Weather WorldJim Black Lake, WA Weather Forecast
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Jim Black Lake Weather Forecast
| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
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| Mostly Cloudy | Hazy | Hazy | Hazy | Partly Cloudy | Partly Cloudy | Rain Showers | Chance of T-Storm | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy |
| Lo: 60°FLo: 16°C | Hi: 86°FHi: 30°C | Lo: 60°FLo: 16°C | Hi: 90°FHi: 32°C | Lo: 63°FLo: 17°C | Hi: 90°FHi: 32°C | Lo: 67°FLo: 19°C | Hi: 85°FHi: 29°C | Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Hi: 83°FHi: 28°C Lo: 56°FLo: 13°C | Hi: 83°FHi: 28°C Lo: 56°FLo: 13°C |
| POP: 20% | POP: 70% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1035 PM PDT Tue Aug 18 2026 
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Jim Black Lake Forecast Discussion
Issued: 1059 PM PDT Tue Aug 18 2026
Key Messages
- Warm, dry conditions through Friday.
- Weekend system brings thunder threat and gusty winds increasing fire concerns.
Discussion
... Today through Friday: With the ridge over the region, warm, dry conditions will persist through the period. Highs will rise a few degrees from the previous day and bring moderate HeatRisk to portions of the Basin on Thursday and Friday. The Basin and valleys have at least 60% probability of highs greater than 90 degrees for the...