59523 Weather (Chinook, MT)

Weather forecast for: Chinook MT

Last Update: 4:36 am MDT Sep 6, 2026

Overnight: A 20 percent chance of rain. Areas of fog. Otherwise, mostly cloudy, with a low around 53. Light north wind.

Sunday: Showers and thunderstorms likely, mainly before noon. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 76. Calm wind becoming northeast 5 to 7 mph in the morning. Chance of precipitation is 60%.

Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Some of the storms could be severe. Patchy fog before 2am, then patchy fog after 3am. Low around 53. East northeast wind around 7 mph becoming west northwest after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Labor Day: Rain before 9am, then showers and possibly a thunderstorm after 9am. Patchy fog before 9am. High near 69. West wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 100%.

Monday Night: Showers and possibly a thunderstorm before midnight, then rain after midnight. Low around 47. Breezy, with a west wind 24 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 90%.

Tuesday: Rain. High near 65. Breezy, with a west wind 20 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.

Tuesday Night: Partly cloudy, with a low around 45. West southwest wind 8 to 18 mph, with gusts as high as 29 mph.

Wednesday: Sunny, with a high near 75. West southwest wind 5 to 14 mph, with gusts as high as 23 mph.

Wednesday Night: Mostly clear, with a low around 49.

Thursday: Sunny, with a high near 78.

Thursday Night: A slight chance of showers. Partly cloudy, with a low around 48.

Friday: A chance of showers. Partly sunny, with a high near 66.

Friday Night: A chance of showers. Mostly cloudy, with a low around 42.

Saturday: A chance of showers. Partly sunny, with a high near 63.