Koosharem, UT Weather & Growing Conditions
Overnight
43°F
Mostly Clear
Mostly clear, with a low around 43. West southwest wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Mostly Clear | 7 mph WSW | 8% |
| Saturday | 57°F | Sunny | 5 to 12 mph WSW | 6% |
| Saturday Night | 41°F | Mostly Clear | 6 to 10 mph NW | 0% |
| Sunday | 59°F | Sunny | 3 to 9 mph NW | 0% |
| Sunday Night | 44°F | Partly Cloudy | 9 mph E | 0% |
| Monday | 61°F | Mostly Sunny | 5 to 8 mph S | 7% |
| Monday Night | 46°F | Chance Showers And Thunderstorms | 6 to 9 mph SSE | 34% |
| Tuesday | 56°F | Showers And Thunderstorms | 6 to 9 mph S | 76% |
| Tuesday Night | 43°F | Chance Showers And Thunderstorms then Partly Cloudy | 7 mph S | 31% |
| Wednesday | 58°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph WSW | 20% |
| Wednesday Night | 44°F | Mostly Clear | 5 to 8 mph ESE | 6% |
| Thursday | 60°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph SE | 16% |
| Thursday Night | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph ESE | 16% |
| Friday | 60°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph S | 28% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Koosharem, UT
Last spring frost
Jun 6
First fall frost
Sep 21
Growing season
104 days
Hardiness zone
6a
Explore more for Koosharem, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, Koosharem, Ut (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.