Marine Weather and Tide Forecast for Bigfork, MT
April 23, 2025 1:59 AM MDT (07:59 UTC) Change Location
 | Sunrise 6:29 AM Sunset 8:41 PM Moonrise 3:50 AM Moonset 2:30 PM |
7 Day Forecast for Marine Location Near Bigfork, MT
NEW! Add second zone forecast
FXUS65 KMSO 222025 AFDMSO
Area Forecast Discussion National Weather Service Missoula MT 225 PM MDT Tue Apr 22 2025
DISCUSSION
KEY MESSAGES:
- Isolated to scattered showers across western Montana and north central Idaho this week, especially along and south of Interstate 90.
- Brief snow accumulations during the overnight hours for the higher terrain of southwest Montana
- Cooler and more widespread precipitation by the weekend
A weak trough of low pressure will remain over the region into Wednesday, allowing for continued shower activity, mainly in the afternoon and evening hours. Forecast models continue to show a slightly more defined wave for Wednesday afternoon and evening that cuts off and lingers across southern Montana into Thursday.
At the same time, a ridge of high pressure slides into the region.
While temperatures will slightly warm due to the high pressure ridge, shower activity will linger, especially along and south of Interstate 90. The higher terrain in southwest Montana will likely receive some light snow, especially in the late evening hours Wednesday.
At the same time, a low diving along the west coast on Thursday will strengthen the pressure gradient, allowing for easterly winds to develop Wednesday night into Thursday. Gusts 20 to 30 mph will be common across western Montana (60-80 percent chance) which will create choppy conditions on area lakes.
For the weekend, models are confident in showing a trough over the region. However, there are differences in how far north or south of the region the main low will drift. While showery and cooler conditions are likely either way, if the low comes in further north (as represented by about 20 percent of the solutions) the weekend could be much wetter than currently shown in the forecast. This wetter system could also lead to accumulating snow at mountain pass level. Stay tuned!
AVIATION
Satellite and radar imagery this afternoon highlights scattered showers, driven by shallow instability, moisture, and convective lift across the Northern Clearwater and Bitterroot Mountains, with activity extending east across the I-90 corridor. Activity will continue through 23/0200Z, before diminishing following sunset this evening. Overnight, clouds will generally decrease along and north of I-90 in western Montana, with mid-level clouds holding across the higher terrain along the divide. North- northwest winds will continue area wide through the early evening, before becoming light and variable overnight. Patchy areas of valley fog can’t be ruled out tonight, especially across northwest Montana and north-central Idaho, where clearing skies will take shape.
MSO WATCHES/WARNINGS/ADVISORIES
MT...None.
ID...None.
Area Forecast Discussion National Weather Service Missoula MT 225 PM MDT Tue Apr 22 2025
DISCUSSION
KEY MESSAGES:
- Isolated to scattered showers across western Montana and north central Idaho this week, especially along and south of Interstate 90.
- Brief snow accumulations during the overnight hours for the higher terrain of southwest Montana
- Cooler and more widespread precipitation by the weekend
A weak trough of low pressure will remain over the region into Wednesday, allowing for continued shower activity, mainly in the afternoon and evening hours. Forecast models continue to show a slightly more defined wave for Wednesday afternoon and evening that cuts off and lingers across southern Montana into Thursday.
At the same time, a ridge of high pressure slides into the region.
While temperatures will slightly warm due to the high pressure ridge, shower activity will linger, especially along and south of Interstate 90. The higher terrain in southwest Montana will likely receive some light snow, especially in the late evening hours Wednesday.
At the same time, a low diving along the west coast on Thursday will strengthen the pressure gradient, allowing for easterly winds to develop Wednesday night into Thursday. Gusts 20 to 30 mph will be common across western Montana (60-80 percent chance) which will create choppy conditions on area lakes.
For the weekend, models are confident in showing a trough over the region. However, there are differences in how far north or south of the region the main low will drift. While showery and cooler conditions are likely either way, if the low comes in further north (as represented by about 20 percent of the solutions) the weekend could be much wetter than currently shown in the forecast. This wetter system could also lead to accumulating snow at mountain pass level. Stay tuned!
AVIATION
Satellite and radar imagery this afternoon highlights scattered showers, driven by shallow instability, moisture, and convective lift across the Northern Clearwater and Bitterroot Mountains, with activity extending east across the I-90 corridor. Activity will continue through 23/0200Z, before diminishing following sunset this evening. Overnight, clouds will generally decrease along and north of I-90 in western Montana, with mid-level clouds holding across the higher terrain along the divide. North- northwest winds will continue area wide through the early evening, before becoming light and variable overnight. Patchy areas of valley fog can’t be ruled out tonight, especially across northwest Montana and north-central Idaho, where clearing skies will take shape.
MSO WATCHES/WARNINGS/ADVISORIES
MT...None.
ID...None.
Link to 1 hour of 5 minute data for KGPI
Terminal Aerodrome Forecast (TAF) for KGPI
Wind History Graph: GPI
(wind in knots)
GEOS Local Image of Pacific Northwest
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