Westport, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Westport, a town in Decatur County, Indiana.
Today
89°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between noon and 4pm, then showers and thunderstorms likely between 4pm and 5pm, then a chance of showers and thunderstorms. Partly sunny. High near 89, with temperatures falling to around 86 in the afternoon. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Westport
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph S | 55% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 mph SSE | 47% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph WSW | 19% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 8 mph NNE | 51% |
| Monday | 74°F | Rain Showers Likely | 9 mph ENE | 58% |
| Monday Night | 57°F | Showers And Thunderstorms Likely | 7 to 10 mph NE | 58% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 8 mph NE | 29% |
| Tuesday Night | 57°F | Slight Chance Showers And Thunderstorms | 3 to 9 mph NNE | 19% |
| Wednesday | 71°F | Slight Chance Rain Showers | 2 to 6 mph NNE | 22% |
| Wednesday Night | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 6 mph NNE | 22% |
| Thursday | 71°F | Partly Sunny | 3 to 7 mph N | 10% |
| Thursday Night | 56°F | Mostly Cloudy | 2 to 7 mph NNE | 10% |
| Friday | 73°F | Mostly Sunny | 3 to 7 mph NNE | 3% |
| Friday Night | 53°F | Partly Cloudy | 3 to 7 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Westport (39.176, -85.575). Updated through the day.
Growing snapshot for Westport
Last spring frost
Apr 21
First fall frost
Oct 21
Growing season
180 days
Hardiness zone
6b
More local growing data for Westport: nearby ZIP 47283 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Adams
Andersonville
Burney
Clarksburg
Greensburg
Lake Santee
Letts
Milford
Millhousen
New Point
Sardinia
St. Omer
St. Paul
Climate data from the nearest NOAA station, N Vernon 2 Ese, In (11.6 mi from Westport). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.