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Hamilton, MT 59840 Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
This Afternoon
Sunny, with a high near 68. East wind around 3 mph.
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Tonight
A chance of rain before 2am, then rain and patchy fog. Mostly cloudy. Low around 40, with temperatures rising to around 45 overnight. Southwest wind around 3 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
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Friday
Rain. Cloudy, with a high near 47. Northwest wind 2 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 2 hrs ago.
Hourly
Hourly forecast- Now67°
- 5 PM66°
- 6 PM63°31%
- 7 PM59°25%
- 8 PM54°30%
- 9 PM52°40%
- 10 PM50°29%
- 11 PM49°22%
- Fri12 AM49°17%
- 1 AM48°25%
- 2 AM48°50%
- 3 AM46°74%
- 4 AM46°78%
- 5 AM45°86%
- 6 AM45°96%
- 7 AM44°93%
- 8 AM41°94%
- 9 AM43°97%
- 10 AM45°96%
- 11 AM45°91%
- 12 PM45°86%
- 1 PM47°68%
- 2 PM45°57%
- 3 PM45°40%
10-day forecast
Details- TodayOct 22Sunny86%40°68°
- FriOct 23Rain97%30°47°
- SatOct 24Patchy Fog then Mostly Sunny29°52°
- SunOct 25Patchy Fog then Sunny31°55°
- MonOct 26Mostly Sunny42%30°55°
- TueOct 27Chance Light Rain51%28°49°
- WedOct 28Slight Chance Light Rain then Mostly Sunny16%27°48°
- 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-
Urgent Winter Weather Message Issued for 15 Counties in Montana as Snow Conditions WorsenNWS Great Falls has issued Winter Weather Advisories for mountain areas of southwest and central Montana, with 2 to 5 inches of snow expected Friday. Gusts as high as 45 mph are possible in the Little Belt, Highwood…
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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…
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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…
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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…
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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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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…
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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…
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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 3 hrs ago
Discussion
KEY MESSAGES:
- Change to more typical fall weather coming Friday.
Temperatures warm yet again towards late summer levels, however satellite clearly shows clouds moving up from the south.
Showers develop this evening from south to north. A few thunderstorms will also be possible in Idaho and Lemhi Counties. For most locations at least a tenth of an inch of rain is likely, in northwest MT precipitation will be showery along the front and there is a 40 to 60% chance of receiving up to a tenth. After a fairly dry start to October, from Lost Trail Pass through southwest MT there is a 70 to 90% chance of receiving up to 1/2 of an inch of total precipitation by Friday evening. Above 6000 feet, as precipitation is ending a change over to snow is possible with a slushy trace to 3 inches in accumulations at locations like Georgetown Lake and Homestake and MacDonald Passes. Due to the timing of snow around rush hour Friday evening a winter weather advisory has been issued for the potential of slick driving conditions.
The models continue to have significant uncertainty after day 3 (Sunday). What is clear is temperatures will catch up to the calendar and October temperatures arrive. High temperatures are expected to be in the 50s for western MT and 60s for north-central ID, while low temperatures routinely fall into the teens and 20s in MT. Weather systems are less clear but there are more solutions depicting a system by mid-week. More details to come.
Aviation
A low pressure system will move northward into the Great Basin this afternoon, sending atmospheric moisture and instability northward. This will set the stage for numerous showers and isolated thunderstorms across north-central Idaho and southwest Montana by mid-afternoon through the evening hours. Precipitation becomes more widespread after 23/0600z, with periods of lowered visibility and ceilings expected through 23/1800z. Freezing levels will lower to around 5000 feet Friday evening, and while no impacts are expected, precipitation may end as wet snow at KBTM.
Mso Watches
MT...Winter Weather Advisory from 3 PM Friday to midnight MDT Friday night for Butte/Blackfoot Region.
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.