Eureka, UT Weather & Growing Conditions
This Afternoon
66°F
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms before 3pm. Mostly sunny. High near 66, with temperatures falling to around 64 in the afternoon. Northwest wind around 8 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Isolated Showers And Thunderstorms | 8 mph NW | 17% |
| Tonight | 45°F | Mostly Clear | 2 to 8 mph N | 3% |
| Sunday | 68°F | Sunny | 1 to 6 mph NNE | 0% |
| Sunday Night | 46°F | Partly Cloudy | 5 mph NE | 0% |
| Monday | 74°F | Mostly Sunny | 5 mph ENE | 0% |
| Monday Night | 52°F | Mostly Cloudy | 3 mph NE | 12% |
| Tuesday | 70°F | Chance Showers And Thunderstorms | 2 to 6 mph SSE | 47% |
| Tuesday Night | 48°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 26% |
| Wednesday | 73°F | Sunny | 1 to 6 mph S | 7% |
| Wednesday Night | 50°F | Mostly Clear | 3 mph SSE | 3% |
| Thursday | 76°F | Sunny | 5 mph SSE | 1% |
| Thursday Night | 53°F | Partly Cloudy | 3 mph S | 1% |
| Friday | 77°F | Mostly Sunny | 3 to 7 mph S | 9% |
| Friday Night | 53°F | Partly Cloudy | 7 mph SSE | 12% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Eureka, UT
Last spring frost
May 15
First fall frost
Oct 1
Growing season
137 days
Hardiness zone
6b
Explore more for Eureka, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, Little Sahara Rec Area, Ut (17.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.