Sumner, MS Weather & Growing Conditions
This Afternoon
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 103. South wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 100°F | Sunny | 0 mph | 1% |
| Tonight | 74°F | Mostly Clear | 0 mph | 1% |
| Sunday | 100°F | Mostly Sunny | 0 to 5 mph WSW | 1% |
| Sunday Night | 74°F | Partly Cloudy | 0 mph | 1% |
| Monday | 99°F | Mostly Sunny | 0 to 5 mph WSW | 4% |
| Monday Night | 71°F | Partly Cloudy | 0 mph | 11% |
| Tuesday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 15% |
| Tuesday Night | 67°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 mph NNE | 15% |
| Wednesday | 91°F | Sunny | 5 to 10 mph N | 2% |
| Wednesday Night | 64°F | Mostly Clear | 5 mph NNE | 2% |
| Thursday | 89°F | Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 63°F | Mostly Clear | 5 mph NNE | 3% |
| Friday | 90°F | Sunny | 5 to 10 mph NNE | 0% |
| Friday Night | 64°F | Mostly Clear | 0 to 5 mph NNE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sumner, MS
Last spring frost
Mar 17
First fall frost
Nov 7
Growing season
233 days
Hardiness zone
8b
Explore more for Sumner, MS: full frost dates · planting calendar · Mississippi frost dates
Climate data from the nearest NOAA station, Lambert 1W, Ms (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.