Idaho Falls Weather & Climate

United States of America

Idaho Falls sees feels-like daytime highs peak around 31.5°C in July and nighttime lows bottom out near -10.9°C in January. May is the wettest month (~37 mm), while January is the driest (~13 mm). For sunshine, July leads with about 78% clear skies.

Best time to visit Idaho Falls

Based on mild feels-like temperatures and low rain chances, the most comfortable months are August, July, and June — expect around 1330.6°C with roughly 13% chance of rain on a given day in August.

Idaho Falls climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January-10.9° / -4.3°6%13 mm42%12.9 kph
February-7.6° / -0.1°8%13 mm43%13.8 kph
March-2.3° / 6.5°13%18 mm42%14.8 kph
April2.2° / 14.2°18%25 mm46%14.6 kph
May6.9° / 20.5°25%37 mm51%13.6 kph
June11.4° / 26.3°18%26 mm65%13.4 kph
July14° / 31.5°11%14 mm78%12.7 kph
August13° / 30.6°13%16 mm78%12.2 kph
September8.4° / 24.2°14%21 mm70%12.3 kph
October2.1° / 14.3°15%23 mm59%12.7 kph
November-4.3° / 4.3°12%20 mm47%13.3 kph
December-9.7° / -3.1°8%15 mm43%13.1 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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