Riverton

Aleutians East Borough, Wyoming, United States

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Current Weather

22°

Breezy

Feels Like: 22°

Min: 12°

Max: 25°

The next few hours will be clear, with today reaching 25°C and dropping to 6°C. The coming days will be mostly clear until afternoon, returning in the evening.

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Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

23° 20° 18° 16° 14° 12° 11° 10° 10° 13° 14° 16° 18° 20° 22° 23° 23°
6pm
7pm
8pm
9pm
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11pm
12am
1am
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5am
6am
7am
8am
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11am
12pm
1pm
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5pm
Today
Tomorrow

Daylight Hours

06:58

Sunrise

19:18

Sunset

12 hours 19 minutes of sunlight today

Moon

Waxing Crescent

10:55

Moonrise

20:19

Moonset

Daily Forecast

Monday

12°
25°

Today

23°

Wednesday

26°

Thursday

10°
25°

Friday

11°
26°

Saturday

24°

Sunday

24°

Monday

25°

Tuesday

26°

Wednesday

11°
22°

Air Quality Data Available

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UV Index

No protection needed
1 Low
Low Extreme

Humidity

17% Very Dry
Low High

Weather in Riverton tomorrow, September 15, 2026

Riverton looks cloudy on September 15, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. The morning looks comparatively open, with cloud near 33% around 11:00. Early outdoor plans have a better chance of staying dry and bright.

The day peaks near 23°C and cools toward 5°C. Relative humidity sits between 24% and 67%, reaching its peak around 07:00. Airflow remains manageable, reaching about 3.3 km/h around 17:00.

The afternoon keeps an overcast feel, as cloud reaches about 75% around 14:00. Outdoor plans may still want a flexible backup. Expect visibility around 16.1 km. Sunrise is at 06:59 and sunset at 19:16, giving 12 hours 16 minutes of sunlight today.

Taken together, overcast skies in Riverton on September 15, 2026 favour indoor or covered options, with temperatures near 23°C.

Frequently asked questions about weather in Riverton

How warm does it get in Riverton?

The warmest month in Riverton is July, with average high temperatures of 31°C. The average temperature during this period is around 23°C.

How cold does it get in Riverton?

The coldest month in Riverton is January, with average low temperatures of -12°C. The average temperature during this period is around -7°C.

What is the wettest time of year in Riverton?

The wettest month in Riverton is May, with an average of 71mm of precipitation.

What is the driest time of year in Riverton?

The driest month in Riverton is December, with an average of 16mm of precipitation.

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Metric (°C, km/h)