Dayton, IN Weather & Growing Conditions
This Afternoon
81°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 81. South southwest wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Chance Showers And Thunderstorms | 5 mph SSW | 31% |
| Tonight | 69°F | Chance Showers And Thunderstorms | 5 mph SSE | 29% |
| Sunday | 80°F | Chance Showers And Thunderstorms | 1 to 9 mph N | 58% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 13 mph NE | 60% |
| Monday | 68°F | Chance Showers And Thunderstorms | 12 to 15 mph ENE | 53% |
| Monday Night | 53°F | Chance Showers And Thunderstorms | 9 to 14 mph ENE | 48% |
| Tuesday | 67°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 34% |
| Tuesday Night | 53°F | Chance Showers And Thunderstorms | 7 to 13 mph NE | 34% |
| Wednesday | 68°F | Mostly Cloudy | 9 mph NNE | 13% |
| Wednesday Night | 53°F | Mostly Cloudy | 3 to 9 mph NNE | 11% |
| Thursday | 70°F | Mostly Cloudy | 3 to 8 mph NNE | 2% |
| Thursday Night | 54°F | Mostly Cloudy | 2 to 8 mph NNE | 6% |
| Friday | 73°F | Partly Sunny | 2 to 8 mph NNE | 5% |
| Friday Night | 52°F | Partly Cloudy | 2 to 8 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dayton, IN
Last spring frost
Apr 20
First fall frost
Oct 20
Growing season
182 days
Hardiness zone
6a
Explore more for Dayton, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Lafayette 8 S, In (8.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.