Galena, MO Weather & Growing Conditions
Tonight
71°F
Clear
Clear. Low around 71, with temperatures rising to around 73 overnight. Heat index values as high as 97. South wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Clear | 3 mph S | 12% |
| Saturday | 98°F | Sunny | 2 to 8 mph SW | 1% |
| Saturday Night | 71°F | Mostly Clear | 6 mph S | 1% |
| Sunday | 96°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph SW | 20% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 3 mph NE | 66% |
| Monday | 86°F | Showers And Thunderstorms Likely | 0 to 8 mph N | 67% |
| Monday Night | 63°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 to 8 mph N | 54% |
| Tuesday | 80°F | Partly Sunny | 5 to 9 mph N | 14% |
| Tuesday Night | 57°F | Partly Cloudy | 2 to 9 mph NE | 7% |
| Wednesday | 81°F | Mostly Sunny | 5 mph NE | 2% |
| Wednesday Night | 56°F | Mostly Clear | 3 mph NE | 2% |
| Thursday | 82°F | Mostly Sunny | 3 mph NE | 6% |
| Thursday Night | 59°F | Partly Cloudy | 3 mph NE | 5% |
| Friday | 82°F | Mostly Sunny | 1 to 5 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Galena, MO
Last spring frost
Apr 16
First fall frost
Oct 21
Growing season
187 days
Hardiness zone
7a
Explore more for Galena, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Galena, Mo (0.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.