Fairfield, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a town in Utah County, Utah.
Today
93°F
Patchy Smoke
Patchy smoke. Sunny. High near 93, with temperatures falling to around 91 in the afternoon. Northwest wind 1 to 12 mph.
7-day forecast for Fairfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Patchy Smoke | 1 to 12 mph NW | 0% |
| Tonight | 55°F | Patchy Smoke | 2 to 12 mph NNW | 0% |
| Wednesday | 93°F | Patchy Smoke | 1 to 12 mph WNW | 0% |
| Wednesday Night | 58°F | Patchy Smoke | 2 to 12 mph NNW | 0% |
| Thursday | 98°F | Patchy Smoke then Sunny | 0 to 6 mph SE | 0% |
| Thursday Night | 62°F | Mostly Clear | 1 to 10 mph NE | 0% |
| Friday | 100°F | Sunny | 1 to 5 mph SE | 0% |
| Friday Night | 64°F | Mostly Clear | 1 to 10 mph ENE | 0% |
| Saturday | 101°F | Sunny | 0 to 6 mph SSE | 1% |
| Saturday Night | 66°F | Partly Cloudy | 1 to 9 mph NNE | 1% |
| Sunday | 99°F | Mostly Sunny | 0 to 7 mph S | 2% |
| Sunday Night | 68°F | Mostly Cloudy | 2 to 9 mph NW | 8% |
| Monday | 97°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 7 mph SSW | 12% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 8 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov) for Fairfield (40.236, -112.075). Updated through the day.
Growing snapshot for Fairfield
Last spring frost
Jun 2
First fall frost
Sep 16
Growing season
103 days
Hardiness zone
6a
More local growing data for Fairfield: nearby ZIP 84013 weather · frost dates · planting calendar · Utah frost dates
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Climate data from the nearest NOAA station, Fairfield, Ut (2.3 mi from Fairfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.