St. Omer, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Omer, a community in Decatur County, Indiana.
This Afternoon
68°F
Chance Light Rain
A chance of rain before 5pm. Mostly cloudy. High near 68, with temperatures falling to around 66 in the afternoon. South southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for St. Omer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Light Rain | 9 to 13 mph SSW | 26% |
| Tonight | 46°F | Mostly Cloudy | 3 to 8 mph WSW | 4% |
| Thursday | 63°F | Mostly Sunny | 5 to 12 mph SW | 0% |
| Thursday Night | 43°F | Mostly Cloudy | 2 to 6 mph WSW | 9% |
| Friday | 54°F | Mostly Cloudy | 2 to 9 mph NW | 11% |
| Friday Night | 34°F | Partly Cloudy | 3 to 7 mph NW | 10% |
| Saturday | 53°F | Mostly Sunny | 2 to 7 mph NW | 0% |
| Saturday Night | 30°F | Partly Cloudy | 3 mph NW | 0% |
| Sunday | 56°F | Sunny | 1 to 7 mph W | 0% |
| Sunday Night | 32°F | Mostly Clear | 3 mph WNW | 0% |
| Monday | 60°F | Sunny | 0 to 5 mph W | 0% |
| Monday Night | 36°F | Clear | 3 mph SW | 0% |
| Tuesday | 62°F | Sunny | 5 mph WSW | 1% |
| Tuesday Night | 37°F | Mostly Clear | 3 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov) for St. Omer (39.434, -85.593). Updated through the day.
Growing snapshot for St. Omer
Last spring frost
Apr 15
First fall frost
Oct 26
Growing season
194 days
Hardiness zone
6b
More local growing data for St. Omer: nearby ZIP 47272 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Adams
Andersonville
Burney
Clarksburg
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Lake Santee
Letts
Milford
Millhousen
New Point
Sardinia
St. Paul
Westport
Climate data from the nearest NOAA station, Greensburg, In (8.3 mi from St. Omer). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.