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Issaquah - Next 4 Days weather forecast




    Issaquah - Average weather conditions


    Issaquah weather history chart based on the last 5 years of Issaquah weather history. If you are visiting Issaquah in near future, this Issaquah weather history chart will give you an idea of the expected weather and plan your trip accordingly.


    • Average Minimum Temperature (°C)
    • Average Maximum Temperature (°C)
    • Average Precipitation (cm)



    Best Time to Visit Issaquah


    Jan : Temperature in Issaquah is lowest during Jan. In Jan, temperature during day raise upto 8 C° and temperature during night goes down upto 2 C°. Jan is one of the rainy months in Issaquah. According to past year record, there is 13.37cm rain fall every year during Jan in Issaquah. So if you are planing to visit Issaquah during Jan, umbrella is worth considering.

    Feb : During Feb month, highest temperature is 10 C° and lowest temperature is 3 C°. Feb is one of the rainy months in Issaquah. According to past year record, there is 9.01cm rain fall every year during Feb in Issaquah.

    Mar : In Issaquah during Mar, day temperature raise upto 12 C° and night temperature goes down upto 4 C°. Mar is one of the rainy months in Issaquah. According to past year record, there is 8.94cm rain fall every year during Mar in Issaquah.

    Apr : In Apr, temperature during day raise upto 15 C° and temperature during night goes down upto 6 C°. Apr is one of the rainy months in Issaquah. According to past year record, there is 6.47cm rain fall every year during Apr in Issaquah.

    May : During May month, highest temperature is 18 C° and lowest temperature is 9 C°. Weather is quite clear during May. According to past year record, there is 4.95cm rain fall every year during May in Issaquah.

    Jun : Jun is one of the hot months in Issaquah. In Issaquah during Jun, day temperature raise upto 21 C° and night temperature goes down upto 11 C°. Weather is quite clear during Jun. According to past year record, there is 3.77cm rain fall every year during Jun in Issaquah. Overall climate during Jun is very pleasant, making this one of the best month to visit Issaquah.

    Jul : Temperature in Issaquah is at its peak during Jul. In Jul, temperature during day raise upto 24 C° and temperature during night goes down upto 13 C°. Weather is quite clear during Jul. According to past year record, there is 1.91cm rain fall every year during Jul in Issaquah. Overall weather reviews show that Jul is one of the best month to visit Issaquah.

    Aug : Temperature in Issaquah is at its peak during Aug. During Aug month, highest temperature is 24 C° and lowest temperature is 13 C°. Weather is quite clear during Aug. According to past year record, there is 2.3cm rain fall every year during Aug in Issaquah. Overall climate reports show that Aug is one of the best month to visit Issaquah.

    Sep : Sep is one of the hot months in Issaquah. In Issaquah during Sep, day temperature raise upto 21 C° and night temperature goes down upto 11 C°. Weather is quite clear during Sep. According to past year record, there is 3.53cm rain fall every year during Sep in Issaquah. Overall climate during Sep is very pleasant, making this one of the best month to visit Issaquah.

    Oct : In Oct, temperature during day raise upto 15 C° and temperature during night goes down upto 8 C°. Oct is one of the rainy months in Issaquah. According to past year record, there is 8.77cm rain fall every year during Oct in Issaquah.

    Nov : During Nov month, highest temperature is 10 C° and lowest temperature is 4 C°. Nov is one of the rainy months in Issaquah. According to past year record, there is 15.09cm rain fall every year during Nov in Issaquah. So if you are planing to visit Issaquah during Nov, umbrella is worth considering.

    Dec : Temperature in Issaquah is lowest during Dec. In Issaquah during Dec, day temperature raise upto 8 C° and night temperature goes down upto 2 C°. Dec is one of the rainy months in Issaquah. According to past year record, there is 14.55cm rain fall every year during Dec in Issaquah. So if you are planing to visit Issaquah during Dec, umbrella is worth considering.