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Decatur, MS Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Decatur, a town in Newton County, Mississippi.

Today
98°F
Sunny
Sunny. High near 98, with temperatures falling to around 94 in the afternoon. Heat index values as high as 103. North northwest wind 0 to 5 mph.

7-day forecast for Decatur

WhenTempForecastWindPrecip
Today 98°F Sunny 0 to 5 mph NNW 3%
Tonight 72°F Mostly Clear 0 mph 11%
Sunday 97°F Mostly Sunny 0 to 5 mph NNW 6%
Sunday Night 71°F Mostly Clear 0 mph 5%
Monday 96°F Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph NNW 17%
Monday Night 70°F Slight Chance Showers And Thunderstorms 0 mph 19%
Tuesday 95°F Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph NNE 15%
Tuesday Night 69°F Slight Chance Showers And Thunderstorms then Mostly Clear 0 to 5 mph NNE 15%
Wednesday 92°F Sunny 5 to 10 mph NNE 8%
Wednesday Night 66°F Mostly Clear 5 mph NNE 8%
Thursday 88°F Sunny 5 to 10 mph NNE 5%
Thursday Night 64°F Mostly Clear 5 mph NNE 5%
Friday 87°F Mostly Sunny 5 to 10 mph NNE 2%
Friday Night 63°F Partly Cloudy 5 mph NNE 2%

Forecast source: National Weather Service (api.weather.gov) for Decatur (32.434, -89.111). Updated through the day.

Growing snapshot for Decatur

Last spring frost
Mar 25
First fall frost
Nov 2
Growing season
222 days
Hardiness zone
8b

More local growing data for Decatur: nearby ZIP 39327 weather · frost dates · planting calendar · Mississippi frost dates

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Climate data from the nearest NOAA station, Newton Exp Stn, Ms (7.8 mi from Decatur). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.