Cottonwood Heights, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cottonwood Heights, a city in Salt Lake County, Utah.
Today
71°F
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms before 3pm. Mostly sunny. High near 71, with temperatures falling to around 69 in the afternoon. North northwest wind 0 to 6 mph. Chance of precipitation is 20%.
7-day forecast for Cottonwood Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Isolated Showers And Thunderstorms | 0 to 6 mph NNW | 24% |
| Tonight | 49°F | Mostly Clear | 0 to 6 mph NNE | 3% |
| Sunday | 73°F | Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 48°F | Mostly Clear | 3 mph ENE | 0% |
| Monday | 79°F | Mostly Sunny | 0 to 3 mph WNW | 0% |
| Monday Night | 55°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 mph NE | 11% |
| Tuesday | 77°F | Chance Showers And Thunderstorms | 0 to 3 mph S | 46% |
| Tuesday Night | 51°F | Chance Showers And Thunderstorms | 3 mph ESE | 37% |
| Wednesday | 79°F | Sunny | 0 to 3 mph S | 11% |
| Wednesday Night | 54°F | Mostly Clear | 3 mph E | 3% |
| Thursday | 83°F | Sunny | 2 mph S | 2% |
| Thursday Night | 57°F | Partly Cloudy | 1 to 5 mph SE | 1% |
| Friday | 83°F | Mostly Sunny | 5 mph S | 7% |
| Friday Night | 58°F | Slight Chance Showers And Thunderstorms | 6 mph S | 15% |
Forecast source: National Weather Service (api.weather.gov) for Cottonwood Heights (40.614, -111.815). Updated through the day.
Growing snapshot for Cottonwood Heights
Last spring frost
Apr 29
First fall frost
Oct 22
Growing season
174 days
Hardiness zone
7b
More local growing data for Cottonwood Heights: nearby ZIP 84093 weather · frost dates · planting calendar · Utah frost dates
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Copperton metro township
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Kearns metro township
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White City metro township
Climate data from the nearest NOAA station, Cottonwood Weir, Ut (2.9 mi from Cottonwood Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.