Boulder, UT Weather & Growing Conditions
Overnight
51°F
Mostly Clear
Mostly clear, with a low around 51. Northwest wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Clear | 2 mph NW | 5% |
| Saturday | 67°F | Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph W | 13% |
| Saturday Night | 49°F | Mostly Clear | 1 to 5 mph NW | 1% |
| Sunday | 68°F | Sunny | 1 to 6 mph WSW | 0% |
| Sunday Night | 51°F | Partly Cloudy | 0 to 5 mph NNE | 0% |
| Monday | 68°F | Mostly Sunny | 0 to 7 mph E | 1% |
| Monday Night | 51°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 40% |
| Tuesday | 64°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 6 mph ESE | 59% |
| Tuesday Night | 49°F | Chance Showers And Thunderstorms | 0 to 3 mph NNW | 40% |
| Wednesday | 65°F | Chance Showers And Thunderstorms | 0 to 5 mph ESE | 26% |
| Wednesday Night | 50°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph ENE | 19% |
| Thursday | 66°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 6 mph E | 31% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 0 to 3 mph ENE | 25% |
| Friday | 65°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 6 mph SSE | 49% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Boulder, UT
Last spring frost
May 4
First fall frost
Oct 14
Growing season
160 days
Hardiness zone
7a
Explore more for Boulder, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, Boulder, Ut (3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.