Weather WorldLake Janus, WA Weather Forecast
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Lake Janus Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  | | | | |  |  |  | | | |
| Partly Cloudy | Sunny | Partly Cloudy | Sunny | Partly Cloudy | Mostly Sunny | Chance of Rain | Chance of Rain | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny |
| Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 236 PM PDT Sun Aug 09 2026 
Lake Janus Radar Loop
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