Hamilton, Montana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Hamilton MT
National Weather Service Forecast for:
Hamilton MT
Issued by: National Weather Service Missoula, MT |
Updated: 3:30 am MDT Jun 6, 2025 |
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Today
 Increasing Clouds
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Tonight
 Decreasing Clouds
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Saturday
 Mostly Sunny
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Saturday Night
 Mostly Clear
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Sunday
 Sunny
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Sunday Night
 Clear
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Monday
 Sunny
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Monday Night
 Mostly Clear
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Tuesday
 Sunny then Slight Chance T-storms
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Hi 78 °F |
Lo 49 °F |
Hi 83 °F |
Lo 51 °F |
Hi 86 °F |
Lo 52 °F |
Hi 92 °F |
Lo 57 °F |
Hi 91 °F |
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Today
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Increasing clouds, with a high near 78. Light and variable wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. |
Tonight
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Mostly cloudy, then gradually becoming mostly clear, with a low around 49. West wind 5 to 9 mph becoming south southeast in the evening. Winds could gust as high as 20 mph. |
Saturday
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Mostly sunny, with a high near 83. South wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 21 mph. |
Saturday Night
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Mostly clear, with a low around 51. West northwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 22 mph. |
Sunday
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Sunny, with a high near 86. Calm wind becoming north 5 to 7 mph in the afternoon. |
Sunday Night
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Clear, with a low around 52. |
Monday
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Sunny, with a high near 92. |
Monday Night
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Mostly clear, with a low around 57. |
Tuesday
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A slight chance of showers and thunderstorms after noon. Sunny, with a high near 91. |
Tuesday Night
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A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 56. |
Wednesday
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A chance of rain and thunderstorms. Partly sunny, with a high near 81. |
Wednesday Night
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A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51. |
Thursday
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A chance of rain and thunderstorms. Mostly sunny, with a high near 79. |
Forecast from NOAA-NWS
for Hamilton MT.
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Weather Forecast Discussion
553
FXUS65 KMSO 060810
AFDMSO
Area Forecast Discussion
National Weather Service Missoula MT
210 AM MDT Fri Jun 6 2025
DISCUSSION...
KEY MESSAGES:
- Warming and drying trend through early next week.
High pressure will strengthen and build into early next week,
bringing a significant warm up and generally dry conditions.
Monday looks like the hottest day this week with many valleys
reaching into the low 90s and nearing 100 for the lower valleys of
north central Idaho. Isolated thunderstorms will be possible
across Lemhi County and southwest Montana by Monday and Tuesday
afternoons.
Ensemble forecast models are trying to show a pattern change mid
to late next week. With a trough digging over the west coast,
forcing the subtropical high (four-corners high) west into the
Pacific. The question becomes what is the moisture source as this
pattern would favor wide-scale subsidence over the eastern
Pacific. More to come as this forecast evolves.
&&
.AVIATION...A weak wave will allow for breezy west to northwest
winds late afternoon into the evening today. An isolated shower or
thunderstorm is possible in northwest MT as well, due to the low
probability no showers are currently mentioned in KGPI`s Terminal
Area Forecast. High pressure will build on Saturday producing VFR
conditions.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&
$$
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