Port Gibson, MS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Gibson, a city in Claiborne County, Mississippi.
Tonight
71°F
Clear
Clear, with a low around 71. Southeast wind around 0 mph.
7-day forecast for Port Gibson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Clear | 0 mph | 0% |
| Saturday | 96°F | Sunny | 0 mph | 1% |
| Saturday Night | 73°F | Clear | 0 mph | 0% |
| Sunday | 96°F | Sunny | 0 to 5 mph SW | 1% |
| Sunday Night | 74°F | Mostly Clear | 0 mph | 1% |
| Monday | 95°F | Mostly Sunny | 0 to 5 mph NNW | 9% |
| Monday Night | 73°F | Partly Cloudy | 0 mph | 14% |
| Tuesday | 95°F | Sunny | 0 to 5 mph N | 6% |
| Tuesday Night | 72°F | Mostly Clear | 0 to 5 mph NE | 6% |
| Wednesday | 92°F | Sunny | 5 to 10 mph NNE | 2% |
| Wednesday Night | 69°F | Mostly Clear | 0 to 5 mph NNE | 2% |
| Thursday | 90°F | Sunny | 5 to 10 mph NNE | 1% |
| Thursday Night | 67°F | Mostly Clear | 0 to 5 mph NNE | 1% |
| Friday | 88°F | Sunny | 5 to 10 mph NE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Port Gibson (31.956, -90.983). Updated through the day.
Growing snapshot for Port Gibson
Last spring frost
Mar 17
First fall frost
Nov 12
Growing season
241 days
Hardiness zone
8b
More local growing data for Port Gibson: nearby ZIP 39150 weather · frost dates · planting calendar · Mississippi frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Port Gibson 1 Ne, Ms (0.8 mi from Port Gibson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.