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Plains, MT Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Tonight
Mostly clear, with a low around 37. Southeast wind around 1 mph.
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Thursday
Areas of fog between 8am and 10am. Mostly sunny, with a high near 71. North northeast wind around 2 mph.
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Thursday Night
Rain. Cloudy, with a low around 41. West wind around 2 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
National Weather Service forecast updated 16 hrs ago.
Hourly
Hourly forecast- Now69°
- 7 PM64°
- 8 PM56°
- 9 PM53°
- 10 PM50°
- 11 PM48°
- Thu12 AM47°
- 1 AM44°
- 2 AM43°
- 3 AM41°
- 4 AM41°
- 5 AM39°
- 6 AM39°
- 7 AM38°
- 8 AM37°
- 9 AM39°
- 10 AM45°
- 11 AM50°
- 12 PM55°
- 1 PM62°
- 2 PM65°
- 3 PM67°
- 4 PM69°
- 5 PM67°
10-day forecast
Details- TodayOct 21Areas Of Fog then Sunny37°74°
- ThuOct 22Areas Of Fog then Mostly Sunny85%41°71°
- FriOct 23Light Rain Likely63%29°58°
- SatOct 24Mostly Sunny16%28°58°
- SunOct 25Slight Chance Rain And Snow21%25°55°
- MonOct 26Slight Chance Light Snow20%26°53°
- TueOct 27Slight Chance Rain And Snow22%26°54°
- WedOct 28Cloudy0.12 in33°49°
- ThuOct 29Partly cloudy28°49°
- FriOct 30Cloudy34°53°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Plains
More weather news-
Isolated showers continue for the Mountains with a few moving through the Southeastern PlainsToday’s Forecast:Tuesday will start off with temperatures in the 40s along the I-25 corridor. Towards the higher terrain, temperatures have been dipping into the 30s. Once the sun rises, temperatures will warm quickly…
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Glorious fall weather on tap throughout coming week in Central PlainsWith just over 10 weeks left in 2026, it would be a shame to waste the next few days indoors as Omaha's weather forecast calls for glorious sunshine and above-normal temperatures. A fan salutes during the national…
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Tropical Threat Brewing Off Mexico Could Funnel Heavy Rain Toward the US Southern PlainsPeople from western Mexico into the southern Plains in the U.S. need to closely monitor the developing tropical threat as moisture from the system could eventually stream north. AccuWeather hurricane experts are…
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KLBK Wednesday AM Weather Update (10/21/26)LUBBOCK, Texas (KLBK) — Here is your updated forecast from the KLBK First Warning Weather Center: Today:Mostly sunny to partly cloudy conditions and slightly warmer weather is forecast on this Wednesday across the South…
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Really Nice Weather Until FridayKTVH Beautiful October weather will keep on rolling for Wednesday and Thursday, but Friday will be quite stormy with rain, falling temperatures and falling snow levels Until then, most of the state will have plenty of…
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Tracking showers & storms, weekend cooldownTODAY: Temps warm a few more degrees to the mid-to-high 70s for Colorado Springs, Pueblo, and the Plains. Deeper tropical moisture moves into the High TODAY: Temps warm a few more degrees to the mid-to-high 70s for…
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Autumn heat wave to sweep Israel as temperatures climb through the weekend | Weather forecastYnetnews Temperatures will begin rising across Israel on Wednesday ahead of an autumn heat wave expected over the weekend, although isolated showers are still possible along the Mediterranean coastal plain during the…
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A mild weather pattern holds across Montana, with changes set to arrive by end of weekNonstop Local News Montana MONTANA -Ã Continuing through Thursday, much of the state will enjoy partly to mostly sunny skies, with a few light rain showers possible in the afternoon/evening, in areas of high elevation…
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Comfortable Wednesday before windy changes starting ThursdayValley News Live A weak cold front moved through overnight into Wednesday morning, but it only brough brief clouds and a wind shift. Light north breeze for Wednesday with sunshine and highs in the 60s. Our next weather…
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Tuesday Evening Forecast 10-20-26KRCG Tuesday Evening Forecast 10-20-26 TUESDAY NIGHT: Some clouds will pass through as temperatures fall to the mid to upper 40s. EXTENDED: We'll continue a warming trend into the remainder of this week as high pressure…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Thompson Falls, MT reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlySt. Regis-clark Fork, records since 2001. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
Forecasters' discussion
From the National Weather Service office in MSO, issued 15 hrs ago
Discussion
KEY MESSAGES:
- Mild daytime temperatures through Thursday.
- Patchy valley fog around sunrise each morning.
- Significant weather change coming Thursday night into Friday.
Mild day-time temperatures will continue across the Northern Rockies through Thursday as high pressure remains in control. Stable conditions under the ridge are promoting the development of daily valley inversions and trapped cold air, with patchy dense fog. Afternoon temperatures will run around 10 degrees above normal for this time of year.
A significant change remains on track late Thursday into Friday, as a low pressure system and cold front tracks across the region. Colder temperatures and widespread precipitation, focused along and south of the Interstate 90 corridor and along the divide in northwest Montana are the main story. Precipitation amounts have trended higher over the last 48 hours, as model guidance has come into stronger consensus for a mid-level low to track along the divide in southwest Montana by Friday morning. Widespread precipitation will wrap around the west-northwest area of this low pointing towards the highest precipitation amounts (0.75-1.50 inches) along the divide across mountain ranges in southwest Montana. As discussed previously, most of the precipitation will fall as rain ahead of the cold front, limiting the potential for winter weather impacts. Snow levels will fall to around 5,000 feet Friday and lower over the weekend as shower activity begins to decrease. Therefore, forecast snow amounts will be generally under an inch across the region and above 5,000 feet. The exception is across higher peaks along the divide, where several inches of snow may fall above 7,000 feet.
Aviation
High pressure will continue to bring stable conditions. Valley inversions and cold air pools will set the stage for patchy areas of valley fog, particularly near large bodies of water and river systems. The primary period to watch will be from 21/1200-1500Z, including KGPI and KMSO. The probability of dense fog impacts at these terminals is generally less than 10 percent, but can not be ruled out.
Mso Watches
MT...None. ID...None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.