Today: Areas Of Fog then Partly Sunny, high 48°F, low 25°F. Hourly and 7-day forecast from the National Weather Service. Times are local (MDT).
St. Regis, MT current weather
35°F
Areas Of Fog
Forecast for this hour. No recent report from a nearby station.
H 48° / L 25°
No rain expected in the next 12 hours
No recent station report. NWS hourly forecast updated 10/29/2026, 1:01 AM PT
Hourly forecast
NWS, updated 10/29/2026, 1:01 AM PT
Now35°
10 AM38°
11 AM39°
12 PM42°
1 PM45°
2 PM47°
3 PM47°
4 PM47°
5 PM45°
6 PM43°
7 PM40°
8 PM37°
9 PM36°
10 PM35°
11 PM34°
12 AM32°Fri
1 AM31°
2 AM31°
3 AM29°
4 AM28°
5 AM28°
6 AM26°
7 AM27°
8 AM27°
9 AM28°
10 AM31°
11 AM34°
12 PM38°
1 PM43°
2 PM46°
3 PM48°
4 PM50°
5 PM48°
6 PM45°11%
7 PM42°11%
8 PM40°11%
9 PM38°11%
10 PM37°11%
11 PM36°11%
12 AM35°12%Sat
1 AM34°12%
2 AM33°12%
3 AM32°12%
4 AM31°12%
5 AM31°12%
6 AM30°
7 AM29°
8 AM28°
7-day forecast
Tap a day for details
Today10/29Low 25°High 48°
Today: Areas of fog before noon. Partly sunny, with a high near 48. East northeast wind around 1 mph.
Tonight: Mostly cloudy, with a low around 25. North northwest wind around 1 mph.
Areas Of Fog then Partly Sunny
Fri10/3012% chance of precipitationLow 27°High 50°
Friday: Mostly cloudy, with a high near 50. East southeast wind around 1 mph.
Friday Night: Mostly cloudy, with a low around 27. Wind around 0 mph.
Mostly Cloudy
Sat10/3159% chance of precipitationLow 30°High 53°
Saturday: Partly sunny, with a high near 53. North northeast wind around 1 mph.
Saturday Night: Rain likely. Mostly cloudy, with a low around 30. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Partly Sunny
Sun11/159% chance of precipitationLow 26°High 47°
Sunday: Rain likely. Mostly cloudy, with a high near 47.
Sunday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 26.
Light Rain Likely
Mon11/2Low 26°High 51°
Monday: Mostly sunny, with a high near 51.
Monday Night: Mostly cloudy, with a low around 26.
Mostly Sunny
Tue11/3Low 27°High 54°
Tuesday: Partly sunny, with a high near 54.
Tuesday Night: Mostly cloudy, with a low around 27.
Partly Sunny
Wed11/414% chance of precipitationLow 27°High 54°
Wednesday: Partly sunny, with a high near 54.
Wednesday Night: Mostly cloudy, with a low around 27.
Forecaster's discussionIssued 10/29/2026, 2:50 AM MDT
Discussion
KEY MESSAGES:
- Anticipate cooler temperatures and periods of valley rain and mountain snow Saturday evening through Monday morning.
Radar currently shows weak returns northwest of Missoula. Some of these returns may be producing light precipitation, especially in the mountains. Use caution during the morning commute if traveling across Lookout or Marias Passes as slick driving may be present although this is a very low probability outcome.
The rest of the day trends drier and these conditions will continue into Friday. Temperatures will remain near normal for this time of year, but physically it might feel cool as cloud cover limits the warmth of sunshine, especially on Friday.
The next system arrives on Saturday, snow levels which begin above 6000 feet may lower to 4500 feet on Sunday. The majority of precipitation will fall south of I-90 and a trace to 3 slushy inches may accumulate at Lost Trail Pass, most elevations of Lemhi County ID, and higher valleys of southwest MT. Sunday morning at Lost Trail Pass there may be brief periods of winter driving conditions.
High pressure is forecast through at least midweek (3-5 Nov) with temperatures returning a few degrees above normal. This time of year high pressure would allow for valley inversions, which could keep valleys from full warming potential along with patchy morning fog or low stratus clouds.
Aviation
A weak disturbance is producing mid level clouds with no measurable precipitation at area terminals. Winds will remain light but a northeasterly gradient develops today. High pressure builds throughout the day and will keep flying conditions as VFR but cloud cover remains over the region.
Watches, warnings and advisories
MT: None. ID: None.
From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.
Next 6 hours
NWS hourly forecast
Now35°Areas Of Fog2%0 mph
10 AM38°Areas Of Fog2%0 mph
11 AM39°Areas Of Fog2%0 mph
12 PM42°Partly Sunny1%0 mph
1 PM45°Partly Sunny2%0 mph
2 PM47°Partly Sunny2%1 mph
Hourly details
Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShowHide
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