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St Helena Fire Dept, CA Weather Forecast
St Helena Fire Dept, CA Weather Forecast Dated: 911 AM Thu Aug 20 2026 (St Helena Fire Dept Time)
Thu, 20th Lo: 12°C54°F Hi: 32°C89°F |
Overcast Thursday, temperatures as high as 89°F32°C, low temperature around 54°F12°C, chance of rain 10%, wind out of the WSW 6 mph10 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 53%. |
Fri, 21st Lo: 16°C61°F Hi: 33°C91°F |
Sunny Friday, temperatures as high as 91°F33°C, low temperature around 61°F16°C, chance of rain 4%, wind out of the WSW 9 mph15 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 42%. |
| Sat, 22nd Lo: 15°C58°F Hi: 34°C94°F |
Sunny Saturday, temperatures as high as 94°F34°C, low temperature around 58°F15°C, chance of rain 1%, wind out of the WSW 10 mph17 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 39%. |
| Sun, 23rd Lo: 17°C62°F Hi: 35°C95°F |
Sunny Sunday, temperatures as high as 95°F35°C, low temperature around 62°F17°C, chance of rain 2%, wind out of the WSW 10 mph16 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 34%. |
| Mon, 24th Lo: 14°C58°F Hi: 31°C88°F |
Sunny Monday, temperatures as high as 88°F31°C, low temperature around 58°F14°C, chance of rain 4%, wind out of the WSW 11 mph17 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 50%. |
| Tue, 25th Lo: 12°C53°F Hi: 32°C89°F |
Overcast Tuesday, temperatures as high as 89°F32°C, low temperature around 53°F12°C, chance of rain 7%, wind out of the WSW 7 mph12 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 54%. |
| Wed, 26th Lo: 14°C57°F Hi: 34°C93°F |
Overcast Wednesday, temperatures as high as 93°F34°C, low temperature around 57°F14°C, chance of rain 7%, wind out of the WSW 8 mph12 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 41%. |
| Thu, 27th Lo: 12°C54°F Hi: 33°C91°F |
Sunny Thursday, temperatures as high as 91°F33°C, low temperature around 54°F12°C, chance of rain 4%, wind out of the SW 8 mph13 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 49%. |
| Fri, 28th Lo: 12°C54°F Hi: 32°C89°F |
Sunny Friday, temperatures as high as 89°F32°C, low temperature around 54°F12°C, chance of rain 2%, wind out of the SW 9 mph14 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 59%. |
| Sat, 29th Lo: 11°C52°F Hi: 31°C88°F |
Sunny Saturday, temperatures as high as 88°F31°C, low temperature around 52°F11°C, chance of rain 3%, wind out of the SW 8 mph13 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 59%. |
| Sun, 30th Lo: 10°C50°F Hi: 27°C81°F |
Sunny Sunday, temperatures as high as 81°F27°C, low temperature around 50°F10°C, chance of rain 6%, wind out of the WSW 9 mph14 km/h. Barometric pressure 29.91 in1013 mb, visibility 4 mi7 km, humidity 68%. |
| Mon, 31st Lo: 9°C49°F Hi: 27°C81°F |
Overcast Monday, temperatures as high as 81°F27°C, low temperature around 49°F9°C, chance of rain 7%, wind out of the WSW 9 mph15 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi9 km, humidity 61%. |
| Tue, 1st Lo: 9°C49°F Hi: 29°C84°F |
Sunny Tuesday, temperatures as high as 84°F29°C, low temperature around 49°F9°C, chance of rain 2%, wind out of the W 13 mph21 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 49%. |
| Wed, 2nd Lo: 12°C53°F Hi: 25°C78°F |
Sunny Wednesday, temperatures as high as 78°F25°C, low temperature around 53°F12°C, chance of rain 6%, wind out of the WSW 11 mph18 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi9 km, humidity 71%. |
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