Temperature
Cool by day, cold at night.
Boise City is usually most comfortable in March and October. Typical daytime highs range from 49–91°F across the year. Most months see little rain.

Cool by day, cold at night.
A few rainy days. About 3 wet days, the lowest monthly average.
Plenty of sun this month.
In November, afternoons feel about 43° and nights feel near 26°.
Mostly clear skies this month.
Breezy conditions are typical in November. More a comfort consideration than a planning concern.
November late afternoons are around 52°F, easing to about 45°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 50 | 26 | 0.6 | 3 | 8.8 | 53 |
| Feb | 54 | 28 | 0.5 | 3 | 9.3 | 51 |
| Mar | 64 | 35 | 1.2 | 5 | 10.4 | 46 |
| Apr | 71 | 42 | 1.6 | 6 | 11.3 | 44 |
| May | 79 | 52 | 2.0 | 7 | 12.2 | 49 |
| Jun | 88 | 61 | 1.9 | 9 | 12.9 | 51 |
| Jul | 91 | 66 | 2.1 | 10 | 13.1 | 52 |
| Aug | 89 | 64 | 2.6 | 10 | 12.2 | 55 |
| Sep | 83 | 57 | 1.4 | 5 | 10.9 | 53 |
| Oct | 72 | 45 | 1.4 | 4 | 9.8 | 52 |
| Nov | 59 | 35 | 0.6 | 3 | 8.6 | 50 |
| Dec | 49 | 26 | 0.8 | 4 | 8.2 | 53 |
Similar climates
Want a side-by-side climate view? Compare Boise City with New York City.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology