West Valley City, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Valley City, a city in Salt Lake County, Utah.
Today
90°F
Patchy Smoke
Patchy smoke. Sunny. High near 90, with temperatures falling to around 88 in the afternoon. West wind 2 to 10 mph.
7-day forecast for West Valley City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Patchy Smoke | 2 to 10 mph W | 0% |
| Tonight | 62°F | Patchy Smoke | 2 to 9 mph NNW | 0% |
| Wednesday | 93°F | Patchy Smoke | 3 to 9 mph SSE | 0% |
| Wednesday Night | 66°F | Patchy Smoke then Mostly Clear | 3 to 8 mph E | 0% |
| Thursday | 99°F | Sunny | 3 to 8 mph SSW | 0% |
| Thursday Night | 70°F | Mostly Clear | 2 to 8 mph ESE | 0% |
| Friday | 101°F | Sunny | 3 to 7 mph S | 0% |
| Friday Night | 74°F | Mostly Clear | 3 to 8 mph E | 0% |
| Saturday | 101°F | Sunny | 7 mph S | 0% |
| Saturday Night | 75°F | Mostly Clear | 3 to 8 mph SE | 0% |
| Sunday | 100°F | Mostly Sunny | 7 to 10 mph S | 4% |
| Sunday Night | 75°F | Partly Cloudy | 7 to 12 mph SSE | 7% |
| Monday | 98°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 to 12 mph SSW | 11% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 10 mph ENE | 14% |
Forecast source: National Weather Service (api.weather.gov) for West Valley City (40.688, -112.012). Updated through the day.
Growing snapshot for West Valley City
Last spring frost
Apr 8
First fall frost
Oct 31
Growing season
204 days
Hardiness zone
7b
More local growing data for West Valley City: nearby ZIP 84120 weather · frost dates · planting calendar · Utah frost dates
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Copperton metro township
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Herriman
Holladay
Kearns metro township
Magna metro township
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Millcreek
Murray
Riverton
Salt Lake City
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South Salt Lake
Taylorsville
West Jordan
White City metro township
Climate data from the nearest NOAA station, Salt Lake City Intl Ap, Ut (5.9 mi from West Valley City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.