Friday Harbor SPB (FBS) 15 Day Weather Forecast, Friday Harbor United States
Current weather conditions and 15 day weather forecast for Friday Harbor SPB in Friday Harbor, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at FBS
| 20 August 2025 Wed 16.2 ° C ( 61.2°F )  Sunny |
Feels Like : 16.2 ° C / 61.2°F Humidity : % 72 Pressure : 1026 mb Wind Speed : 4 kmph / 2.5 miles from SSW 
Visibility : 24 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15-day weather forecast for Friday Harbor SPB, Friday Harbor, United States
| Date | |
|---|---|
| 20 August 2025 Wed | |
| Weather forecast |  Partly Cloudy |
| Low temperature | 10.7 ° C |
| High temperature | 15.2 ° C |
| Average Temperature | 12.8 ° C |
| Humidity | % 92 |
| Wind | 14.8 km/h |
| Chance of rain | 0% |
| 21 August 2025 Thu | |
| Weather forecast | Partly Cloudy |
| Low temperature | 11.5 ° C |
| High temperature | 14.3 ° C |
| Average Temperature | 12.7 ° C |
| Humidity | % 90 |
| Wind | 9.4 km/h |
| Chance of rain | 0% |
| 22 August 2025 Fri | |
| Weather forecast | Sunny |
| Low temperature | 13 ° C |
| High temperature | 20.9 ° C |
| Average Temperature | 16.4 ° C |
| Humidity | % 72 |
| Wind | 9.4 km/h |
| Chance of rain | 0% |
| 23 August 2025 Sat | |
| Weather forecast | Sunny |
| Low temperature | 15.4 ° C |
| High temperature | 21.9 ° C |
| Average Temperature | 18 ° C |
| Humidity | % 68 |
| Wind | 9 km/h |
| Chance of rain | 0% |
| 24 August 2025 Sun | |
| Weather forecast | Sunny |
| Low temperature | 14.5 ° C |
| High temperature | 22 ° C |
| Average Temperature | 18.1 ° C |
| Humidity | % 66 |
| Wind | 9.7 km/h |
| Chance of rain | 0% |
| 25 August 2025 Mon | |
| Weather forecast | Sunny |
| Low temperature | 14.2 ° C |
| High temperature | 20.5 ° C |
| Average Temperature | 17 ° C |
| Humidity | % 75 |
| Wind | 10.1 km/h |
| Chance of rain | 0% |
| 26 August 2025 Tue | |
| Weather forecast |  Patchy rain nearby |
| Low temperature | 14.3 ° C |
| High temperature | 19.5 ° C |
| Average Temperature | 16.6 ° C |
| Humidity | % 80 |
| Wind | 11.9 km/h |
| Chance of rain | 71% |
| 27 August 2025 Wed | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 13.6 ° C |
| High temperature | 20.1 ° C |
| Average Temperature | 16.3 ° C |
| Humidity | % 80 |
| Wind | 20.2 km/h |
| Chance of rain | 89% |
| 28 August 2025 Thu | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 12.4 ° C |
| High temperature | 18.1 ° C |
| Average Temperature | 15 ° C |
| Humidity | % 81 |
| Wind | 21.6 km/h |
| Chance of rain | 78% |
| 29 August 2025 Fri | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 12.3 ° C |
| High temperature | 17.3 ° C |
| Average Temperature | 14.4 ° C |
| Humidity | % 80 |
| Wind | 18.7 km/h |
| Chance of rain | 87% |
| 30 August 2025 Sat | |
| Weather forecast | Sunny |
| Low temperature | 11.1 ° C |
| High temperature | 16.9 ° C |
| Average Temperature | 13.9 ° C |
| Humidity | % 74 |
| Wind | 7.9 km/h |
| Chance of rain | 0% |
| 31 August 2025 Sun | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 11.4 ° C |
| High temperature | 14.9 ° C |
| Average Temperature | 13.4 ° C |
| Humidity | % 85 |
| Wind | 9.4 km/h |
| Chance of rain | 86% |
| 01 September 2025 Mon | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 10.7 ° C |
| High temperature | 14.9 ° C |
| Average Temperature | 12.6 ° C |
| Humidity | % 80 |
| Wind | 16.9 km/h |
| Chance of rain | 89% |
| 02 September 2025 Tue | |
| Weather forecast | Sunny |
| Low temperature | 9.9 ° C |
| High temperature | 14.5 ° C |
| Average Temperature | 12 ° C |
| Humidity | % 80 |
| Wind | 8.3 km/h |
| Chance of rain | 0% |
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 20 August 2025 Wed | Partly Cloudy |
10.7 ° C | 15.2 ° C | 12.8 ° C | % 92 | 14.8 km/h | 0% |
| 21 August 2025 Thu | Partly Cloudy |
11.5 ° C | 14.3 ° C | 12.7 ° C | % 90 | 9.4 km/h | 0% |
| 22 August 2025 Fri | Sunny |
13 ° C | 20.9 ° C | 16.4 ° C | % 72 | 9.4 km/h | 0% |
| 23 August 2025 Sat | Sunny |
15.4 ° C | 21.9 ° C | 18 ° C | % 68 | 9 km/h | 0% |
| 24 August 2025 Sun | Sunny |
14.5 ° C | 22 ° C | 18.1 ° C | % 66 | 9.7 km/h | 0% |
| 25 August 2025 Mon | Sunny |
14.2 ° C | 20.5 ° C | 17 ° C | % 75 | 10.1 km/h | 0% |
| 26 August 2025 Tue | Patchy rain nearby |
14.3 ° C | 19.5 ° C | 16.6 ° C | % 80 | 11.9 km/h | 71% |
| 27 August 2025 Wed | Patchy rain nearby |
13.6 ° C | 20.1 ° C | 16.3 ° C | % 80 | 20.2 km/h | 89% |
| 28 August 2025 Thu | Patchy rain nearby |
12.4 ° C | 18.1 ° C | 15 ° C | % 81 | 21.6 km/h | 78% |
| 29 August 2025 Fri | Patchy rain nearby |
12.3 ° C | 17.3 ° C | 14.4 ° C | % 80 | 18.7 km/h | 87% |
| 30 August 2025 Sat | Sunny |
11.1 ° C | 16.9 ° C | 13.9 ° C | % 74 | 7.9 km/h | 0% |
| 31 August 2025 Sun | Patchy rain nearby |
11.4 ° C | 14.9 ° C | 13.4 ° C | % 85 | 9.4 km/h | 86% |
| 01 September 2025 Mon | Patchy rain nearby |
10.7 ° C | 14.9 ° C | 12.6 ° C | % 80 | 16.9 km/h | 89% |
| 02 September 2025 Tue | Sunny |
9.9 ° C | 14.5 ° C | 12 ° C | % 80 | 8.3 km/h | 0% |
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