| NWS Forecast for: Harlem MT Issued by: National Weather Service Great Falls, MT Last Update: 3:21 am MDT Aug 18, 2026 |  |
| Today: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 29. East southeast wind 5 to 10 km/h becoming south southwest in the afternoon. Chance of precipitation is 30%. Tonight: A 30 percent chance of showers, mainly before 7pm. Patchy smoke before 4am, then patchy smoke after 5am. Partly cloudy, with a low around 12. South southwest wind 5 to 11 km/h becoming west northwest after midnight. Wednesday: Patchy smoke between 1pm and 2pm. Mostly sunny, with a high near 31. West northwest wind 8 to 18 km/h, with gusts as high as 32 km/h. Wednesday Night: Partly cloudy, with a low around 13. West northwest wind 11 to 16 km/h becoming east northeast 5 to 10 km/h after midnight. Winds could gust as high as 29 km/h. Thursday: Sunny, with a high near 31. East northeast wind 5 to 13 km/h. Thursday Night: Mostly clear, with a low around 12. Northeast wind 10 to 18 km/h, with gusts as high as 32 km/h. Friday: Sunny, with a high near 30. East southeast wind 10 to 15 km/h increasing to 18 to 23 km/h in the afternoon. Winds could gust as high as 37 km/h. Friday Night: Partly cloudy, with a low around 15. East southeast wind 24 to 26 km/h, with gusts as high as 40 km/h. Saturday: Partly sunny, with a high near 32. Breezy. Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 14. Sunday: Sunny, with a high near 30. Sunday Night: Mostly clear, with a low around 12. Monday: Sunny, with a high near 31. | |
| Harlem MT 48.54°N 108.78°W (Elev. 2339 m) | |
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