Daily Superforecast
asLast update: 19:38 local time
Saturday, Feb 21
Wind
Weather
129°
SE
00h
15 kts
max 33 kts
-2° C
-8
65%
900 hpa
134°
SE
01h
17 kts
max 34 kts
-2° C
-8
65%
901 hpa
130°
SE
02h
17 kts
max 35 kts
-2° C
-8
64%
901 hpa
127°
SE
03h
18 kts
max 36 kts
-2° C
-9
65%
901 hpa
126°
SE
04h
20 kts
max 38 kts
-2° C
-9
64%
900 hpa
126°
SE
05h
20 kts
max 39 kts
-2° C
-9
63%
900 hpa
125°
SE
06h
21 kts
max 42 kts
-2° C
-9
63%
900 hpa
129°
SE
07h
22 kts
max 43 kts
-2° C
-9
62%
900 hpa
129°
SE
08h
23 kts
max 44 kts
-2° C
-9
62%
900 hpa
130°
SE
09h
23 kts
max 44 kts
-1° C
-8
58%
901 hpa
132°
SE
10h
22 kts
max 42 kts
0° C
-7
58%
902 hpa
131°
SE
11h
21 kts
max 40 kts
0.43 mm
-1° C
-8
73%
903 hpa
130°
SE
12h
19 kts
max 37 kts
0.88 mm
-1° C
-7
74%
903 hpa
127°
SE
13h
20 kts
max 37 kts
1.1 mm
-1° C
-7
76%
903 hpa
126°
SE
14h
19 kts
max 35 kts
0.53 mm
0° C
-6
71%
903 hpa
124°
SE
15h
18 kts
max 36 kts
1.82 mm
0° C
-6
77%
903 hpa
123°
ESE
16h
19 kts
max 37 kts
1.5 mm
0° C
-6
74%
902 hpa
121°
ESE
17h
18 kts
max 36 kts
1.4 mm
0° C
-6
69%
902 hpa
122°
ESE
18h
18 kts
max 37 kts
0.29 mm
1° C
-5
67%
903 hpa
121°
ESE
19h
18 kts
max 37 kts
0.23 mm
1° C
-4
64%
902 hpa
123°
ESE
20h
19 kts
max 41 kts
1° C
-4
67%
902 hpa
128°
SE
21h
22 kts
max 44 kts
1° C
-5
67%
902 hpa
131°
SE
22h
24 kts
max 46 kts
1° C
-5
67%
902 hpa
128°
SE
23h
23 kts
max 45 kts
1° C
-5
66%
902 hpa
Sunday, Feb 22
Wind
Weather
130°
SE
00h
23 kts
max 44 kts
1° C
-5
62%
902 hpa
128°
SE
01h
21 kts
max 42 kts
2° C
-4
61%
902 hpa
126°
SE
02h
20 kts
max 40 kts
2° C
-3
60%
902 hpa
123°
ESE
03h
21 kts
max 40 kts
2° C
-3
60%
901 hpa
123°
ESE
04h
20 kts
max 41 kts
2° C
-3
59%
901 hpa
124°
SE
05h
21 kts
max 43 kts
2° C
-4
59%
901 hpa
125°
SE
06h
23 kts
max 44 kts
2° C
-4
59%
901 hpa
128°
SE
07h
21 kts
max 42 kts
0.27 mm
2° C
-4
62%
902 hpa
124°
SE
08h
21 kts
max 42 kts
1.03 mm
2° C
-4
64%
901 hpa
128°
SE
09h
22 kts
max 41 kts
0.24 mm
1° C
-5
66%
903 hpa
131°
SE
10h
19 kts
max 35 kts
0.56 mm
2° C
-4
66%
904 hpa
134°
SE
11h
16 kts
max 28 kts
0.32 mm
3° C
-2
67%
905 hpa
139°
SE
12h
13 kts
max 22 kts
0.15 mm
3° C
-1
70%
906 hpa
135°
SE
13h
11 kts
max 19 kts
0.52 mm
3° C
0
73%
907 hpa
129°
SE
14h
9 kts
max 14 kts
0.32 mm
3° C
0
78%
908 hpa
140°
SE
15h
6 kts
max 11 kts
3° C
1
77%
908 hpa
150°
SSE
16h
6 kts
max 13 kts
4° C
2
73%
908 hpa
131°
SE
17h
7 kts
max 14 kts
3° C
0
72%
908 hpa
125°
SE
18h
8 kts
max 14 kts
3° C
-1
67%
908 hpa
117°
ESE
19h
10 kts
max 15 kts
2° C
-2
67%
908 hpa
115°
ESE
20h
10 kts
max 18 kts
1° C
-2
71%
908 hpa
118°
ESE
21h
11 kts
max 21 kts
1° C
-3
68%
908 hpa
127°
SE
22h
12 kts
max 21 kts
2° C
-2
71%
908 hpa
129°
SE
23h
10 kts
max 16 kts
2° C
-2
71%
909 hpa
Monday, Feb 23
Wind
Weather
134°
SE
00h
12 kts
max 20 kts
2° C
-2
73%
909 hpa
133°
SE
01h
11 kts
max 18 kts
0.1 mm
2° C
-1
73%
909 hpa
121°
ESE
02h
8 kts
max 16 kts
0.21 mm
2° C
-1
73%
909 hpa
120°
ESE
03h
10 kts
max 24 kts
0.88 mm
2° C
-2
80%
908 hpa
137°
SE
04h
11 kts
max 24 kts
1.41 mm
2° C
-2
82%
908 hpa
148°
SSE
05h
9 kts
max 20 kts
2.6 mm
2° C
-1
84%
894 hpa
159°
SSE
06h
8 kts
max 22 kts
1.31 mm
3° C
0
82%
894 hpa
170°
S
07h
8 kts
max 24 kts
4° C
1
80%
894 hpa
169°
S
08h
8 kts
max 24 kts
0.37 mm
4° C
1
83%
894 hpa
169°
S
09h
8 kts
max 25 kts
0.71 mm
4° C
1
86%
894 hpa
169°
S
10h
8 kts
max 25 kts
1.06 mm
4° C
1
89%
894 hpa
192°
SSW
11h
7 kts
max 21 kts
2.3 mm
4° C
1
92%
894 hpa
221°
SW
12h
6 kts
max 16 kts
3.53 mm
3° C
1
95%
894 hpa
244°
WSW
13h
6 kts
max 12 kts
4.77 mm
3° C
1
98%
894 hpa
258°
WSW
14h
4 kts
max 9 kts
4.19 mm
3° C
1
98%
893 hpa
274°
W
15h
3 kts
max 5 kts
3.6 mm
2° C
1
97%
893 hpa
288°
WNW
16h
1 kts
max 2 kts
3.02 mm
1° C
1
97%
893 hpa
318°
NW
17h
2 kts
max 2 kts
2.88 mm
1° C
1
97%
892 hpa
18°
NNE
18h
2 kts
max 3 kts
2.74 mm
1° C
1
98%
891 hpa
48°
NE
19h
2 kts
max 3 kts
2.6 mm
1° C
0
98%
891 hpa
50°
NE
20h
2 kts
max 3 kts
3.45 mm
1° C
1
98%
890 hpa
52°
NE
21h
2 kts
max 2 kts
4.29 mm
1° C
1
98%
889 hpa
54°
NE
22h
1 kts
max 2 kts
5.14 mm
1° C
1
98%
888 hpa
24°
NNE
23h
2 kts
max 4 kts
5.04 mm
1° C
0
98%
888 hpa
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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.