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Polson, Montana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Polson MT
National Weather Service Forecast for: Polson MT
Issued by: National Weather Service Missoula, MT
Updated: 4:10 am MDT Apr 2, 2025
 
Today

Today: A 40 percent chance of rain after noon.  Mostly cloudy, with a high near 49. Calm wind becoming south southwest around 6 mph in the afternoon.
Mostly Cloudy
then Chance
Rain
Tonight

Tonight: A slight chance of rain before midnight, then a chance of rain and snow.  Mostly cloudy, with a low around 33. West southwest wind around 6 mph becoming south in the evening.  Chance of precipitation is 30%. Little or no snow accumulation expected.
Slight Chance
Rain then
Chance
Rain/Snow
Thursday

Thursday: Snow likely before 11am, then rain and snow likely between 11am and noon, then rain after noon.  High near 45. South wind 5 to 11 mph becoming west in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Rain/Snow
Likely then
Rain
Thursday
Night
Thursday Night: A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and midnight.  Partly cloudy, with a low around 22. Northeast wind 5 to 8 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.
Slight Chance
Rain/Snow
then Partly
Cloudy
Friday

Friday: Sunny, with a high near 47. Light and variable wind.
Sunny

Friday
Night
Friday Night: Clear, with a low around 25.
Clear

Saturday

Saturday: Sunny, with a high near 59.
Sunny

Saturday
Night
Saturday Night: Mostly clear, with a low around 31.
Mostly Clear

Sunday

Sunday: Sunny, with a high near 64.
Sunny

Hi 49 °F Lo 33 °F Hi 45 °F Lo 22 °F Hi 47 °F Lo 25 °F Hi 59 °F Lo 31 °F Hi 64 °F

Winter Weather Advisory
 

Today
 
A 40 percent chance of rain after noon. Mostly cloudy, with a high near 49. Calm wind becoming south southwest around 6 mph in the afternoon.
Tonight
 
A slight chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 33. West southwest wind around 6 mph becoming south in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday
 
Snow likely before 11am, then rain and snow likely between 11am and noon, then rain after noon. High near 45. South wind 5 to 11 mph becoming west in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
 
A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and midnight. Partly cloudy, with a low around 22. Northeast wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
 
Sunny, with a high near 47. Light and variable wind.
Friday Night
 
Clear, with a low around 25.
Saturday
 
Sunny, with a high near 59.
Saturday Night
 
Mostly clear, with a low around 31.
Sunday
 
Sunny, with a high near 64.
Sunday Night
 
Mostly clear, with a low around 35.
Monday
 
Mostly sunny, with a high near 63.
Monday Night
 
Mostly cloudy, with a low around 38.
Tuesday
 
A slight chance of rain. Partly sunny, with a high near 57.

 

Forecast from NOAA-NWS for Polson MT.

Weather Forecast Discussion
217
FXUS65 KMSO 021028
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
428 AM MDT Wed Apr 2 2025

.DISCUSSION...

KEY MESSAGES:

-  Winter driving conditions across portions of southwest Montana
   this morning.

-  Snow will develop in the Glacier Region and other parts of
   northwest Montana later tonight through Thursday.

-  Warm and dry weekend on tap.

The residual wrap-around light snow will continue to impact
southwest Montana through daybreak. There is a winter weather
advisory to capture this impact. Satellite trends depict this
feature slowly drifting southwards with time and will be out of
our area by late morning. Instability showers will develop this
afternoon and evening across the region.

Not much change has occurred with the shortwave trough on Thursday
and backdoor cold front. We have issued winter weather advisories
to cover the snow impacts tonight through Thursday across
northwest Montana. The low-hanging fruit for snowfall appears to
be in the Glacier Region where 2 to 8 inches could fall. The other
areas will depend on how much snow shower coverage there will be
tonight. The start time for the Lincoln County/Kootenai/Cabinet
Region advisory was a bit tricky, but felt that probabilities
were high enough to warrant starting at midnight to capture snow
on US-93 between Eureka and Whitefish. Eastern parts of the
Flathead Valley could be snowing after midnight, then Kalispell by
daybreak onwards. The cold front will bring a period of moderate
snow in these areas in the morning, and then across Flathead Lake
by early afternoon. By then, the ground temps will be warm enough
that any snow accumulation would melt on the roads. Once the cold
front moves through from the northeast, drier air will cause
showers to end in the afternoon up north, but continue across
west-central Montana.

With high pressure developing by Friday, there could be some
valley fog to start, but temperatures will warm into the upper 40s
to lower 50s. And this will begin the very pleasant warm and dry
weekend. The timing of the cold front on Monday has trended a
little faster, so the chance for highs getting to the 70s has been
squashed. There`s only a 20 percent for highs to get into the
mid to upper 60s across the west-central Montana valleys on
Monday.


&&

.AVIATION...Satellite trends early this morning depict a narrow
area of wrap-around rain and snow across southwest Montana. This
feature will slowly shift southwards and weaken by 02/1700Z or
late this morning. KBTM will likely continue to see periods of
lowered ceiling and visibility with light snow. Low stratus has
formed across northwest Montana and portions of Idaho. Expect
improvement by this afternoon. Afternoon and evening showers will
bring brief visibility reductions. An upper level wave will bring
more organized snow showers after 03/0300z or 9 pm MDT this
evening across northwest Montana. A cold front from Canada will
bring a period of moderate snow to the Glacier Region and portions
of northwest Montana Thursday morning.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...Winter Weather Advisory from midnight tonight to 3 PM MDT
     Thursday for Kootenai/Cabinet Region...West Glacier Region.

     Winter Weather Advisory from 3 AM to 3 PM MDT Thursday for
     Flathead/Mission Valleys.

     Winter Weather Advisory until 9 AM MDT this morning for
     Butte/Blackfoot Region.

ID...None.
&&

$$
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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