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

93°F

Patchy Smoke

Patchy smoke. Sunny. High near 93, with temperatures falling to around 91 in the afternoon. North northwest wind 0 to 8 mph.

7-day forecast for Cottonwood Heights

When	Temp	Forecast	Wind	Precip
Today	93°F	Patchy Smoke	0 to 8 mph NNW	0%
Tonight	64°F	Patchy Smoke	0 to 8 mph ENE	0%
Wednesday	95°F	Patchy Smoke	1 to 7 mph NW	0%
Wednesday Night	67°F	Patchy Smoke then Mostly Clear	3 to 7 mph ENE	0%
Thursday	100°F	Sunny	1 to 6 mph SSW	0%
Thursday Night	70°F	Mostly Clear	2 to 7 mph E	0%
Friday	103°F	Sunny	1 to 7 mph S	0%
Friday Night	73°F	Mostly Clear	2 to 8 mph E	0%
Saturday	103°F	Sunny	2 to 7 mph SSW	0%
Saturday Night	75°F	Mostly Clear	2 to 6 mph ESE	2%
Sunday	101°F	Mostly Sunny	3 to 7 mph SSW	8%
Sunday Night	74°F	Partly Cloudy	5 to 8 mph SE	9%
Monday	99°F	Mostly Sunny then Slight Chance Showers And Thunderstorms	8 mph SSW	15%
Monday Night	71°F	Slight Chance Showers And Thunderstorms	7 mph SSE	16%

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

More local growing data for Cottonwood Heights: nearby ZIP 84093 weather · frost dates · planting calendar · Utah frost dates

Nearby towns & communities

Alta Bluffdale Brighton Copperton metro township Draper Emigration Canyon metro township Granite Herriman Holladay Kearns metro township Magna metro township Midvale Millcreek Murray Riverton Salt Lake City Sandy South Jordan South Salt Lake Taylorsville West Jordan West Valley City White City metro township

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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 Aug 4, 2026.