Expires:202512220300;;967729
FPUS55 KBYZ 211117
ZFPBYZ

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

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



MTZ169-220300-
Bighorn Canyon-
Including the city of Fort Smith
416 AM MST Sun Dec 21 2025

.TODAY...Mostly cloudy. Slight chance of rain and snow late in
the morning. Slight chance of rain early in the afternoon. Highs
in the mid 40s. Southeast winds 5 to 15 mph. Chance of
precipitation 20 percent. 
.TONIGHT...Mostly cloudy. A 20 percent chance of rain in the
evening. Lows in the lower 30s. East winds 5 to 10 mph in the
evening shifting to the southwest 5 to 15 mph overnight. 
.MONDAY...Partly sunny with a 20 percent chance of rain. Highs in
the lower 50s. West winds 10 to 20 mph. 
.MONDAY NIGHT...Mostly cloudy. Lows in the mid 30s. South winds
5 to 10 mph. 
.TUESDAY...Mostly cloudy. Highs in the mid 50s. South winds 5 to
15 mph. 
.TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. 
.WEDNESDAY...Mostly sunny. Highs in the upper 50s. 
.WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
overnight. Lows in the mid 30s. 
.CHRISTMAS DAY...Mostly sunny. A 20 percent chance of rain and
snow in the morning. Cooler. Highs in the upper 40s. 
.THURSDAY NIGHT...Mostly cloudy. Lows around 30. 
.FRIDAY...Partly sunny. Highs in the mid 50s. 
.FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in the
evening. Lows in the lower 30s. 
.SATURDAY...Mostly cloudy early in the morning then becoming
sunny late in the morning then becoming mostly sunny in the
afternoon. Highs in the upper 40s. 

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