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Haystack Rapids Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  |  | | | | |  |  |  | |  |
| Chance of T-Storm | Chance of T-Storm | Chance of Rain | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Rain |
| Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 56°FHi: 13°C | Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C | Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C |
| POP: 100% | POP: 50% | POP: 50% | POP: 50% | POP: 90% | POP: 90% | POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 PM MDT Fri Sep 04 2026 
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Issued: 1254 PM MDT Fri Sep 4 2026
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KEY MESSAGES:- Some stronger showers and storms possible Saturday especially during the afternoon.
- Widespread showers increasing Sunday into Monday with seasonably cool temperatures persisting into early next week.
- Gradual drying trend develops mid-week alongside morning valley fog.
A broad trough of low pressure over the Pacific Northwest will maintain unseasonably cool conditions across western Montana and north-central Idaho, with valley high temperatures remaining 5 to 10 degrees ...