Monticello, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monticello, a city in San Juan County, Utah.
Today
92°F
Patchy Smoke
Patchy smoke before 4pm. Sunny, with a high near 92. West southwest wind 5 to 10 mph, with gusts as high as 25 mph.
7-day forecast for Monticello
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Patchy Smoke | 5 to 10 mph WSW | 1% |
| Tonight | 64°F | Patchy Smoke | 5 to 15 mph WNW | 0% |
| Wednesday | 90°F | Sunny | 5 to 10 mph NW | 0% |
| Wednesday Night | 62°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Thursday | 90°F | Sunny | 5 to 10 mph NW | 0% |
| Thursday Night | 63°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Friday | 91°F | Sunny | 5 to 10 mph NW | 0% |
| Friday Night | 64°F | Mostly Clear | 5 to 10 mph W | 0% |
| Saturday | 91°F | Sunny | 5 to 10 mph SW | 1% |
| Saturday Night | 64°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 90°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph WSW | 15% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 21% |
| Monday Night | 61°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 mph WSW | 23% |
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 Aug 4, 2026.