Mier, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mier, a community in Grant County, Indiana.
Today
79°F
Showers And Thunderstorms
Showers and thunderstorms before 3pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Mier
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Showers And Thunderstorms | 5 to 10 mph SE | 76% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 5 mph S | 54% |
| Sunday | 78°F | Chance Showers And Thunderstorms | 5 to 10 mph NW | 60% |
| Sunday Night | 55°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 58% |
| Monday | 66°F | Chance Showers And Thunderstorms | 15 mph NE | 54% |
| Monday Night | 51°F | Chance Rain Showers | 15 to 20 mph NE | 40% |
| Tuesday | 66°F | Slight Chance Rain Showers | 15 mph NE | 20% |
| Tuesday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 29% |
| Wednesday | 66°F | Chance Rain Showers | 10 mph NE | 29% |
| Wednesday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 15% |
| Thursday | 68°F | Mostly Cloudy | 5 to 10 mph N | 4% |
| Thursday Night | 52°F | Mostly Cloudy | 5 to 10 mph NE | 4% |
| Friday | 71°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Friday Night | 50°F | Partly Cloudy | 5 to 10 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Mier (40.575, -85.823). Updated through the day.
Growing snapshot for Mier
Last spring frost
Apr 26
First fall frost
Oct 20
Growing season
175 days
Hardiness zone
6a
More local growing data for Mier: nearby ZIP 46919 weather · frost dates · planting calendar · Indiana frost dates
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Shamrock Lakes
Sims
Swayzee
Sweetser
Upland
Van Buren
Climate data from the nearest NOAA station, Marion 2 N, In (11.1 mi from Mier). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.