Daily forecast
as
Last update: 20:38 local time / This forecast is based on the GFS model
Saturday, Jan 17
Wind
Weather
01h
7 kts
max 10 kts
1° C
915 hpa
04h
7 kts
max 9 kts
0° C
914 hpa
07h
7 kts
max 9 kts
0° C
913 hpa
10h
6 kts
max 10 kts
4° C
913 hpa
13h
4 kts
max 7 kts
10° C
912 hpa
16h
4 kts
max 5 kts
6° C
912 hpa
19h
6 kts
max 9 kts
2° C
912 hpa
22h
6 kts
max 7 kts
1° C
912 hpa
Sunday, Jan 18
Wind
Weather
01h
6 kts
max 7 kts
1° C
912 hpa
04h
5 kts
max 7 kts
1° C
912 hpa
07h
5 kts
max 6 kts
1° C
912 hpa
10h
3 kts
max 6 kts
5° C
913 hpa
13h
1 kts
max 3 kts
10° C
913 hpa
16h
2 kts
max 2 kts
6° C
912 hpa
19h
5 kts
max 6 kts
2° C
913 hpa
22h
6 kts
max 7 kts
1° C
913 hpa
Monday, Jan 19
Wind
Weather
01h
6 kts
max 7 kts
1° C
913 hpa
04h
6 kts
max 7 kts
0° C
913 hpa
07h
6 kts
max 9 kts
0° C
913 hpa
10h
4 kts
max 8 kts
5° C
913 hpa
13h
1 kts
max 3 kts
10° C
913 hpa
16h
2 kts
max 2 kts
6° C
911 hpa
19h
5 kts
max 5 kts
2° C
911 hpa
22h
5 kts
max 5 kts
2° C
910 hpa
Tuesday, Jan 20
Wind
Weather
01h
4 kts
max 4 kts
2° C
909 hpa
04h
4 kts
max 4 kts
2° C
908 hpa
07h
3 kts
max 3 kts
1° C
908 hpa
10h
1 kts
max 1 kts
5° C
908 hpa
13h
2 kts
max 2 kts
7° C
907 hpa
16h
1 kts
max 1 kts
4° C
907 hpa
19h
3 kts
max 3 kts
2° C
907 hpa
22h
3 kts
max 3 kts
2° C
908 hpa
Wednesday, Jan 21
Wind
Weather
01h
3 kts
max 3 kts
1° C
908 hpa
04h
3 kts
max 3 kts
1° C
909 hpa
07h
4 kts
max 4 kts
0° C
910 hpa
10h
3 kts
max 5 kts
4° C
911 hpa
13h
3 kts
max 7 kts
7° C
910 hpa
16h
5 kts
max 6 kts
4° C
910 hpa
19h
6 kts
max 9 kts
1° C
909 hpa
22h
6 kts
max 8 kts
0° C
908 hpa
Thursday, Jan 22
Wind
Weather
01h
5 kts
max 6 kts
0° C
906 hpa
04h
4 kts
max 4 kts
0° C
905 hpa
07h
4 kts
max 4 kts
0° C
903 hpa
10h
2 kts
max 3 kts
3° C
903 hpa
13h
3 kts
max 7 kts
5° C
903 hpa
16h
2 kts
max 3 kts
3° C
901 hpa
19h
2 kts
max 5 kts
0.95 mm
1° C
900 hpa
22h
5 kts
max 16 kts
2.02 mm
2° C
898 hpa
Friday, Jan 23
Wind
Weather
01h
9 kts
max 23 kts
0.64 mm
1° C
896 hpa
04h
7 kts
max 20 kts
5.1 mm
0° C
895 hpa
07h
6 kts
max 16 kts
2.03 mm
-1° C
894 hpa
10h
6 kts
max 16 kts
1.78 mm
-1° C
894 hpa
13h
7 kts
max 19 kts
2.66 mm
-1° C
893 hpa
16h
9 kts
max 20 kts
2.03 mm
-1° C
894 hpa
19h
3 kts
max 6 kts
4.6 mm
-3° C
897 hpa
22h
2 kts
max 3 kts
3.21 mm
-4° C
899 hpa
Saturday, Jan 24
Wind
Weather
01h
2 kts
max 6 kts
2.61 mm
-4° C
900 hpa
04h
4 kts
max 16 kts
3.97 mm
-4° C
901 hpa
07h
5 kts
max 17 kts
3.1 mm
-4° C
902 hpa
10h
5 kts
max 17 kts
3.21 mm
-4° C
903 hpa
13h
5 kts
max 16 kts
3.1 mm
-3° C
904 hpa
16h
3 kts
max 5 kts
3.22 mm
-4° C
904 hpa
19h
1 kts
max 2 kts
1.45 mm
-6° C
905 hpa
22h
0 kts
max 1 kts
0.71 mm
-5° C
904 hpa
Sunday, Jan 25
Wind
Weather
01h
3 kts
max 4 kts
3.13 mm
-7° C
905 hpa
04h
2 kts
max 5 kts
2.38 mm
-8° C
907 hpa
07h
0 kts
max 1 kts
0.88 mm
-10° C
910 hpa
10h
0 kts
max 1 kts
-8° C
913 hpa
13h
2 kts
max 2 kts
-5° C
913 hpa
16h
2 kts
max 3 kts
-6° C
914 hpa
19h
4 kts
max 4 kts
-12° C
915 hpa
22h
5 kts
max 5 kts
-13° C
915 hpa
Monday, Jan 26
Wind
Weather
01h
5 kts
max 5 kts
-12° C
915 hpa
04h
5 kts
max 6 kts
-11° C
915 hpa
07h
5 kts
max 5 kts
-11° C
914 hpa
10h
2 kts
max 4 kts
-5° C
915 hpa
13h
1 kts
max 1 kts
-3° C
915 hpa
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Additional information
General
This is the wind, wave and weather forecast for Mt. Si in Washington, United States of America. Windfinder specializes in wind, waves, tides and weather reports & forecasts for wind related sports like kitesurfing, windsurfing, surfing, sailing, fishing or paragliding.
Forecast
This forecast is based on the GFS model. Forecasts are available worldwide. The horizontal resolution is about 13 km. Forecasts are computed 4 times a day, at about 9:00 PM, 3:00 AM, 9:00 AM and 3:00 PM Pacific Standard Time. Predictions are available in time steps of 3 hours for up to 10 days into the future. The arrows point in the direction in which the wind is blowing.Check the wind forecast for Mt. Si when you search for the best travel destinations for your kiteboarding, windsurfing or sailing vacations in United States of America. Or use our wind forecast to find the wind speed today in Mt. Si or to have a look at the wind direction tomorrow at Mt. Si.
Severe Weather Warnings
When a severe weather warning or advisory is provided by the local meteorological institute, we display it as a banner above the wind forecast.The weather warning, for example a high wind warning, can help you prepare for dangerous weather conditions and avoid weather-related risks. The color scale indicates the intensity of the predicted weather event. For more details click or tap on the warning. General information about severe weather warnings can be found in our help section.
Please be aware that severe weather may occur without a prior severe weather warning being reported.
Units
We use knots and degrees Celsius as our default units. These units are often used by sailors, kiters, surfers, windsurfers and paragliders. Use website settings to switch between units and 7 different languages at any time. For converting between wind speed units such as knots, km/h (kilometers per hour), m/s (meters per second), and mph (miles per hour) use our wind speed calculator.