Mild
Average highs are around 24°C, so days are mild rather than hot.
Weather Guide
Island Park, Idaho, United States Average Monthly Weather
Weather score42Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 9°C, sunshine averages 7.5h per day, and rainfall totals about 640mm.
Annual weather
Annual averages
Temp
9°C
Rain
640mm
Annual total
Sun
7.5h
Weather score
42
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 43mm, which is relatively low for holiday planning.
Bright
Sunshine averages 10h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Island Park, Idaho, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August24°C average high
August is one of Island Park's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August43mm average rain
August is close to Island Park's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
August10 hours average sun
August is brighter than Island Park's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August61 weather score
August scores above Island Park's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
