Union Mills, IN Weather & Growing Conditions
Today
66°F
Chance Rain Showers
A chance of rain showers before 2pm. Mostly cloudy. High near 66, with temperatures falling to around 60 in the afternoon. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Chance Rain Showers | 15 mph SW | 37% |
| Tonight | 46°F | Cloudy | 10 to 15 mph SW | 13% |
| Thursday | 55°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph SW | 28% |
| Thursday Night | 40°F | Rain Showers | 5 to 10 mph W | 94% |
| Friday | 50°F | Rain Showers Likely | 10 to 15 mph NW | 55% |
| Friday Night | 35°F | Chance Rain Showers | 5 to 15 mph NW | 32% |
| Saturday | 51°F | Mostly Sunny | 5 to 10 mph NW | 10% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph W | 4% |
| Sunday | 54°F | Mostly Sunny | 5 to 10 mph W | 5% |
| Sunday Night | 33°F | Mostly Clear | 5 mph W | 6% |
| Monday | 59°F | Sunny | 5 to 10 mph SW | 4% |
| Monday Night | 37°F | Mostly Clear | 5 mph SW | 1% |
| Tuesday | 61°F | Sunny | 5 to 10 mph W | 1% |
| Tuesday Night | 36°F | Partly Cloudy | 0 to 5 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Union Mills, IN
Last spring frost
Apr 29
First fall frost
Oct 13
Growing season
166 days
Hardiness zone
5b
Explore more for Union Mills, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Wanatah 2 Wnw, In (8.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.