Monticello, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monticello, a city in San Juan County, Utah.
Today
71°F
Sunny
Sunny, with a high near 71. South southwest wind 5 to 10 mph, with gusts as high as 25 mph.
7-day forecast for Monticello
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Sunny | 5 to 10 mph SSW | 7% |
| Tonight | 49°F | Mostly Clear | 5 to 10 mph W | 2% |
| Sunday | 70°F | Sunny | 0 to 5 mph NW | 1% |
| Sunday Night | 49°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Monday | 71°F | Mostly Sunny | 5 to 10 mph SE | 0% |
| Monday Night | 52°F | Partly Cloudy | 5 mph SSE | 7% |
| Tuesday | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 to 15 mph SSE | 56% |
| Tuesday Night | 49°F | Showers And Thunderstorms Likely | 5 to 10 mph S | 70% |
| Wednesday | 67°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 46% |
| Wednesday Night | 51°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 15% |
| Thursday | 68°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSE | 26% |
| Thursday Night | 52°F | Chance Showers And Thunderstorms | 5 mph S | 31% |
| Friday | 67°F | Chance Rain Showers | 5 mph SSE | 51% |
| Friday Night | 51°F | Chance Showers And Thunderstorms | 5 mph S | 38% |
Forecast source: National Weather Service (api.weather.gov) for Monticello (37.869, -109.336). Updated through the day.
Growing snapshot for Monticello
Last spring frost
May 19
First fall frost
Oct 2
Growing season
133 days
Hardiness zone
6b
More local growing data for Monticello: nearby ZIP 84535 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Aneth
Blanding
Bluff
Halchita
Halls Crossing
La Sal
Mexican Hat
Montezuma Creek
Oljato-Monument Valley
Tselakai Dezza
White Mesa
Climate data from the nearest NOAA station, Monticello 2E, Ut (1.7 mi from Monticello). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.