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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.

This Afternoon
70°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 3pm. Sunny, with a high near 70. Northwest wind around 6 mph.

7-day forecast for Millcreek

WhenTempForecastWindPrecip
This Afternoon 70°F Slight Chance Showers And Thunderstorms 6 mph NW 10%
Tonight 50°F Mostly Clear 0 to 5 mph NNE 3%
Sunday 73°F Sunny 0 to 3 mph NW 0%
Sunday Night 50°F Mostly Clear 3 mph NE 0%
Monday 79°F Sunny 0 to 3 mph S 0%
Monday Night 56°F Mostly Cloudy 5 mph ENE 5%
Tuesday 78°F Chance Showers And Thunderstorms 3 mph S 46%
Tuesday Night 54°F Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms 1 to 6 mph SSE 44%
Wednesday 79°F Sunny 3 mph S 9%
Wednesday Night 56°F Mostly Clear 3 mph E 2%
Thursday 83°F Sunny 3 mph S 1%
Thursday Night 59°F Partly Cloudy 1 to 5 mph ESE 2%
Friday 83°F Mostly Sunny 5 mph SSE 8%
Friday Night 60°F Slight Chance Showers And Thunderstorms 6 mph S 16%

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.