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Libby, Montana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Libby MT
National Weather Service Forecast for:
Libby MT
Issued by: National Weather Service Missoula, MT |
| Updated: 3:40 am MST Nov 23, 2024 |
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Overnight
Rain/Snow
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Saturday
Rain/Snow and
Patchy Fog
then Rain
Likely and
Patchy Fog
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Saturday
Night
Chance
Rain/Snow and
Fog then
Chance Snow
and Fog
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Sunday
Chance Snow
and Fog
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Sunday
Night
Slight Chance
Snow and Fog
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Monday
Chance Snow
and Fog then
Chance
Rain/Snow
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Monday
Night
Chance
Rain/Snow and
Fog
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Tuesday
Chance
Rain/Snow and
Fog
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Tuesday
Night
Slight Chance
Rain/Snow and
Fog then Fog
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| Lo 30 °F |
Hi 42 °F |
Lo 23 °F |
Hi 37 °F |
Lo 18 °F |
Hi 37 °F |
Lo 24 °F |
Hi 41 °F |
Lo 22 °F |
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Winter Weather Advisory
Overnight
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Rain and snow. Low around 30. North wind around 7 mph. Chance of precipitation is 90%. Little or no snow accumulation expected. |
Saturday
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Rain and snow, becoming all rain after 9am. Patchy fog between 3pm and 4pm. High near 42. West wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected. |
Saturday Night
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A chance of rain before 8pm, then a chance of rain and snow between 8pm and 11pm, then a chance of snow after 11pm. Widespread fog, mainly after 11pm. Snow level 3400 feet lowering to 2200 feet after midnight . Otherwise, mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible. |
Sunday
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A 40 percent chance of snow. Widespread fog, mainly before 10am. Otherwise, mostly cloudy, with a high near 37. Calm wind. New snow accumulation of less than a half inch possible. |
Sunday Night
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A 20 percent chance of snow. Widespread fog, mainly between 11pm and 5am. Otherwise, mostly cloudy, with a low around 18. Calm wind. |
Monday
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A chance of snow before 2pm, then a chance of rain and snow. Widespread fog, mainly before 10am. Otherwise, mostly cloudy, with a high near 37. Chance of precipitation is 50%. Little or no snow accumulation expected. |
Monday Night
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A chance of rain and snow. Widespread fog, mainly after 8pm. Snow level 3000 feet lowering to 2300 feet after midnight . Otherwise, mostly cloudy, with a low around 24. Chance of precipitation is 40%. Little or no snow accumulation expected. |
Tuesday
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A chance of rain and snow before 2pm, then a chance of rain. Widespread fog, mainly before 11am. Snow level rising to 2900 feet in the afternoon. Otherwise, mostly cloudy, with a high near 41. |
Tuesday Night
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A slight chance of rain and snow before 11pm. Widespread fog after 8pm. Snow level 2900 feet lowering to 2200 feet after midnight . Otherwise, mostly cloudy, with a low around 22. |
Wednesday
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A chance of snow, mainly after 11am. Widespread fog, mainly before 10am. Otherwise, mostly cloudy, with a high near 37. |
Wednesday Night
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A slight chance of snow. Widespread fog. Otherwise, mostly cloudy, with a low around 20. |
Thanksgiving Day
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A slight chance of snow. Widespread fog. Otherwise, mostly cloudy, with a high near 35. |
Thursday Night
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A slight chance of snow. Widespread fog. Otherwise, mostly cloudy, with a low around 16. |
Friday
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A slight chance of snow. Widespread fog. Otherwise, partly sunny, with a high near 35. |
Forecast from NOAA-NWS
for Libby MT.
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Weather Forecast Discussion
131
FXUS65 KMSO 231004
AFDMSO
Area Forecast Discussion
National Weather Service Missoula MT
304 AM MST Sat Nov 23 2024
.DISCUSSION...
KEY MESSAGES:
- An atmospheric river continues to stream moisture into the
region this morning, causing moderate to heavy precipitation in
the mountains.
- Cooler air arrives today, causing snow levels to drop down to
the valleys just as the precipitation is decreasing.
The upper level trough to the northwest of the region will start
to split apart today. It has been supporting an atmospheric river
over the region for the last few days, and that will start to
break apart this evening. As it does, mildly cooler air will cause
the snow levels to drop down to the valleys just as the
precipitation is decreasing. As a result, many valleys of western
Montana could see some snow Sunday morning, with the larger
valleys expected to pick up less than an inch of snow. Along the
Continental Divide, arctic air will continue to seep through, but
won`t get any mid or upper level support to come across the divide
as those winds will remain westerly. So any impacts from that are
expected to be localized along the Continental Divide.
Tuesday another trough moves across the region, but by then we are
cut off from the atmospheric river, so just some light to moderate
snow showers are expected with accumulations mainly in the
mountains and very minimal impacts in the valleys.
Wednesday through the end of the week the region is under
northwest flow. This is a very good pattern for some snow showers,
and some long term models are showing the potential for those
showers to organize into bands, but most models are showing low
level winds too weak to organize the showers into any sustained
bands. In the valleys, precipitation type and any accumulation
will strongly depend on the time of day the showers occur. With
afternoon highs in the upper 30s, precipitation in the valleys
will probably be rain or at least snow will not accumulate until
closer to evening when temperatures decrease to near freezing.
&&
.AVIATION...MVFR and IFR conditions will continue this morning at
terminals KGPI and KMSO. The region has received so much rain
recently and temperatures remain near freezing, anytime the winds
go light fog is a possibility. Today is the last day of the
atmospheric river over the region with snow levels dropping
tonight. As the snow levels drop, the precipitation will decrease,
so snow accumulation at area terminals is expected to be less than
an inch by Sunday morning.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...Winter Weather Advisory until noon MST today for
Kootenai/Cabinet Region.
Winter Weather Advisory until 5 PM MST this afternoon for West
Glacier Region.
ID...None.
&&
$$
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