Thu Feb 20 05:20:00 AM EST 2025 Southern Twin Falls County- 319 AM MST Thu Feb 20 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM MST THIS MORNING... .TODAY...Snow likely this morning, then partly sunny this afternoon. Areas of dense fog. Chance of snow 60 percent. New snow accumulation up to 2 inches. Highs 34 to 40. Windy. West winds around 25 mph with gusts to 40 mph. .TONIGHT...Decreasing clouds. Patchy fog. Colder with lows 17 to 23. .FRIDAY...Sunny. Highs 37 to 42. .FRIDAY NIGHT...Increasing clouds. Lows 22 to 27. Temperature rising into the upper 20s after midnight. .SATURDAY...Mostly cloudy in the morning, then becoming mostly sunny. Highs 42 to 49. .SATURDAY NIGHT...Increasing clouds. Lows 29 to 34. .SUNDAY...A chance of snow in the morning. Mostly cloudy with a chance of rain. Chance of precipitation 40 percent. Highs 47 to 52. .SUNDAY NIGHT...Mostly cloudy. A chance of rain, mainly in the evening. Chance of rain 30 percent. Lows 37 to 42. .MONDAY AND MONDAY NIGHT...Mostly cloudy. Highs 51 to 59. Lows 34 to 39. .TUESDAY...Partly cloudy. A slight chance of snow in the afternoon. Chance of snow 20 percent. Highs 48 to 53. Breezy. .TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 27 to 32. Highs 48 to 53.