Letts, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Letts, a community in Decatur County, Indiana.
This Afternoon
83°F
Sunny
Sunny, with a high near 83. North northeast wind around 2 mph.
7-day forecast for Letts
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 83°F | Sunny | 2 mph NNE | 0% |
| Tonight | 63°F | Mostly Clear | 2 mph NNE | 0% |
| Wednesday | 85°F | Sunny | 2 mph NW | 0% |
| Wednesday Night | 67°F | Mostly Clear | 1 mph SSE | 2% |
| Thursday | 86°F | Mostly Sunny then Scattered Showers And Thunderstorms | 1 to 5 mph SSW | 26% |
| Thursday Night | 68°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SSW | 63% |
| Friday | 84°F | Chance Showers And Thunderstorms then Scattered Showers And Thunderstorms | 1 to 5 mph SSW | 61% |
| Friday Night | 67°F | Chance Showers And Thunderstorms | 3 mph SW | 60% |
| Saturday | 84°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 28% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SSW | 25% |
| Sunday | 87°F | Mostly Sunny | 1 to 6 mph SW | 13% |
| Sunday Night | 70°F | Partly Cloudy | 5 mph SSW | 13% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 18% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 5 mph SW | 29% |
Forecast source: National Weather Service (api.weather.gov) for Letts (39.234, -85.569). Updated through the day.
Growing snapshot for Letts
Last spring frost
Apr 21
First fall frost
Oct 21
Growing season
180 days
Hardiness zone
6b
More local growing data for Letts: nearby ZIP 47283 weather · frost dates · planting calendar · Indiana frost dates
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Adams
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Clarksburg
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Millhousen
New Point
Sardinia
St. Omer
St. Paul
Westport
Climate data from the nearest NOAA station, N Vernon 2 Ese, In (11.6 mi from Letts). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.