around 5 mph after midnight.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 70. South wind 5 to 10 mph.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 60.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 74.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 58.

Partly Sunny on Monday Monday... Partly sunny, with a high near 73.

Sun Almanac for McNair, Mississippi
Sunrise: 06:57 AM
Sunset: 5:03 PM
Civil Sunrise:06:30 AM
Civil Sunset: 5:30 PM
Nautical Sunrise: 06:00 AM
Nautical Sunset: 6:00 PM
Astro Sunrise: 05:30 AM
Astro Sunset: 6:30 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.