Severe Weather in the Central Plains; Heavy Rainfall in the Tennessee Valley; Critical Fire Weather in the West

Scattered severe storms capable of large to very large hail, severe wind gusts, and a few tornadoes will be possible across the central Plains this evening. Heavy to excessive rainfall may bring a flooding threat from the Great Lakes to the Mid-South through tonight. Hot, dry and windy conditions will continue to bring a critical fire weather threat from the Southwest into the Great Basin. Read More >

7-Day Zone Forecast for Southwest Bighorn Basin (Text-Only)
NWS Forecast for: Southwest Bighorn Basin
Issued by: National Weather Service Riverton, WY
Last Update: 1047 PM MDT Mon Jun 8 2026


Tonight: Mostly cloudy. Lows in the mid 50s. South winds 10 to 15 mph.

Tuesday: Mostly cloudy. A slight chance of. Breezy with highs in the upper 70s. Southwest winds 15 to 25 mph with gusts up to 35 mph.

Tuesday Night: Partly cloudy in the evening, then clearing. Breezy with lows in the mid 40s. West winds 15 to 20 mph with gusts up to 30 mph.

Wednesday: Mostly sunny and windy. Highs around 70. West winds 20 to 30 mph. Gusts up to 45 mph in the afternoon.

Wednesday Night: Partly cloudy in the evening, then clearing. Breezy with lows around 40. Northwest winds 20 to 25 mph with gusts up to 35 mph in the evening.

Thursday: Mostly sunny. Highs around 70.

Thursday Night: Clear. Lows in the mid 40s.

Friday: Sunny. Highs around 80.

Friday Night: Clear. Lows around 50.

Saturday: Sunny, breezy with highs in the mid 70s.

Saturday Night: Mostly clear in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. Breezy with lows in the mid 40s. Chance of rain 30 percent.

Sunday: Partly cloudy in the morning, then clearing. A slight chance of showers. Highs around 70. Chance of rain 20 percent.

Sunday Night: A slight chance of thunderstorms in the evening. Mostly clear with a slight chance of showers. Lows in the mid 40s. Chance of rain 20 percent.

Monday: Mostly sunny with a slight chance of showers. Highs in the lower 70s. Chance of rain 20 percent.







Zone Forecast: Southwest Bighorn Basin

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