Fillmore, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fillmore, a city in Millard County, Utah.
Today
94°F
Smoke
Smoke. Sunny, with a high near 94. West wind around 7 mph.
7-day forecast for Fillmore
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Smoke | 7 mph W | 0% |
| Tonight | 64°F | Smoke | 2 to 6 mph ESE | 0% |
| Wednesday | 95°F | Smoke | 2 to 7 mph WSW | 0% |
| Wednesday Night | 67°F | Smoke | 7 mph SE | 0% |
| Thursday | 99°F | Areas Of Smoke then Sunny | 2 to 7 mph SW | 0% |
| Thursday Night | 69°F | Mostly Clear | 7 mph ESE | 0% |
| Friday | 100°F | Sunny | 1 to 6 mph SW | 0% |
| Friday Night | 70°F | Mostly Clear | 6 mph SSE | 0% |
| Saturday | 100°F | Sunny | 1 to 6 mph SSW | 3% |
| Saturday Night | 72°F | Partly Cloudy | 7 mph SSE | 5% |
| Sunday | 99°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 12% |
| Sunday Night | 73°F | Partly Cloudy | 10 mph S | 9% |
| Monday | 97°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 12 mph SW | 18% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 9 mph SSW | 18% |
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 Aug 4, 2026.