Fillmore, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fillmore, a city in Millard County, Utah.
Overnight
51°F
Mostly Clear
Mostly clear, with a low around 51. South southwest wind around 2 mph.
7-day forecast for Fillmore
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Clear | 2 mph SSW | 2% |
| Saturday | 73°F | Sunny | 1 to 7 mph W | 2% |
| Saturday Night | 48°F | Mostly Clear | 2 to 6 mph E | 2% |
| Sunday | 76°F | Sunny | 1 to 6 mph NW | 0% |
| Sunday Night | 49°F | Partly Cloudy | 2 to 6 mph ENE | 0% |
| Monday | 80°F | Mostly Sunny | 5 mph SW | 0% |
| Monday Night | 53°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph E | 26% |
| Tuesday | 76°F | Showers And Thunderstorms Likely | 3 mph SSW | 70% |
| Tuesday Night | 49°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph SE | 21% |
| Wednesday | 80°F | Sunny | 1 to 5 mph SW | 6% |
| Wednesday Night | 51°F | Mostly Clear | 5 mph ESE | 2% |
| Thursday | 83°F | Sunny | 3 mph SSW | 1% |
| Thursday Night | 55°F | Partly Cloudy | 6 mph SE | 3% |
| Friday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 mph S | 17% |
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 Sep 19, 2026.