Shelby, Montana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Shelby MT
National Weather Service Forecast for:
Shelby MT
Issued by: National Weather Service Great Falls, MT |
Updated: 6:16 am MDT Apr 2, 2025 |
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Today
 Mostly Cloudy then Chance Rain/Snow
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Tonight
 Chance Rain/Snow then Snow Likely
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Thursday
 Snow
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Thursday Night
 Slight Chance Snow then Partly Cloudy
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Friday
 Sunny
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Friday Night
 Mostly Clear
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Saturday
 Mostly Sunny
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Saturday Night
 Partly Cloudy
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Sunday
 Sunny
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Hi 42 °F |
Lo 25 °F |
Hi 34 °F |
Lo 16 °F |
Hi 42 °F |
Lo 21 °F |
Hi 56 °F |
Lo 29 °F |
Hi 61 °F |
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Today
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A slight chance of snow between noon and 3pm, then a chance of rain and snow. Partly sunny, with a high near 42. North northwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. Little or no snow accumulation expected. |
Tonight
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A chance of rain and snow before 9pm, then snow likely. Mostly cloudy, with a low around 25. Northeast wind 6 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible. |
Thursday
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Snow. High near 34. North wind 7 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible. |
Thursday Night
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A 20 percent chance of snow before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 16. North northwest wind 6 to 15 mph, with gusts as high as 23 mph. |
Friday
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Sunny, with a high near 42. West northwest wind around 6 mph becoming southwest in the afternoon. |
Friday Night
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Mostly clear, with a low around 21. West wind around 6 mph becoming light and variable after midnight. |
Saturday
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Mostly sunny, with a high near 56. West southwest wind 3 to 8 mph. |
Saturday Night
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Partly cloudy, with a low around 29. West wind 6 to 9 mph. |
Sunday
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Sunny, with a high near 61. |
Sunday Night
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Mostly clear, with a low around 30. |
Monday
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Mostly sunny, with a high near 66. |
Monday Night
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Partly cloudy, with a low around 38. |
Tuesday
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Mostly sunny, with a high near 59. Breezy. |
Forecast from NOAA-NWS
for Shelby MT.
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Weather Forecast Discussion
917
FXUS65 KTFX 021136
AFDTFX
Area Forecast Discussion
National Weather Service Great Falls MT
536 AM MDT Wed Apr 2 2025
Aviation Section Updated.
.KEY MESSAGES...
- Snow will decrease across Central and Southwestern Montana
this morning, before the next round moves into North Central
Montana this evening.
- Warm and dry over the weekend, as upper level ridging builds
into the area.
- Next chance for precipitation looks to be early next week, as
a cold front moves through the area.
&&
.DISCUSSION...
/Issued 416 AM MDT Wed Apr 2 2025/
- Meteorological Overview:
Snowfall across Central and Southwestern Montana will come to an
end early this morning as the upper level trough that moved
through the area yesterday weakens and moves eastward. After a
mostly dry rest of the day across the area, our next round of
snowfall will push into the area overnight tonight as a cold
front begins to move in from the north. As this front pushes
through the area, most of the snow (and lower elevation rain)
will be focused mainly along the immediate Rocky Mountain Front
though a few heavier snow showers could form on the plains.
Behind this front, high pressure will build in at the surface
followed by ridging aloft for the weekend, which will result in a
warmer and drier weekend. Our next weather system will move into
the area early next week, bringing increased chances for rain and
windy conditions to the area.
- Forecast Confidence & Scenarios:
Snow Tonight and Thursday: Light snow is expected to develop
along the Rocky Mountain Front and Plains overnight tonight and
tomorrow as a cold front pushes into the area from Canada. For
the most part, expect snow to be light and accumulations to be
minimal (and generally limited to grassy and elevated surfaces at
that), though a few opportunities do exist for some more
impactful snowfall. The main area will be along the Rocky
Mountain Front, where some easterly winds will result in
upsloping, which will yield a 40% or higher chance of 6 inches of
snow in the higher terrain (with an 80% chance in Glacier
National Park). The other opportunity for snow to be a bit more
impactful will be if convective snow showers are able to develop
along and ahead of the cold front, as these would result in brief
periods of reduced visibility and may be able to overcome melting
on the roads and result in briefly slick travel.
Early next week: As a cold front pushes into the area next week,
expect precipitation to be mainly rain across the lower
elevations with some snow over the passes. As colder air moves
back into the area, some gusty winds may be possible,
particularly in the wind prone areas near the Rocky Mountain
Front. Ludwig
&&
.AVIATION...
02/12Z TAF Period
The widespread snowfall associated with a weak low pressure area
will continue to be focused mostly over Southwest Montana through
18Z or so, bringing widespread mountain obscuring MVFR/IFR
conditions. However, low clouds with patchy fog with
mountain/terrain obscuring MVFR/IFR conditions in the KCTB area
at 1130Z are forecast to continue spreading southeast over the
plains of North Central and Central Montana through around 16Z.
Most areas will improve a bit to mainly mountain top obscuring low
VFR/MVFR ceilings after 18Z, but weak instability may bring
scattered rain and snow showers to much of the area between 19Z
and 01Z. After 00Z, more widespread MVFR/IFR ceilings, likely
with some light snow, are forecast to spread southeast out of
Canada over the plains.
-Coulston
Refer to weather.gov/zlc for more detailed regional aviation
weather and hazard information.
&&
.PRELIMINARY POINT TEMPS/POPS...
GTF 43 26 35 19 / 40 20 80 40
CTB 40 24 32 14 / 30 60 90 10
HLN 45 27 42 22 / 50 30 50 50
BZN 42 23 44 21 / 60 30 40 60
WYS 37 14 40 16 / 60 40 50 50
DLN 42 25 45 23 / 30 30 30 30
HVR 45 25 37 17 / 20 60 80 10
LWT 40 22 36 18 / 40 20 70 50
&&
.TFX WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 6 PM this evening to 6 AM MDT
Friday for East Glacier Park Region-Eastern Glacier, Western
Toole, and Central Pondera-Northern High Plains-Southern High
Plains-Southern Rocky Mountain Front.
Winter Storm Warning until 6 AM MDT early this morning for Big
Belt, Bridger and Castle Mountains-Gallatin Valley-Gallatin and
Madison County Mountains and Centennial Mountains-Little Belt
and Highwood Mountains-Meagher County Valleys.
Winter Weather Advisory until 6 AM MDT early this morning for
Canyon Ferry Area-Helena Valley-Madison River Valley-Missouri
Headwaters.
&&
$$
http://www.weather.gov/greatfalls
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