Weather WorldJohn Lake, MT Weather Forecast
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| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
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| Partly Cloudy | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 70°FHi: 21°C | Lo: 46°FLo: 8°C | Hi: 66°FHi: 19°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 PM MDT Sat Sep 19 2026 
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Issued: 1222 PM MDT Sat Sep 19 2026
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KEY MESSAGES:- Patchy fog expected Sunday morning.
- Warm, dry week ahead for the region.
- Showers return late next week or early next weekend.
The recent rainfall combined with decreasing cloud cover and stable conditions the next few days will cause patchy fog in many of the valleys of central Idaho and western Montana Sunday morning. The fog is expected to clear out by Sunday afternoon due to drier air from aloft mixing down in the afternoon.
As the cutoff low over the region moves out...