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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: 3:30 am MDT Mar 30, 2025
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 53. Northeast wind around 6 mph.
Mostly Sunny

Tonight

Tonight: A 20 percent chance of rain after midnight.  Mostly cloudy, with a low around 35. East northeast wind 5 to 7 mph becoming light and variable  after midnight.
Mostly Cloudy
then Slight
Chance Rain
Monday

Monday: Rain likely, then showers and possibly a thunderstorm after noon.  High near 52. Calm wind becoming west southwest around 6 mph in the afternoon.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers

Monday
Night
Monday Night: A chance of rain before 3am, then a chance of rain and snow.  Mostly cloudy, with a low around 34. Northwest wind around 6 mph becoming light and variable  in the evening.  Chance of precipitation is 30%. Little or no snow accumulation expected.
Chance Rain
then Chance
Rain/Snow
Tuesday

Tuesday: A chance of rain and snow before noon, then a chance of rain.  Mostly cloudy, with a high near 48. Light south southwest wind becoming west southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.
Chance
Rain/Snow
then Chance
Rain
Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 33.
Mostly Cloudy

Wednesday

Wednesday: A slight chance of rain and snow before 9am, then a chance of rain.  Mostly cloudy, with a high near 49. Chance of precipitation is 50%. Little or no snow accumulation expected.
Slight Chance
Rain/Snow
then Chance
Rain
Wednesday
Night
Wednesday Night: A slight chance of rain before midnight, then a slight chance of rain and snow.  Mostly cloudy, with a low around 32.
Slight Chance
Rain then
Slight Chance
Rain/Snow
Thursday

Thursday: A chance of snow before noon, then a chance of rain.  Mostly cloudy, with a high near 49.
Chance Snow
then Chance
Rain
Hi 53 °F Lo 35 °F Hi 52 °F Lo 34 °F Hi 48 °F Lo 33 °F Hi 49 °F Lo 32 °F Hi 49 °F

 

This Afternoon
 
Mostly sunny, with a high near 53. Northeast wind around 6 mph.
Tonight
 
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 35. East northeast wind 5 to 7 mph becoming light and variable after midnight.
Monday
 
Rain likely, then showers and possibly a thunderstorm after noon. High near 52. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
 
A chance of rain before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 34. Northwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday
 
A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 48. Light south southwest wind becoming west southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday Night
 
Mostly cloudy, with a low around 33.
Wednesday
 
A slight chance of rain and snow before 9am, then a chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
 
A slight chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 32.
Thursday
 
A chance of snow before noon, then a chance of rain. Mostly cloudy, with a high near 49.
Thursday Night
 
A slight chance of rain, mixing with snow after 9pm, then gradually ending. Mostly cloudy, with a low around 29.
Friday
 
Mostly sunny, with a high near 52.
Friday Night
 
Mostly clear, with a low around 28.
Saturday
 
Sunny, with a high near 56.

 

Forecast from NOAA-NWS for Polson MT.

Weather Forecast Discussion
353
FXUS65 KMSO 301843
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
1243 PM MDT Sun Mar 30 2025

.DISCUSSION...

KEY MESSAGES:

- Mountain snow Monday night into Tuesday morning may again cause
  winter driving conditions in southwest MT above 3500 feet.

- Active pattern with cool and showery weather most of this coming
  week. Pass level snow impact potential during overnight/morning
  periods.

- Ridging returns around April 6th, warmer and drier for several
  days.

Shower activity begins again this evening from our next system.
Snow levels during this system will remain 4500 to 5000 feet,
with area mountain passes receiving a couple inches. Monday will
remain convective with isolated thunderstorms possible.

Monday evening models are spinning up another mid-level low over
southwest MT. Additionally, the models have continued their trend
of increasing precipitation amounts and lowering snow levels. A
mix of rain and snow may be possible Tuesday morning in the
valleys, while overnight Monday a few inches of snow is expected
to accumulate at Lost Trail, Homestake, and MacDonald Passes
creating periods of winter driving conditions. If traveling during
this period please check future forecasts for updates.

Active spring weather continues through April 6th, with periods of
sun, clouds, showers, graupel, and an isolated thunderstorm. The
short term forecast will be better for predicting short waves
that may increase precipitation chances.

High pressure returns, potentially just briefly, on the 6th with
warming temperatures and drier conditions.

&&

.AVIATION...Broken clouds today will become showers this evening,
with showers beginning at KSMN, KHRF, and KMSO between 31/0000
and 31/0600z. KGPI and KBTM showers will hold off until after
31/1100z. Monday instability increases and an isolated
thunderstorm is possible. Snow levels lower overnight and KSMN,
KHRF, and KMSO may receive a mix and rain and snow which will
cause short term visibility reductions. A period of light snow is
expected at KBTM after 01/0000z causing reduced visibility and
lowering ceilings, along with minor accumulations.



&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

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






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