Boise Air Terminal (BOI) Weather 05/21/2025
Today
70
Sunny
Tonight
50
Increasing Clouds
Thursday
75
Mostly Cloudy then Slight Chance T-storms
Thursday Night
46
Mostly Clear
Friday
75
Mostly Sunny
Friday Night
47
Mostly Clear
Saturday
77
Sunny
Saturday Night
51
Clear
Sunday
85
Sunny
Sunday Night
56
Mostly Clear
Memorial Day
89
Sunny
Monday Night
58
Partly Cloudy
Tuesday
87
Mostly Sunny
Weekly Forecast
Today
Sunny, with a high near 70. Calm wind becoming west northwest around 5 mph in the afternoon.
Tonight
Increasing clouds, with a low around 50. Calm wind becoming southeast 5 to 7 mph after midnight.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 75. Southeast wind 5 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Thursday Night
Mostly clear, with a low around 46. Northwest wind 5 to 8 mph becoming calm after midnight.
Friday
Mostly sunny, with a high near 75. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 77.
Saturday Night
Clear, with a low around 51.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 56.
Memorial Day
Sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 87.