National Weather Service United States Department of Commerce

Flash flooding threat continues from the Great Basin across the southern Plains

The wet pattern in place will continue from the Great Basin across the central and southern Rockies into the southern Plains into Wednesday. Ample monsoonal moisture with a frontal boundary in place will allow for shower and thunderstorm development with locally heavy rainfall at times. The heavier showers could lead to flash flooding in some areas, especially urban areas and burn scars.
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Hazardous Weather Conditions

Current Conditions

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5 Miles SSW Lewis Lake WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Today

Scattered Thunderstorms Chance for Measurable Precipitation 40%

Scattered
Thunderstorms

High: 70 °F

Tonight

Isolated Thunderstorms Chance for Measurable Precipitation 20%

Isolated
Thunderstorms

Low: 43 °F

Thursday

Scattered Thunderstorms Chance for Measurable Precipitation 40%

Scattered
Thunderstorms

High: 67 °F

Thursday
Night

Isolated Thunderstorms Chance for Measurable Precipitation 20%

Isolated
Thunderstorms

Low: 45 °F

Friday

Scattered Thunderstorms Chance for Measurable Precipitation 50%

Scattered
Thunderstorms

High: 70 °F

Friday
Night

Scattered Thunderstorms Chance for Measurable Precipitation 40%

Scattered
Thunderstorms

Low: 45 °F

Saturday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 69 °F

Saturday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 42 °F

Sunday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 70 °F

Detailed Forecast

  • Today Scattered showers and thunderstorms after noon. Partly sunny, with a high near 70. East wind 5 to 8 mph becoming calm. Chance of precipitation is 40%.
  • Tonight Isolated showers and thunderstorms before midnight. Partly cloudy, with a low around 43. Light northeast wind. Chance of precipitation is 20%.
  • Thursday Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 67. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 40%.
  • Thursday Night Isolated showers and thunderstorms before midnight. Mostly cloudy, with a low around 45. Northeast wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.
  • Friday Scattered showers and thunderstorms, mainly after noon. Partly sunny, with a high near 70. South southeast wind 3 to 7 mph. Chance of precipitation is 50%.
  • Friday Night Scattered showers and thunderstorms before midnight. Mostly cloudy, with a low around 45. Southeast wind around 6 mph. Chance of precipitation is 40%.
  • Saturday A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. Southeast wind around 6 mph becoming southwest in the afternoon.
  • Saturday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 42.
  • Sunday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 70.
  • Sunday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 44.
  • Monday A chance of showers and thunderstorms. Partly sunny, with a high near 66.
  • Monday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 41.
  • Tuesday A chance of showers and thunderstorms. Partly sunny, with a high near 68.