Upper Blackfoot and MacDonald Pass- Including Marysville, Lincoln, Flesher Pass, and MacDonald Pass 227 AM MDT Mon Sep 16 2024 .TODAY...Mostly cloudy with a 20 percent chance of rain in the morning, then partly cloudy in the afternoon. Highs 65 to 70. East winds up to 10 mph. .TONIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of thunderstorms after midnight. Lows 45 to 50. Northeast winds up to 10 mph. Chance of precipitation 50 percent. .TUESDAY...Rain showers likely and slight chance of thunderstorms in the morning, then rain showers and chance of thunderstorms in the afternoon. Highs 55 to 65. Southeast winds up to 5 mph shifting to the south in the afternoon. Chance of precipitation 90 percent. .TUESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers and slight chance of thunderstorms after midnight. Lows 40 to 45. West winds 5 to 15 mph. Gusts up to 35 mph after midnight. Chance of precipitation 90 percent. .WEDNESDAY...Breezy. Rain likely. Highs 45 to 55. West winds 15 to 25 mph with gusts to around 40 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Rain likely. Lows 40 to 45. Chance of rain 70 percent. .THURSDAY...Mostly cloudy with a 40 percent chance of rain. Highs 55 to 60. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 40 to 45. Highs 55 to 65. .FRIDAY NIGHT...Partly cloudy. Lows 35 to 45. .SATURDAY...Partly cloudy with a 30 percent chance of rain. Highs 55 to 60. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 40 percent chance of rain. Lows 35 to 45. Highs 50 to 60. $$