Fri Feb 21 08:22:00 PM EST 2025 Southwest Bighorn Basin- Including the city of Thermopolis 620 PM MST Fri Feb 21 2025 .TONIGHT...Mostly clear. Cold with lows 13 to 19. Southwest winds around 10 mph. .SATURDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs around 40. Southwest winds around 10 mph with gusts up to 20 mph in the morning. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 20s. Southeast winds around 10 mph, becoming south with gusts up to 20 mph after midnight. .SUNDAY...Partly cloudy. Highs around 50. Southwest winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .MONDAY...Mostly sunny and breezy. Highs in the mid 50s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 30. .TUESDAY...Partly cloudy with a chance of rain and snow showers. Breezy with highs in the lower 50s. Temperature falling into the mid 40s in the afternoon. Chance of precipitation 30 percent. .TUESDAY NIGHT...Mostly clear. Lows in the lower 20s. .WEDNESDAY...Mostly sunny. Highs in the upper 40s. .WEDNESDAY NIGHT...Clear. Lows in the lower 20s. .THURSDAY...Mostly sunny. Highs in the lower 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the upper 20s. .FRIDAY...Partly cloudy. Highs in the lower 50s.