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Mount Si High School, WA Weather Forecast
Mount Si High School, WA Weather Forecast Dated: 405 AM Thu Aug 27 2026 (Mount Si High School Time)
Thu, 27th Lo: 14°C57°F Hi: 22°C72°F |
Chance of showers Thursday, temperatures as high as 72°F22°C, low temperature around 57°F14°C, chance of rain 11%, wind out of the WSW 4 mph6 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 54%. |
| Fri, 28th Lo: 12°C53°F Hi: 18°C64°F |
Chance of showers Friday, temperatures as high as 64°F18°C, low temperature around 53°F12°C, chance of rain 24%, wind out of the WNW 4 mph6 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 77%. |
| Sat, 29th Lo: 10°C49°F Hi: 16°C61°F |
Chance of showers Saturday, temperatures as high as 61°F16°C, low temperature around 49°F10°C, chance of rain 37%, wind out of the WSW 3 mph5 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 87%. |
Sun, 30th Lo: 9°C48°F Hi: 19°C67°F |
Overcast Sunday, temperatures as high as 67°F19°C, low temperature around 48°F9°C, chance of rain 11%, wind out of the WNW 5 mph8 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 55%. |
| Mon, 31st Lo: 11°C51°F Hi: 15°C58°F |
Light rain shower Monday, temperatures as high as 58°F15°C, low temperature around 51°F11°C, chance of rain 47%, wind out of the WSW 3 mph5 km/h. Barometric pressure 29.85 in1011 mb, visibility 6 mi10 km, humidity 77%. |
| Tue, 1st Lo: 10°C49°F Hi: 16°C60°F |
Chance of showers Tuesday, temperatures as high as 60°F16°C, low temperature around 49°F10°C, chance of rain 9%, wind out of the WSW 5 mph8 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 53%. |
| Wed, 2nd Lo: 9°C49°F Hi: 13°C55°F |
Chance of showers Wednesday, temperatures as high as 55°F13°C, low temperature around 49°F9°C, chance of rain 17%, wind out of the NW 3 mph5 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 66%. |
| Thu, 3rd Lo: 8°C46°F Hi: 10°C50°F |
Light rain shower Thursday, temperatures as high as 50°F10°C, low temperature around 46°F8°C, chance of rain 68%, wind out of the SE 5 mph8 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 97%. |
Fri, 4th Lo: 9°C48°F Hi: 18°C64°F |
Partly Cloudy Friday, temperatures as high as 64°F18°C, low temperature around 48°F9°C, chance of rain 9%, wind out of the NW 6 mph9 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 61%. |
Sat, 5th Lo: 10°C49°F Hi: 22°C72°F |
Sunny Saturday, temperatures as high as 72°F22°C, low temperature around 49°F10°C, chance of rain 1%, wind out of the NW 5 mph9 km/h. Barometric pressure 30.06 in1018 mb, visibility 6 mi10 km, humidity 38%. |
| Sun, 6th Lo: 13°C56°F Hi: 25°C77°F |
Overcast Sunday, temperatures as high as 77°F25°C, low temperature around 56°F13°C, chance of rain 2%, wind out of the NW 5 mph8 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 30%. |
| Mon, 7th Lo: 16°C61°F Hi: 30°C85°F |
Sunny Monday, temperatures as high as 85°F30°C, low temperature around 61°F16°C, wind out of the WNW 3 mph5 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 28%. |
| Tue, 8th Lo: 17°C63°F Hi: 29°C85°F |
Sunny Tuesday, temperatures as high as 85°F29°C, low temperature around 63°F17°C, chance of rain 1%, wind out of the WNW 5 mph8 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 38%. |
| Wed, 9th Lo: 16°C60°F Hi: 25°C78°F |
Sunny Wednesday, temperatures as high as 78°F25°C, low temperature around 60°F16°C, chance of rain 6%, wind out of the W 4 mph7 km/h. Barometric pressure 30.12 in1020 mb, visibility 6 mi10 km, humidity 46%. |
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