South Central and Southeast Montana- National Weather Service Billings MT 344 AM MDT Sat Sep 10 2022 .TODAY...Sunny. Highs in the upper 60s to the upper 70s. .TONIGHT...Mostly clear. Lows in the upper 30s to the upper 40s. .SUNDAY...Sunny. Highs of around 80 to around 90. .SUNDAY NIGHT...Mostly clear. Lows in the mid 40s to the mid 50s. .MONDAY...Sunny. Highs in the mid 80s to around 90. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows in the upper 40s to the upper 50s. Highs in the upper 70s to the upper 80s. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. Slight chance of rain showers. Lows of around 50 to around 60. Highs in the mid 70s to the mid 80s. $$