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Riverton, UT Weather & Growing Conditions

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

Tonight
52°F
Scattered Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Scattered showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms. Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. Northwest wind 1 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Riverton

WhenTempForecastWindPrecip
Tonight 52°F Scattered Showers And Thunderstorms then Slight Chance Showers And Thunderstorms 1 to 5 mph NW 51%
Saturday 71°F Slight Chance Showers And Thunderstorms then Mostly Sunny 1 to 7 mph N 16%
Saturday Night 49°F Partly Cloudy 2 to 7 mph NNW 0%
Sunday 73°F Sunny 3 mph ENE 0%
Sunday Night 51°F Partly Cloudy 5 mph NE 0%
Monday 79°F Mostly Sunny 3 mph SE 0%
Monday Night 57°F Partly Cloudy then Slight Chance Showers And Thunderstorms 5 mph ENE 13%
Tuesday 78°F Chance Showers And Thunderstorms 5 mph S 33%
Tuesday Night 54°F Chance Showers And Thunderstorms 1 to 5 mph SE 26%
Wednesday 79°F Sunny 5 mph S 12%
Wednesday Night 55°F Mostly Clear 3 mph ENE 3%
Thursday 82°F Sunny 2 to 6 mph SSE 5%
Thursday Night 58°F Partly Cloudy 1 to 6 mph SE 7%
Friday 82°F Mostly Sunny 5 to 9 mph S 8%

Forecast source: National Weather Service (api.weather.gov) for Riverton (40.518, -111.964). Updated through the day.

Growing snapshot for Riverton

Last spring frost
Apr 18
First fall frost
Oct 22
Growing season
185 days
Hardiness zone
7a

More local growing data for Riverton: nearby ZIP 84065 weather · frost dates · planting calendar · Utah frost dates

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Climate data from the nearest NOAA station, Draper-Point Of Mtn, Ut (2.4 mi from Riverton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.