Install
Hamilton, MT 59840 Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Today
Sunny, with a high near 68. South southeast wind around 5 mph.
-
Tonight
Rain likely before 2am, then rain and patchy fog. Mostly cloudy. Low around 40, with temperatures rising to around 46 overnight. Southwest wind around 2 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
-
Friday
Rain. Cloudy. High near 48, with temperatures falling to around 43 in the afternoon. West wind 3 to 7 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
National Weather Service forecast updated 9 hrs ago.
Hourly
Hourly forecast- Now51°
- 12 PM56°
- 1 PM62°
- 2 PM65°
- 3 PM66°
- 4 PM67°
- 5 PM65°
- 6 PM63°29%
- 7 PM60°19%
- 8 PM54°17%
- 9 PM52°21%
- 10 PM51°31%
- 11 PM50°56%
- Fri12 AM49°39%
- 1 AM49°33%
- 2 AM48°57%
- 3 AM47°79%
- 4 AM47°93%
- 5 AM46°91%
- 6 AM45°82%
- 7 AM44°68%
- 8 AM43°67%
- 9 AM41°96%
- 10 AM45°88%
10-day forecast
Details- TodayOct 22Sunny93%40°68°
- FriOct 23Rain96%31°48°
- SatOct 24Patchy Fog then Mostly Sunny29°52°
- SunOct 25Patchy Fog then Mostly Sunny29°54°
- MonOct 26Mostly Sunny22%29°53°
- TueOct 27Chance Rain And Snow35%28°52°
- WedOct 28Slight Chance Rain And Snow then Mostly Sunny19%28°51°
- ThuOct 29Mostly sunny31°51°
- FriOct 30Partly cloudy32°57°
- SatOct 31Sunny33°56°
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 in Montana
More weather news-
NOAA’s Latest Drought Forecast Isn’t Great News for Western MontanaWe've been talking a lot lately about El Niño and what it could mean for Montana's winter. We've looked at forecasts from NOAA, the Old Farmer's Almanac, and other sources, with plenty of discussion about what kind of…
-
Pleasant fall weather conditions across Montana turn cold and wet as we head into the weekendA storm system is taking shape and may bring significant precipitation, gusty to locally strong winds, and mountain/foothills snowfall from Thursday night through Saturday morning. MONTANA - Be sure to enjoy the…
-
Abnormally warm air settles into Montana before big cooldown this weekendMontana is enjoying some unseasonably warm weather this week, with highs reaching the 60s and 70s across much of the state, but a cooldown is on the way. A trough of low pressure moves in Thursday night, bringing heavy…
-
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…
-
Warming trend brings highs back into the 70s in some of MontanaNonstop Local News Montana El Niño winter conditions ahead include drier and warmer than normal outlooks for Montana This pattern can bring dry, warm weather to the north and stormy, wet, cool weather to the southern…
-
Gusty winds expected on Saturday in western MontanaKPAX News Gusty winds expected on Saturday in western Montana A mid-level jet streak will move over northern Montana on Saturday. This will bring stornger winds back to the area, with 30-40 MPH maximum gusts possible…
-
Wind and temperatures on the rise for the weekend in MontanaNonstop Local News Montana Today, we saw dense fog in western valleys this morning This yielded to widespread sunshine in the afternoon across the region Highs reached the 50s in most major areas, which is normal for…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Hamilton, 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
MonthlyTwin Lakes, records since 1983. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Lolo 58 km
Forecasters' discussion
From the National Weather Service office in MSO, issued 1 day 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 4Search index and reflects what the press published. Terms of use.