Issaquah, WA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Cloudy with Light Rain 40°F
Feels Like 40°F  
Humidity 96% Dew Point 39°F Wind Calm Barometer N/A
Visibility 1.2 mi.
Report from a MADIS/MESONET weather station 2.2 mi. E of central Issaquah
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Point Forecast at a Glance

WedDec 3
Wed Dec 3: Rain Likely, Low 40F
60%
 
40
ThuDec 4
Thu Dec 4: Rain, High 48F, Low 45F
100%
48
45
FriDec 5
Fri Dec 5: Rain, High 56F, Low 46F
100%
56
46
SatDec 6
Sat Dec 6: Rain, High 53F, Low 46F
90%
53
46
SunDec 7
Sun Dec 7: Rain, High 56F, Low 47F
50%
56
47
MonDec 8
Mon Dec 8: Rain, High 57F, Low 48F
50%
57
48
TueDec 9
Tue Dec 9: Rain, High 56F, Low 45F
50%
56
45

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 48°F to 57°F. Unsettled weather expected with rain likely on at least 7 days.

Climate Context

This week's forecast shows temperatures running 9°F above the historical average for December. Normal highs for this period are around 45°F with lows around 34°F.

This Date in Weather History

1982 - The temperature in New York City's Central Park reached 72 degrees to establish a record high for December. The month as a whole was also the warmest of record.

More on this and other weather history

Issaquah, WA 7 Day Weather Forecast Details

Wednesday Dec 3

Rain Likely

Night: Rain likely, mainly between 3am and 4am. Patchy fog before 3am. Otherwise, cloudy, with a low around 40. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Dec 4

Rain

Day: Rain. High near 48. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Rain

Night: Rain. Low around 45. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday Dec 5

Rain

Day: Rain. High near 56. Southwest wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Rain

Night: Rain. Low around 46. South southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday Dec 6

Rain

Day: Rain. High near 53. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Rain

Night: Rain. Low around 46. Chance of precipitation is 90%.

Sunday Dec 7

Rain

Day: Rain. Cloudy, with a high near 56.

Rain

Night: Rain. Mostly cloudy, with a low around 47.

Monday Dec 8

Rain

Day: Rain. Cloudy, with a high near 57.

Rain

Night: Rain. Cloudy, with a low around 48.

Tuesday Dec 9

Rain

Day: Rain. Cloudy, with a high near 56.

Rain

Night: Rain. Cloudy, with a low around 45.

Wednesday Dec 10

Rain

Day: Rain. Cloudy, with a high near 54.


About Issaquah, WA

Issaquah ( ISS-ə-kwah) is a city in King County, Washington, United States. The population was 40,051 at the 2020 census. Located in a valley and bisected by Interstate 90, the city is bordered by the Sammamish Plateau to the north and the "Issaquah Alps" to the south. It is home to the headquarters of the multinational retail company Costco Wholesale Corporation. Issaquah is included in the Seattle metropolitan area.

Content from Wikipedia, licensed under CC BY-SA 3.0.

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Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.