Port Gibson, MS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Gibson, a city in Claiborne County, Mississippi.
Today
74°F
Mostly Sunny
Mostly sunny. High near 74, with temperatures falling to around 69 in the afternoon. Northwest wind 0 to 5 mph.
7-day forecast for Port Gibson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Mostly Sunny | 0 to 5 mph NW | 5% |
| Tonight | 44°F | Mostly Clear then Patchy Fog | 0 mph | 0% |
| Thursday | 77°F | Patchy Fog then Sunny | 0 mph | 0% |
| Thursday Night | 46°F | Partly Cloudy | 0 mph | 0% |
| Friday | 77°F | Sunny | 0 to 10 mph N | 0% |
| Friday Night | 43°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Saturday | 68°F | Mostly Sunny | 5 to 10 mph NNE | 0% |
| Saturday Night | 38°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 65°F | Mostly Sunny | 0 to 10 mph N | 2% |
| Sunday Night | 36°F | Partly Cloudy | 0 to 5 mph N | 3% |
| Monday | 69°F | Sunny | 0 to 5 mph N | 3% |
| Monday Night | 36°F | Mostly Clear | 0 mph | 3% |
| Tuesday | 73°F | Sunny | 0 mph | 3% |
| Tuesday Night | 38°F | Partly Cloudy | 0 mph | 3% |
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 Nov 4, 2026.