August weather forecast
Idaho, USA

Flag of Idaho, USA
Flag of Idaho, USA

Weather in August

August is warm to hot in the summer of Idaho, with mostly clear skies. Days register in the warm to hot zone of 79°F (26.1°C) to 94°F (34.4°C), while nights are comfortable between 33°F (0.6°C) to 59°F (15°C).
Little precipitation occurs in the north and east, but windstorms and forest fires are a threat to the tree-covered mountain slopes. White water rafting is enjoyable in the morning sun on the Boise River. Mountain biking is popular with the vast number of trails and loops. Falcons, hawks, eagles, and other birds in the wild keep the interests of the bird watchers and hobbyists alive. Catch the time after sunrise for the best pictures.
Wear sunscreen and avoid midday heat when temperatures can reach 100°F (37.8°C). Light summer clothing keeps perspiration at bay during the day, but layered clothing is better to counter the drop in temperatures during the night. Expect temperatures to cool off gradually by the end of summer in August in Idaho.


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