Koshkonong, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Koshkonong, a town in Oregon County, Missouri.
Tonight
70°F
Clear
Clear, with a low around 70. Heat index values as high as 93. Southwest wind around 2 mph.
7-day forecast for Koshkonong
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Clear | 2 mph SW | 3% |
| Saturday | 98°F | Sunny | 2 to 8 mph SW | 1% |
| Saturday Night | 69°F | Mostly Clear | 6 mph SW | 0% |
| Sunday | 97°F | Mostly Sunny | 2 to 8 mph W | 0% |
| Sunday Night | 68°F | Mostly Cloudy | 5 mph N | 13% |
| Monday | 90°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph N | 53% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 8 mph N | 53% |
| Tuesday | 82°F | Mostly Sunny | 9 mph N | 12% |
| Tuesday Night | 55°F | Partly Cloudy | 6 to 10 mph N | 7% |
| Wednesday | 80°F | Sunny | 7 mph N | 1% |
| Wednesday Night | 54°F | Mostly Clear | 6 mph NE | 0% |
| Thursday | 81°F | Sunny | 7 mph NE | 3% |
| Thursday Night | 56°F | Partly Cloudy | 6 mph NE | 4% |
| Friday | 81°F | Mostly Sunny | 7 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Koshkonong (36.597, -91.646). Updated through the day.
Growing snapshot for Koshkonong
Last spring frost
Apr 12
First fall frost
Oct 24
Growing season
194 days
Hardiness zone
7a
More local growing data for Koshkonong: nearby ZIP 65692 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mammoth Spring, Ar (10.8 mi from Koshkonong). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.