Severe Weather in the Plains; Heavy Rainfall in the Ohio and Tennessee Valleys; Heat Wave in the Central U.S.

Numerous severe storms with a potential for severe wind gusts, tornadoes (some potentially strong), and very large hail are expected in parts of the central and northern Plains. Heavy rainfall may bring a flooding threat to parts of the northern Plains and from the Ohio Valley to the Southeast. Fire weather concerns persist in the Four Corners Region. Hot and humid expected in the central U.S.. Read More >

7-Day Zone Forecast for Southeast Bighorn Basin (Text-Only)
NWS Forecast for: Southeast Bighorn Basin
Issued by: National Weather Service Riverton, WY
Last Update: 747 AM MDT Tue Jun 9 2026


Today: Mostly cloudy. A chance of showers with a slight chance of thunderstorms this afternoon. Breezy with highs around 80. Southwest winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 30 percent.

Tonight: Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Breezy with lows in the upper 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph, becoming west around 10 mph with gusts up to 20 mph after midnight. Chance of rain 30 percent.

Wednesday: Mostly sunny in the morning, then becoming partly cloudy. Windy with highs around 70. Southwest winds 15 to 20 mph with gusts up to 35 mph, becoming west 20 to 30 mph with gusts up to 45 mph in the afternoon.

Wednesday Night: Partly cloudy and breezy. Lows in the lower 40s. Northwest winds 20 to 25 mph with gusts up to 40 mph, diminishing to around 10 mph after midnight.

Thursday: Partly cloudy in the morning, then clearing. Highs around 70. Northwest winds around 10 mph, becoming north in the afternoon.

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

Friday: Sunny. Highs around 80.

Friday Night: Clear. Lows in the upper 40s.

Saturday: Sunny. A slight chance of. 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 upper 40s. Chance of rain 30 percent.

Sunday: Partly cloudy. A chance of showers in the morning. Highs around 70. Chance of rain 30 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: Southeast Bighorn Basin

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