Daily Superforecast
asLast update: 19:38 local time
Friday, Nov 07
Wind
Weather
224°
SW
00h
8 kts
max 18 kts
4° C
1
90%
900 hpa
210°
SSW
01h
9 kts
max 22 kts
0.19 mm
3° C
0
94%
901 hpa
225°
SW
02h
10 kts
max 23 kts
0.11 mm
4° C
0
93%
902 hpa
237°
WSW
03h
10 kts
max 22 kts
0.41 mm
4° C
0
94%
904 hpa
226°
SW
04h
8 kts
max 21 kts
0.08 mm
3° C
0
94%
904 hpa
235°
SW
05h
6 kts
max 19 kts
0.08 mm
3° C
1
91%
905 hpa
222°
SW
06h
7 kts
max 18 kts
0.31 mm
3° C
0
96%
906 hpa
227°
SW
07h
8 kts
max 19 kts
0.76 mm
3° C
0
94%
907 hpa
224°
SW
08h
7 kts
max 18 kts
0.27 mm
3° C
0
94%
907 hpa
229°
SW
09h
6 kts
max 19 kts
0.51 mm
3° C
1
94%
908 hpa
227°
SW
10h
6 kts
max 16 kts
4° C
2
91%
908 hpa
236°
SW
11h
7 kts
max 18 kts
0.19 mm
4° C
1
92%
909 hpa
233°
SW
12h
7 kts
max 17 kts
0.11 mm
4° C
2
91%
909 hpa
226°
SW
13h
6 kts
max 15 kts
0.09 mm
4° C
2
90%
910 hpa
235°
SW
14h
4 kts
max 11 kts
4° C
3
91%
910 hpa
213°
SSW
15h
4 kts
max 10 kts
0.07 mm
4° C
3
92%
910 hpa
184°
S
16h
3 kts
max 10 kts
4° C
3
91%
910 hpa
224°
SW
17h
6 kts
max 13 kts
0.2 mm
4° C
1
93%
910 hpa
183°
S
18h
5 kts
max 11 kts
0.05 mm
3° C
1
91%
911 hpa
160°
SSE
19h
4 kts
max 10 kts
3° C
1
85%
912 hpa
160°
SSE
20h
4 kts
max 9 kts
3° C
2
83%
912 hpa
158°
SSE
21h
4 kts
max 7 kts
3° C
2
85%
912 hpa
143°
SE
22h
4 kts
max 5 kts
0.05 mm
3° C
1
86%
912 hpa
131°
SE
23h
5 kts
max 7 kts
3° C
1
81%
912 hpa
Saturday, Nov 08
Wind
Weather
117°
ESE
00h
5 kts
max 6 kts
3° C
1
78%
912 hpa
99°
E
01h
4 kts
max 5 kts
3° C
1
78%
912 hpa
96°
E
02h
5 kts
max 8 kts
3° C
1
79%
913 hpa
94°
E
03h
6 kts
max 8 kts
3° C
0
75%
912 hpa
98°
E
04h
5 kts
max 5 kts
3° C
0
73%
911 hpa
90°
E
05h
4 kts
max 4 kts
3° C
2
69%
911 hpa
99°
E
06h
4 kts
max 4 kts
3° C
2
63%
911 hpa
92°
E
07h
5 kts
max 5 kts
4° C
2
53%
911 hpa
105°
ESE
08h
6 kts
max 17 kts
4° C
2
49%
911 hpa
120°
ESE
09h
10 kts
max 25 kts
5° C
2
52%
911 hpa
119°
ESE
10h
10 kts
max 25 kts
6° C
4
47%
911 hpa
122°
ESE
11h
10 kts
max 23 kts
8° C
8
46%
911 hpa
126°
SE
12h
11 kts
max 24 kts
8° C
8
49%
910 hpa
122°
ESE
13h
11 kts
max 24 kts
9° C
9
49%
910 hpa
124°
SE
14h
13 kts
max 26 kts
9° C
9
48%
910 hpa
123°
ESE
15h
14 kts
max 28 kts
8° C
8
48%
909 hpa
120°
ESE
16h
15 kts
max 29 kts
7° C
7
47%
909 hpa
117°
ESE
17h
15 kts
max 27 kts
7° C
3
47%
909 hpa
118°
ESE
18h
18 kts
max 32 kts
6° C
3
46%
909 hpa
118°
ESE
19h
20 kts
max 33 kts
6° C
2
46%
909 hpa
118°
ESE
20h
20 kts
max 34 kts
6° C
2
45%
909 hpa
117°
ESE
21h
20 kts
max 34 kts
6° C
2
44%
909 hpa
117°
ESE
22h
21 kts
max 34 kts
6° C
1
45%
909 hpa
116°
ESE
23h
21 kts
max 35 kts
6° C
1
47%
909 hpa
Sunday, Nov 09
Wind
Weather
116°
ESE
00h
20 kts
max 34 kts
6° C
2
47%
909 hpa
114°
ESE
01h
20 kts
max 33 kts
6° C
2
46%
909 hpa
114°
ESE
02h
19 kts
max 32 kts
6° C
2
45%
909 hpa
115°
ESE
03h
19 kts
max 32 kts
6° C
2
43%
909 hpa
115°
ESE
04h
20 kts
max 33 kts
6° C
2
42%
909 hpa
122°
ESE
05h
14 kts
max 22 kts
4° C
1
53%
897 hpa
122°
ESE
06h
14 kts
max 22 kts
5° C
1
52%
898 hpa
122°
ESE
07h
14 kts
max 22 kts
5° C
1
51%
898 hpa
123°
ESE
08h
13 kts
max 22 kts
6° C
4
50%
898 hpa
124°
SE
09h
13 kts
max 22 kts
7° C
6
48%
898 hpa
125°
SE
10h
12 kts
max 21 kts
9° C
9
46%
898 hpa
127°
SE
11h
11 kts
max 19 kts
10° C
10
46%
898 hpa
128°
SE
12h
10 kts
max 18 kts
11° C
11
45%
898 hpa
130°
SE
13h
9 kts
max 16 kts
12° C
12
44%
898 hpa
130°
SE
14h
9 kts
max 16 kts
12° C
12
45%
898 hpa
130°
SE
15h
9 kts
max 16 kts
11° C
11
45%
898 hpa
130°
SE
16h
8 kts
max 16 kts
11° C
11
45%
898 hpa
129°
SE
17h
8 kts
max 15 kts
10° C
10
47%
898 hpa
128°
SE
18h
9 kts
max 14 kts
9° C
9
49%
898 hpa
127°
SE
19h
9 kts
max 13 kts
8° C
8
50%
898 hpa
128°
SE
20h
8 kts
max 11 kts
8° C
8
50%
898 hpa
128°
SE
21h
7 kts
max 9 kts
8° C
8
50%
898 hpa
129°
SE
22h
6 kts
max 7 kts
8° C
8
50%
898 hpa
132°
SE
23h
6 kts
max 6 kts
8° C
8
48%
898 hpa
Nearby spots (within 25 km)
Find more spots like this
Look at our wind map to find more spots among our 160,000 spots.
Find spot or weather stationMt. Si popularity
Most popular spots in United States of America
Have a look at the top kitesurfing, windsurfing, sailing, surfing or fishing spots in United States of America
Most visited spots in United States of AmericaMost visited spots worldwide
Additional information
General
This is the wind, wave and weather Superforecast 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 or paragliding.
Superforecast
The Superforecast is based on the best high resolution weather prediction models. The Superforecast is available for Europe, North America, South Africa, Egypt and the Canary Islands. The horizontal resolution is 5 kilometers. The Superforecast is updated 4 times per day. Predictions are available in time steps of 1 hour for up to 3 days into the future. Forecast and Superforecast are based on different physical models and therefore may cause divergent predictions. Due to its higher horizontal resolution the Superforecast tends to be more accurate, especially for locations with a complex topography and local thermal effects. The arrows point in the direction in which the wind is blowing.Check the Superforecast 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 the Superforecast 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.