Expires:202512212000;;952590 FPUS55 KBYZ 210518 ZFPBYZ Zone Forecast Product for South Central and Southeast Montana National Weather Service Billings MT 1016 PM MST Sat Dec 20 2025 Spot temperatures and probabilities of measurable precipitation are for the rest of tonight, Sunday, Sunday night, and Monday. MTZ030-212000- Treasure- Including the city of Hysham 1016 PM MST Sat Dec 20 2025 .REST OF TONIGHT...Partly cloudy. Lows in the mid 20s. Southwest winds 5 to 15 mph. .SUNDAY...Partly sunny. A 20 percent chance of rain and snow early in the afternoon. Highs in the upper 30s. Southwest winds 5 to 10 mph. .SUNDAY NIGHT...Cloudy with a 20 percent chance of rain. Lows in the upper 20s. South winds 5 to 10 mph. .MONDAY...Mostly cloudy. Slight chance of light freezing rain and snow early in the morning. Chance of rain in the morning, then slight chance of rain in the afternoon. Highs in the upper 40s. West winds 5 to 10 mph. Chance of precipitation 30 percent. .MONDAY NIGHT...Mostly cloudy. Lows around 30. Southwest winds 5 to 10 mph in the evening shifting to the east overnight. .TUESDAY...Mostly cloudy. Highs in the mid 40s. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 20s. .WEDNESDAY...Decreasing clouds. Highs in the upper 40s. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the lower 30s. .CHRISTMAS DAY...Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs in the mid 40s. .THURSDAY NIGHT...Mostly cloudy. Lows in the mid 20s. .FRIDAY...Mostly cloudy with a 20 percent chance of rain and snow. Highs in the mid 40s. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain and snow in the evening, then mostly clear overnight. Lows in the mid 20s. .SATURDAY...Sunny. Highs in the upper 30s. $$