Sumner, MS Weather & Growing Conditions
This Afternoon
99°F
Sunny
Sunny, with a high near 99. Heat index values as high as 101. East southeast wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Sunny | 0 mph | 0% |
| Tonight | 73°F | Clear | 0 mph | 0% |
| Saturday | 100°F | Sunny | 0 mph | 2% |
| Saturday Night | 74°F | Mostly Clear | 0 mph | 0% |
| Sunday | 100°F | Sunny | 0 to 5 mph WSW | 0% |
| Sunday Night | 74°F | Partly Cloudy | 0 mph | 0% |
| Monday | 99°F | Mostly Sunny | 0 to 5 mph W | 7% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 0 mph | 15% |
| Tuesday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph N | 16% |
| Tuesday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph N | 16% |
| Wednesday | 91°F | Sunny | 5 to 10 mph NNE | 6% |
| Wednesday Night | 65°F | Mostly Clear | 5 mph NNE | 6% |
| Thursday | 89°F | Sunny | 5 to 10 mph NNE | 4% |
| Thursday Night | 64°F | Mostly Clear | 5 mph NNE | 4% |
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 (15.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.