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Riverton, UT Weather Tomorrow

Tomorrow's weather forecast for Riverton is supported by a complete 5 day outlook covering precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction for the Riverton area and around Salt Lake county, Utah.
Updated: Fri Sep 18th 2026 8:00 AM MDT
Riverton, UT Weather – 9-18 – Scattered Showers
78° / 58°
Scattered Showers
Daytime highs will reach 78°F with lows dropping to 58°F in Riverton, where showers likely at times. Rainfall predicted to have a 57% chance with an estimated 0.12in. Winds will be strong at speeds peaking at 26mph and gusts of 28.2mph at 5 PM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 74% at 7 PM and 25% being its lowest at 4 PM. Barometric pressure is its highest of 30inHg at 9 AM, a lowest point of 29.83inHg at 4 PM with an avg 29.93inHg.
Riverton, UT Weather – 9-19 – Sunny
71° / 51°

Weather Tomorrow

Sunny
Highs will reach 71°F with lows near 51°F in Riverton, where a sunny day is. There might be light rainfall having a 17% chance with an estimated 0.01in. Wind will be moderate, blowing around 16mph on average and gusts of 25.7mph at 5 PM. Humidity levels should be comfortable, sitting around 50% on average, the maximum being 78% at 6 AM and 22% being its lowest at 3 PM. Barometric pressure is its highest of 30.06inHg at 9 AM, a lowest point of 29.94inHg at 3 PM with an avg 30.01inHg.
Riverton, UT Weather – 9-20 – Sunny
74° / 50°
Sunny
Riverton is set for sunshine with temperatures peaking at 74°F and dipping to 50°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 13mph on average and gusts of 21.5mph at 5 PM. Humidity levels should be comfortable, sitting around 37% on average, the maximum being 50% at 7 AM and 23% being its lowest at 4 PM. Barometric pressure is its highest of 30.09inHg at 8 AM, a lowest point of 29.94inHg at 4 PM with an avg 30.02inHg.
Riverton, UT Weather – 9-21 – Overcast
78° / 52°
Overcast
Daytime highs will reach 78°F with lows dropping to 52°F in Riverton, where it will be overcast. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 11mph on average and gusts of 19.2mph at 6 PM. Humidity levels should be comfortable, sitting around 33% on average, the maximum being 54% at 4 AM and 15% being its lowest at 3 PM. Barometric pressure is its highest of 30.02inHg at 8 AM, a lowest point of 29.83inHg at 4 PM with an avg 29.94inHg.
Riverton, UT Weather – 9-22 – Overcast
75° / 54°
Overcast
Riverton may see overcast, with daytime highs of 75°F and overnight lows near 54°F. There's a very small chance of rainfall, only about 7%. Wind will be moderate, blowing around 11mph on average and gusts of 22.1mph at 1 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 44% at 11 PM and 18% being its lowest at 4 PM. Barometric pressure is its highest of 29.98inHg at 11 PM, a lowest point of 29.84inHg at 5 PM with an avg 29.9inHg.
Riverton, UT Weather – 9-23 – Sunny
79° / 56°
Sunny
Riverton is set for a sunny day with temperatures peaking at 79°F and dipping to 56°F. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 12mph on average and gusts of 20.4mph at 6 PM. Humidity levels should be comfortable, sitting around 38% on average, the maximum being 58% at 6 AM and 19% being its lowest at 3 PM. Barometric pressure is its highest of 30.1inHg at 9 AM, a lowest point of 29.99inHg at 3 PM with an avg 30.04inHg.

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