| National Weather Service Forecast for:
Lewiston ID Issued by: National Weather Service Spokane, WA |
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| Updated: 2:06 am PDT Jun 22, 2026 | ||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 58. Light east wind. |
| Monday |
Sunny, with a high near 93. Calm wind becoming northwest 5 to 8 mph in the afternoon. |
| Monday Night |
Mostly clear, with a low around 58. North wind 3 to 7 mph. |
| Tuesday |
Increasing clouds, with a high near 94. Light northeast wind. |
| Tuesday Night |
Partly cloudy, with a low around 60. Northwest wind around 6 mph becoming calm in the evening. |
| Wednesday |
Sunny and hot, with a high near 97. |
| Wednesday Night |
Partly cloudy, with a low around 63. |
| Thursday |
Mostly sunny and hot, with a high near 96. |
| Thursday Night |
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 60. |
| Friday |
Showers likely. Mostly cloudy, with a high near 78. Chance of precipitation is 70%. |
| Friday Night |
A 40 percent chance of showers. Mostly cloudy, with a low around 56. |
| Saturday |
A 30 percent chance of showers. Partly sunny, with a high near 75. Breezy. |
| Saturday Night |
A 20 percent chance of showers. Mostly cloudy, with a low around 52. Breezy. |
| Sunday |
A 30 percent chance of showers. Partly sunny, with a high near 75. |
Forecast from NOAA-NWS for Lewiston ID.