Port Gibson, MS Weather & Growing Conditions
This Afternoon
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 100. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 95°F | Sunny | 5 mph E | 0% |
| Tonight | 71°F | Clear | 0 mph | 0% |
| Saturday | 97°F | Sunny | 0 mph | 1% |
| Saturday Night | 73°F | Clear | 0 mph | 0% |
| Sunday | 97°F | Sunny | 0 to 5 mph SW | 1% |
| Sunday Night | 75°F | Mostly Clear | 0 mph | 1% |
| Monday | 96°F | Mostly Sunny | 0 to 5 mph NNW | 9% |
| Monday Night | 73°F | Partly Cloudy | 0 mph | 14% |
| Tuesday | 96°F | Sunny | 0 to 5 mph N | 6% |
| Tuesday Night | 72°F | Mostly Clear | 0 to 5 mph NE | 6% |
| Wednesday | 93°F | Sunny | 0 to 10 mph NNE | 2% |
| Wednesday Night | 70°F | Mostly Clear | 0 to 5 mph NNE | 2% |
| Thursday | 91°F | Sunny | 5 to 10 mph NNE | 1% |
| Thursday Night | 68°F | Mostly Clear | 0 to 5 mph NNE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Gibson, MS
Last spring frost
Mar 17
First fall frost
Nov 12
Growing season
241 days
Hardiness zone
8b
Explore more for Port Gibson, MS: full frost dates · planting calendar · Mississippi frost dates
Climate data from the nearest NOAA station, Port Gibson 1 Ne, Ms (0.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.