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Onaway Weather Forecast
| REST OF TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY |
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| Mostly Cloudy | Clearing | Sunny | Mostly Clear | Mostly Cloudy | Mostly Cloudy | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 65°FHi: 18°C | Lo: 36°FLo: 2°C | Hi: 66°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 47°FLo: 8°C | Hi: 66°FHi: 19°C Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C Lo: 45°FLo: 7°C | Hi: 73°FHi: 23°C Lo: 45°FLo: 7°C | Hi: 73°FHi: 23°C Lo: 45°FLo: 7°C | Hi: 73°FHi: 23°C Lo: 45°FLo: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1135 AM PDT Sun Sep 27 2026 
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Issued: 1103 AM PDT Sun Sep 27 2026
Key Messages
- Areas of frost Monday morning over eastern Washington and Idaho Panhandle mountain valleys and Upper Columbia Basin, as well the outlying areas around the Spokane area.
- Mild and dry pattern this week, except for rain near the Cascade crest and chance of rain North Idaho Panhandle on Tuesday
Discussion
... Today through Monday: A dry air mass will remain over the Inland NW through Sunday night with precipitable water values ranging from near 40-70 percent of normal. This combined with l...