Koosharem, UT Weather & Growing Conditions
Tonight
44°F
Isolated Showers And Thunderstorms then Partly Cloudy
Isolated showers and thunderstorms before midnight. Partly cloudy. Low around 44, with temperatures rising to around 46 overnight. South southwest wind 2 to 6 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Isolated Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph SSW | 24% |
| Saturday | 72°F | Sunny | 1 to 13 mph SW | 4% |
| Saturday Night | 41°F | Mostly Clear | 2 to 12 mph N | 0% |
| Sunday | 74°F | Sunny | 1 to 7 mph NNW | 0% |
| Sunday Night | 44°F | Partly Cloudy | 2 to 9 mph ENE | 0% |
| Monday | 75°F | Mostly Sunny | 2 to 9 mph SSE | 7% |
| Monday Night | 46°F | Chance Showers And Thunderstorms | 3 to 7 mph SSE | 35% |
| Tuesday | 70°F | Showers And Thunderstorms Likely | 2 to 9 mph SE | 71% |
| Tuesday Night | 42°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph SSE | 28% |
| Wednesday | 72°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph SSE | 20% |
| Wednesday Night | 44°F | Mostly Clear | 2 to 6 mph SE | 8% |
| Thursday | 73°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 7 mph SE | 17% |
| Thursday Night | 46°F | Slight Chance Showers And Thunderstorms | 6 mph SSE | 17% |
| Friday | 73°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph S | 31% |
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
5b
Explore more for Koosharem, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, Koosharem, Ut (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.