Port Gibson, MS Weather & Growing Conditions
Today
75°F
Mostly Sunny
Mostly sunny. High near 75, with temperatures falling to around 70 in the afternoon. Northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Tonight | 44°F | Mostly Clear then Patchy Fog | 0 mph | 0% |
| Thursday | 78°F | Patchy Fog then Sunny | 0 mph | 0% |
| Thursday Night | 46°F | Partly Cloudy | 0 mph | 0% |
| Friday | 78°F | Sunny | 0 to 10 mph N | 0% |
| Friday Night | 43°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Saturday | 69°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 mph | 3% |
| Monday | 70°F | Sunny | 0 to 5 mph N | 3% |
| Monday Night | 37°F | Mostly Clear | 0 mph | 3% |
| Tuesday | 73°F | Sunny | 0 mph | 3% |
| Tuesday Night | 39°F | Mostly Clear | 0 mph | 3% |
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 Nov 4, 2026.