Heisson, WA Weather Forecast
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Heisson Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Sunny | Patchy Fog | Becoming Cloudy | Cloudy | Mostly Cloudy | Partly Cloudy | Rain | Rain | Chance of Rain | Rain | Rain | Chance of Rain |
| Hi: 51°FHi: 11°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C | Lo: 40°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 45°FLo: 7°C |
| POP: 70% | POP: 80% | POP: 50% | POP: 70% | POP: 70% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 102 PM PST Sun Nov 01 2026 

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Issued: 149 PM PST Sun Nov 1 2026
Discussion
...Now Through Saturday...This afternoon satellite imagery continues to show prolific low stratus across the interior valleys as a strong temperature inversion and weaker November sun-angle/insolation struggle to facilitate any appreciable clearing along the I-5 corridor. Those along the coast and above roughly ~1000-2000ft will continue to enjoy sunny conditions into the evening. As the axis of the upper- level ridge passes overhead tonight, the temperature inversion will strengthen f...
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