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Millcreek, UT Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Millcreek, a city in Salt Lake County, Utah.

Tonight
52°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. West northwest wind 0 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Millcreek

WhenTempForecastWindPrecip
Tonight 52°F Showers And Thunderstorms 0 to 5 mph WNW 85%
Saturday 70°F Slight Chance Showers And Thunderstorms then Mostly Sunny 0 to 6 mph NW 16%
Saturday Night 51°F Partly Cloudy 0 to 5 mph ENE 0%
Sunday 72°F Sunny 0 to 3 mph NW 0%
Sunday Night 52°F Partly Cloudy 3 mph ENE 0%
Monday 78°F Mostly Sunny 0 to 3 mph NE 0%
Monday Night 58°F Partly Cloudy then Slight Chance Showers And Thunderstorms 3 mph ENE 11%
Tuesday 77°F Chance Showers And Thunderstorms 2 mph S 34%
Tuesday Night 56°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 1 to 5 mph ESE 26%
Wednesday 78°F Sunny 0 to 3 mph S 14%
Wednesday Night 57°F Mostly Clear 3 mph E 4%
Thursday 81°F Sunny 2 mph S 5%
Thursday Night 59°F Partly Cloudy 3 mph ESE 8%
Friday 82°F Mostly Sunny 3 mph S 9%

Forecast source: National Weather Service (api.weather.gov) for Millcreek (40.689, -111.830). Updated through the day.

Growing snapshot for Millcreek

Last spring frost
Apr 29
First fall frost
Oct 22
Growing season
174 days
Hardiness zone
7b

More local growing data for Millcreek: nearby ZIP 84117 weather · frost dates · planting calendar · Utah frost dates

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Climate data from the nearest NOAA station, Cottonwood Weir, Ut (4 mi from Millcreek). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.