May weather in Lewiston, ID
The average temperature in Lewiston in May is 60.0°F (48.1°F–72.0°F). Average precipitation: 1.69 inches.
May is a spring month in Lewiston, and is warmer than the annual average of 53.8°F. Daily temperatures swing about 23.9°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 47m. For travel, May is a comfortable month to visit.
Avg High
72.0°F
Avg Low
48.1°F
Precipitation
1.69 in
Daylight
14h 47m