| NWS Forecast for: Lewiston Area Issued by: National Weather Service Spokane, WA Last Update: 1010 AM PDT Tue Aug 18 2026 |  |
| Rest Of Today: Sunny. Highs in the upper 80s to mid 90s. West wind 5 to 15 mph in the afternoon. Gusts up to 25 mph. Tonight: Mostly clear. Lows in the mid 50s to lower 60s. Gusts up to 25 mph in the evening. Wednesday: Sunny. Highs in the mid 80s to mid 90s. Wednesday Night: Mostly clear. Lows in the mid 50s to lower 60s. Thursday: Sunny, warmer. Highs in the 90s. Thursday Night Through Friday Night: Mostly cloudy. Lows in the lower to mid 60s. Highs in the 90s. Saturday: Partly cloudy. Highs in the mid 80s to lower 90s. Saturday Night: Mostly clear with a 20 percent chance of rain showers. Lows in the mid to upper 50s. Sunday And Sunday Night: Mostly clear. Highs in the lower to mid 80s. Lows in the 50s. Monday: Warmer, sunny. Highs in the mid 80s to lower 90s. | |
| Zone Forecast: Lewiston Area | |
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