Expires:202512220300;;964019
FPUS55 KBYZ 210936
ZFPBYZ

Zone Forecast Product for South Central and Southeast Montana
National Weather Service Billings MT
235 AM MST Sun Dec 21 2025

Spot temperatures and probabilities of measurable precipitation
are for today, tonight, and Monday.



MTZ029-220300-
Musselshell-
Including the city of Roundup
236 AM MST Sun Dec 21 2025

.TODAY...Mostly cloudy. Chance of snow, slight chance of rain and
light freezing rain early in the afternoon. Chance of rain, snow
and slight chance of light freezing rain late in the afternoon.
Highs in the upper 30s. Southwest winds 5 to 10 mph. Chance of
precipitation 40 percent. 
.TONIGHT...Cloudy. Chance of rain in the evening. Slight chance
of rain overnight, then chance of rain after 3 am. Lows in the
upper 20s. Southwest winds 5 to 10 mph. Chance of precipitation
50 percent. 
.MONDAY...Cloudy with chance of rain in the morning, then partly
sunny with slight chance of rain in the afternoon. Highs in the
upper 40s. West winds 5 to 10 mph. Chance of precipitation
40 percent. 
.MONDAY NIGHT...Mostly cloudy. Lows in the upper 20s. Light and
variable winds. 
.TUESDAY...Cloudy. Highs in the upper 40s. Southwest winds 5 to
10 mph. 
.TUESDAY NIGHT...Mostly cloudy. Lows in the upper 20s. 
.WEDNESDAY...Partly sunny. Highs in the lower 50s. 
.WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain and
snow overnight. Lows in the mid 20s. 
.CHRISTMAS DAY...Increasing clouds. Colder. Highs in the upper
30s. 
.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 20s. 
.FRIDAY...Mostly cloudy. Highs in the upper 40s. 
.FRIDAY NIGHT...Mostly cloudy. Lows in the mid 20s. 
.SATURDAY...Mostly sunny. Highs in the mid 40s. 

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