Weather WorldHeron Lake, WA Weather Forecast
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Heron Lake Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  |  |  | | |  |  | |  | |
| Smoke | Clearing | Mostly Clear | Sunny | Partly Cloudy | Sunny | Mostly Clear | Mostly Cloudy | Chance of Showers | Partly Cloudy | Rain Showers | Mostly Clear |
| Lo: 60°FLo: 16°C | Hi: 90°FHi: 32°C | Lo: 56°FLo: 13°C | Hi: 86°FHi: 30°C | Lo: 56°FLo: 13°C | Hi: 93°FHi: 34°C | Lo: 60°FLo: 16°C | Hi: 93°FHi: 34°C | Lo: 60°FLo: 16°C | Hi: 87°FHi: 31°C | Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C Lo: 55°FLo: 13°C |
| POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 211 PM PDT Mon Aug 17 2026 
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Heron Lake Forecast Discussion
Issued: 511 PM PDT Mon Aug 17 2026
Key Messages
- Building high pressure will lead to diminishing mountain showers and thunderstorms.
- Warm, dry conditions for the midweek.
- Weekend system brings thunder threats and gusty winds increasing fire concerns.
Discussion
... Today through Wednesday: As high pressure builds over the PNW and drier air moves in, temperatures will continue to be on the slight uptick and minimum relative humidity will continue to decrease. This will limit thunderstorm chances to only s...