Eureka, MO Weather & Growing Conditions
Today
59°F
Slight Chance Drizzle then Mostly Cloudy
A slight chance of drizzle before noon. Mostly cloudy, with a high near 59. West wind 5 to 10 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Slight Chance Drizzle then Mostly Cloudy | 5 to 10 mph W | 0% |
| Tonight | 42°F | Partly Cloudy | 3 mph SW | 0% |
| Thursday | 63°F | Sunny | 3 to 8 mph W | 9% |
| Thursday Night | 43°F | Isolated Rain Showers then Mostly Cloudy | 3 mph NW | 16% |
| Friday | 57°F | Partly Sunny | 3 to 7 mph N | 4% |
| Friday Night | 33°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 56°F | Mostly Sunny | 2 mph N | 0% |
| Saturday Night | 32°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 62°F | Sunny | 0 to 3 mph NW | 1% |
| Sunday Night | 33°F | Clear | 0 mph | 0% |
| Monday | 67°F | Sunny | 2 mph W | 0% |
| Monday Night | 38°F | Clear | 2 mph W | 1% |
| Tuesday | 70°F | Sunny | 2 mph W | 1% |
| Tuesday Night | 40°F | Mostly Clear | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Eureka, MO
Last spring frost
Apr 12
First fall frost
Oct 23
Growing season
193 days
Hardiness zone
6b
Explore more for Eureka, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, St Louis Sprt Of S L Ap, Mo (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.