Lewiston, Saturday, 8 August, 18:05
Clear. Feels like 101°. High 105°, low 59°.
Lewiston, Sunday, 9 August
Clear. High 103°, low 62°.
Lewiston, Monday, 10 August
Clear. High 104°, low 63°.
Lewiston, Tuesday, 11 August
Clear. High 102°, low 62°.
Lewiston, Wednesday, 12 August
Clear. High 99°, low 62°.
Lewiston, Thursday, 13 August
Overcast. High 92°, low 63°.
Lewiston, Friday, 14 August
Overcast. High 93°, low 64°.
Lewiston, Saturday, 15 August
Clear. High 96°, low 61°.
Lewiston, Sunday, 16 August
Mostly clear. High 94°, low 59°.
Lewiston, Monday, 17 August
Overcast. High 90°, low 62°.
Lewiston, Tuesday, 18 August
Partly cloudy. High 93°, low 63°.
Lewiston, Wednesday, 19 August
Mostly clear. High 97°, low 55°.
Lewiston, Thursday, 20 August
Clear. High 97°, low 55°.
Lewiston, Friday, 21 August
Clear. High 101°, low 58°.
Lewiston, Saturday, 22 August
Clear. High 96°, low 62°.
Lewiston, Sunday, 23 August
Clear. High 97°, low 60°.
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Lewiston, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
They are real temperature extremes recorded in Lewiston, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.