Westport, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Westport, a town in Decatur County, Indiana.
This Afternoon
90°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly sunny. High near 90, with temperatures falling to around 88 in the afternoon. West southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Westport
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 90°F | Chance Showers And Thunderstorms | 5 mph WSW | 41% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 mph SSE | 30% |
| Sunday | 89°F | Mostly Sunny | 5 mph WSW | 12% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 mph NNE | 62% |
| Monday | 76°F | Chance Showers And Thunderstorms | 8 mph NE | 53% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 5 to 9 mph NE | 53% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 7 mph NE | 41% |
| Tuesday Night | 58°F | Chance Showers And Thunderstorms | 3 to 8 mph NE | 41% |
| Wednesday | 71°F | Chance Showers And Thunderstorms | 6 mph NNE | 37% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 6 mph NNE | 35% |
| Thursday | 72°F | Partly Sunny | 2 to 6 mph NNE | 8% |
| Thursday Night | 56°F | Mostly Cloudy | 2 to 6 mph NNE | 7% |
| Friday | 74°F | Partly Sunny | 2 to 7 mph NNE | 7% |
| Friday Night | 54°F | Partly Cloudy | 2 to 7 mph NE | 7% |
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
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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.