Kelso, CA Weather Forecast
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Kelso Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | FRIDAY | SATURDAY |
| Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Clear | Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 68°FLo: 20°C | Hi: 92°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 67°FLo: 19°C | Hi: 91°FHi: 33°C Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 70°FLo: 21°C | Hi: 94°FHi: 34°C Lo: 71°FLo: 22°C | Hi: 94°FHi: 34°C Lo: 71°FLo: 22°C | Hi: 94°FHi: 34°C Lo: 71°FLo: 22°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 300 PM PDT Sat Sep 19 2026 

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Issued: 1232 PM PDT Sat Sep 19 2026
Key Messages
- Dry and seasonable conditions through the weekend.
- Precipitation chances return Monday and Tuesday
- Slight warming and low precipitation chances late in the work week.
Discussion
...through Friday.
Morning satellite imagery clearly depicts a closed low spinning over southern ID. Westerly flow has ushered in much drier air, with observed PWAT values dropping over 2/3 of an inch when comparing this morning`s sounding to yesterday morning`s. The surface dewpoint has also dropped ~25F, givin...
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