Expires:202512100300;;278254
FPUS55 KBYZ 091344
ZFPBYZ

Zone Forecast Product for South Central and Southeast Montana
National Weather Service Billings MT
643 AM MST Tue Dec 9 2025

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



MTZ171-100300-
Pryor/Northern Bighorn Mountains-
643 AM MST Tue Dec 9 2025

.TODAY...Mostly cloudy. Isolated snow showers early in the
morning, then scattered snow showers in the late morning and
afternoon. Windy. Highs in the upper 30s. West winds 15 to 30 mph
with gusts to around 40 mph. Chance of precipitation 50 percent. 
.TONIGHT...Mostly cloudy. A 50 percent chance of snow after 3 am.
Lows in the lower 20s. Northwest winds 15 to 25 mph with gusts to
around 40 mph in the evening becoming west 5 to 15 mph overnight.
.WEDNESDAY...Snow in the morning, then chance of rain and snow
showers in the afternoon. Snow accumulation around 2 inches.
Highs in the mid 30s. Southwest winds 5 to 15 mph. Chance of
precipitation 80 percent. 
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain and snow showers
in the evening and overnight, then chance of snow showers after
3 am. Warmer. Lows in the mid 30s. Southwest winds 10 to 20 mph.
Chance of precipitation 40 percent. 
.THURSDAY...Mostly cloudy with a 50 percent chance of snow
showers. Highs in the upper 30s. Southwest winds 10 to 20 mph. 
.THURSDAY NIGHT...Snow in the evening, then snow likely
overnight. Much colder. Accumulations possible. Lows around 11.
Chance of precipitation 80 percent. 
.FRIDAY...Decreasing clouds. Snow likely in the morning, then
chance of snow in the afternoon. Colder. Accumulations possible.
Highs in the lower 20s. Chance of precipitation 60 percent. 
.FRIDAY NIGHT...Mostly cloudy. Slight chance of snow in the
evening, then chance of snow overnight. Lows around 12. Chance of
precipitation 30 percent. 
.SATURDAY...Mostly cloudy with a 20 percent chance of snow in the
morning, then mostly sunny in the afternoon. Highs in the lower
20s. 
.SATURDAY NIGHT...Partly cloudy. Lows around 19. 
.SUNDAY...Partly sunny. Highs in the lower 30s. 
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 20s. 
.MONDAY...Mostly sunny. Highs in the lower 30s. 

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