Fillmore, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fillmore, a city in Millard County, Utah.
Tonight
38°F
Partly Cloudy then Chance Rain And Snow
A chance of rain and snow after 5am. Partly cloudy. Low around 38, with temperatures rising to around 40 overnight. East wind around 3 mph. Chance of precipitation is 50%.
7-day forecast for Fillmore
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 38°F | Partly Cloudy then Chance Rain And Snow | 3 mph E | 51% |
| Wednesday | 44°F | Chance Rain And Snow | 3 mph SW | 51% |
| Wednesday Night | 32°F | Partly Cloudy | 2 mph ESE | 7% |
| Thursday | 48°F | Mostly Sunny | 2 mph NW | 0% |
| Thursday Night | 34°F | Partly Cloudy | 1 mph ENE | 0% |
| Friday | 49°F | Sunny | 0 to 3 mph N | 0% |
| Friday Night | 34°F | Mostly Clear | 2 mph ENE | 0% |
| Saturday | 53°F | Sunny | 2 mph N | 0% |
| Saturday Night | 38°F | Mostly Clear | 1 mph ESE | 0% |
| Sunday | 61°F | Sunny | 2 mph W | 0% |
| Sunday Night | 43°F | Partly Cloudy | 2 mph ESE | 0% |
| Monday | 61°F | Mostly Sunny | 2 mph WSW | 1% |
| Monday Night | 44°F | Partly Cloudy | 2 mph SSE | 1% |
| Tuesday | 60°F | Mostly Sunny | 2 mph WNW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Fillmore (38.964, -112.339). Updated through the day.
Growing snapshot for Fillmore
Last spring frost
May 4
First fall frost
Oct 14
Growing season
160 days
Hardiness zone
6a
More local growing data for Fillmore: nearby ZIP 84631 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Fillmore, Ut (4.7 mi from Fillmore). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.