Dayton, IN Weather & Growing Conditions
This Afternoon
68°F
Slight Chance Light Rain
A slight chance of rain before 2pm. Mostly cloudy. High near 68, with temperatures falling to around 61 in the afternoon. Southwest wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Slight Chance Light Rain | 13 to 16 mph SW | 22% |
| Tonight | 47°F | Cloudy | 7 to 12 mph SW | 6% |
| Thursday | 60°F | Mostly Cloudy | 9 to 16 mph SW | 4% |
| Thursday Night | 41°F | Chance Light Rain then Scattered Rain Showers | 3 to 9 mph W | 46% |
| Friday | 54°F | Scattered Rain Showers | 5 to 13 mph NNW | 29% |
| Friday Night | 35°F | Partly Cloudy | 5 to 12 mph NW | 8% |
| Saturday | 54°F | Mostly Sunny | 7 mph NW | 0% |
| Saturday Night | 31°F | Partly Cloudy | 1 to 5 mph WNW | 1% |
| Sunday | 58°F | Sunny | 2 to 10 mph W | 3% |
| Sunday Night | 32°F | Mostly Clear | 2 to 6 mph W | 3% |
| Monday | 62°F | Sunny | 2 to 8 mph SW | 2% |
| Monday Night | 37°F | Mostly Clear | 6 mph SW | 1% |
| Tuesday | 66°F | Sunny | 3 to 7 mph W | 1% |
| Tuesday Night | 36°F | Mostly Clear | 1 to 5 mph NW | 1% |
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 Nov 4, 2026.