Junction City, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Junction City, a village in Madison County, Missouri.
Today
64°F
Partly Sunny
Partly sunny. High near 64, with temperatures falling to around 60 in the afternoon. West wind 6 to 9 mph.
7-day forecast for Junction City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 64°F | Partly Sunny | 6 to 9 mph W | 0% |
| Tonight | 39°F | Mostly Clear | 1 to 5 mph SW | 0% |
| Thursday | 68°F | Sunny | 2 to 7 mph W | 1% |
| Thursday Night | 40°F | Partly Cloudy | 3 mph NW | 10% |
| Friday | 61°F | Partly Sunny | 3 to 9 mph N | 1% |
| Friday Night | 32°F | Partly Cloudy | 1 to 6 mph N | 0% |
| Saturday | 58°F | Mostly Sunny | 1 to 5 mph N | 0% |
| Saturday Night | 29°F | Partly Cloudy | 2 mph N | 0% |
| Sunday | 63°F | Sunny | 0 to 6 mph NW | 1% |
| Sunday Night | 30°F | Clear | 2 mph NW | 0% |
| Monday | 69°F | Sunny | 0 to 5 mph W | 0% |
| Monday Night | 34°F | Clear | 0 to 3 mph SW | 1% |
| Tuesday | 72°F | Sunny | 0 to 5 mph W | 1% |
| Tuesday Night | 37°F | Mostly Clear | 2 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Junction City (37.574, -90.293). Updated through the day.
Growing snapshot for Junction City
Last spring frost
Apr 21
First fall frost
Oct 16
Growing season
174 days
Hardiness zone
6b
More local growing data for Junction City: nearby ZIP 63645 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Fredericktown, Mo (2.4 mi from Junction City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.