| National Weather Service Forecast for:
Hamilton MT Issued by: National Weather Service Missoula, MT |
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| Updated: 2:00 pm MDT Jun 18, 2026 | ||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 46. North northwest wind around 6 mph becoming calm in the evening. |
| Juneteenth |
Partly sunny, with a high near 84. Calm wind becoming north around 6 mph in the afternoon. |
| Friday Night |
Mostly cloudy, with a low around 53. North wind around 5 mph becoming calm in the evening. |
| Saturday |
A 40 percent chance of showers after noon. Partly sunny, with a high near 83. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph. |
| Saturday Night |
Partly cloudy, with a low around 49. West wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 26 mph. |
| Sunday |
Sunny, with a high near 82. |
| Sunday Night |
Mostly clear, with a low around 47. |
| Monday |
Sunny, with a high near 81. |
| Monday Night |
Mostly clear, with a low around 48. |
| Tuesday |
Sunny, with a high near 90. |
| Tuesday Night |
Mostly clear, with a low around 53. |
| Wednesday |
Sunny, with a high near 90. |
| Wednesday Night |
Mostly clear, with a low around 54. |
| Thursday |
Sunny, with a high near 88. |
Forecast from NOAA-NWS for Hamilton MT.