Expires:202512100300;;278241
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.



MTZ141-100300-
Northern Sweet Grass-
Including the city of Big Timber
643 AM MST Tue Dec 9 2025

...HIGH WIND WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON...

.TODAY...Partly sunny. Scattered rain showers in the morning and
early afternoon. Very windy in the morning decreasing to windy in
the afternoon. Highs in the mid 50s. West winds 35 to 50 mph with
gusts to around 75 mph in the morning decreasing to 25 to 40 mph
with gusts to around 65 mph in the afternoon. Chance of
precipitation 30 percent. 
.TONIGHT...Slight chance of snow overnight. Snow likely after
3 am. Colder. Little or no snow accumulation. Lows in the lower
30s. West winds 15 to 25 mph in the evening becoming southwest
5 to 15 mph overnight. Chance of precipitation 70 percent. 
.WEDNESDAY...Windy in the afternoon. Snow and rain early in the
morning, then chance of rain and snow late in the morning. Slight
chance of rain showers in the afternoon. Little or no snow
accumulation. Highs in the mid 50s. South winds 15 to 25 mph with
gusts to around 40 mph in the morning increasing to west 20 to
35 mph with gusts to around 50 mph in the afternoon. Chance of
precipitation 80 percent. 
.WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Windy, warmer. Lows in the mid 40s. West winds 15 to
30 mph with gusts to around 45 mph. 
.THURSDAY...Mostly cloudy. Chance of rain showers in the morning
and early afternoon, then chance of rain showers and slight
chance of snow showers late in the afternoon. Windy. Highs in the
mid 50s. West winds 20 to 35 mph with gusts to around 50 mph.
Chance of precipitation 50 percent. 
.THURSDAY NIGHT...Rain and slight chance of snow early in the
evening, then snow in the late evening and overnight. Much
colder. Accumulations possible. Lows around 14. Chance of
precipitation 80 percent. 
.FRIDAY...Snow likely in the morning, then chance of snow in the
afternoon. Much colder. Accumulations possible. Highs in the
upper 20s. Chance of precipitation 60 percent. 
.FRIDAY NIGHT...Mostly cloudy. Chance of rain and snow in the
evening and overnight, then chance of snow after 3 am. Lows
around 15. Chance of precipitation 30 percent. 
.SATURDAY...Mostly cloudy. A 20 percent chance of snow in the
morning. Highs in the upper 20s. 
.SATURDAY NIGHT...Mostly cloudy. Lows in the lower 20s. 
.SUNDAY...Partly sunny. Warmer. Highs in the mid 40s. 
.SUNDAY NIGHT...Partly cloudy. Warmer. Lows in the lower 30s. 
.MONDAY...Mostly sunny. Highs in the upper 40s. 

$$