Eureka, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Eureka, a community in Gratiot County, Michigan.
Today
86°F
Sunny
Sunny, with a high near 86. Southwest wind around 9 mph, with gusts as high as 18 mph.
7-day forecast for Eureka
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 9 mph SW | 0% |
| Tonight | 61°F | Mostly Clear | 5 to 8 mph SSW | 0% |
| Wednesday | 84°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 43% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 to 9 mph W | 81% |
| Thursday | 80°F | Showers And Thunderstorms | 6 mph W | 81% |
| Thursday Night | 60°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph SE | 37% |
| Friday | 84°F | Mostly Sunny | 1 to 5 mph SW | 12% |
| Friday Night | 61°F | Mostly Clear | 5 mph WSW | 12% |
| Saturday | 87°F | Sunny | 5 to 13 mph SW | 4% |
| Saturday Night | 65°F | Mostly Clear then Chance Rain Showers | 5 to 12 mph SW | 29% |
| Sunday | 88°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 8 to 16 mph SW | 29% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms | 7 to 15 mph WSW | 52% |
| Monday | 86°F | Chance Rain Showers | 9 mph W | 52% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 to 9 mph WSW | 48% |
Forecast source: National Weather Service (api.weather.gov) for Eureka (43.104, -84.514). Updated through the day.
Growing snapshot for Eureka
Last spring frost
Apr 28
First fall frost
Oct 24
Growing season
179 days
Hardiness zone
6a
More local growing data for Eureka: nearby ZIP 48806 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Saint Johns, Mi (12.4 mi from Eureka). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.