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Boston Harbor Island State Park, MA Weather Forecast
Boston Harbor Island State Park, MA Weather Forecast Dated: 751 PM Thu Mar 12 2026 (Boston Harbor Island State Park Time)
Thu, 12th Lo: 0°C33°F Hi: 14°C57°F |
Rain showers Thursday, temperatures as high as 57°F14°C, low temperature around 33°F0°C, probability of precipitation 88%, wind out of the W 18 mph28 km/h. Barometric pressure 29.65 in1004 mb, visibility 5 mi8 km, humidity 87%. |
Fri, 13th Lo: -1°C30°F Hi: 6°C42°F |
Cloudy Friday, temperatures as high as 42°F6°C, low temperature around 30°F-1°C, wind out of the WSW 17 mph28 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 65%. |
Sat, 14th Lo: 1°C34°F Hi: 7°C44°F |
Sunny Saturday, temperatures as high as 44°F7°C, low temperature around 34°F1°C, wind out of the W 22 mph35 km/h. Barometric pressure 29.85 in1011 mb, visibility 6 mi10 km, humidity 68%. |
| Sun, 15th Lo: -1°C30°F Hi: 3°C37°F |
Sunny Sunday, temperatures as high as 37°F3°C, low temperature around 30°F-1°C, wind out of the S 14 mph22 km/h. Barometric pressure 30.42 in1030 mb, visibility 6 mi10 km, humidity 67%. |
| Mon, 16th Lo: 3°C38°F Hi: 14°C57°F |
Rain showers Monday, temperatures as high as 57°F14°C, low temperature around 38°F3°C, chance of rain 89%, wind out of the S 28 mph44 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi9 km, humidity 93%. |
| Tue, 17th Lo: -1°C30°F Hi: 10°C50°F |
Rain Tuesday, temperatures as high as 50°F10°C, low temperature around 30°F-1°C, chance of rain 79%, wind out of the WSW 31 mph49 km/h. Barometric pressure 29.65 in1004 mb, visibility 5 mi8 km, humidity 72%. |
| Wed, 18th Lo: -2°C28°F Hi: 2°C35°F |
Sunny Wednesday, temperatures as high as 35°F2°C, low temperature around 28°F-2°C, wind out of the SW 13 mph22 km/h. Barometric pressure 30.45 in1031 mb, visibility 6 mi10 km, humidity 40%. |
| Thu, 19th Lo: -0°C32°F Hi: 4°C39°F |
Cloudy Thursday, temperatures as high as 39°F4°C, low temperature around 32°F-0°C, wind out of the E 10 mph15 km/h. Barometric pressure 30.21 in1023 mb, visibility 6 mi10 km, humidity 70%. |
Fri, 20th Lo: 1°C34°F Hi: 11°C51°F |
Partly Cloudy Friday, temperatures as high as 51°F11°C, low temperature around 34°F1°C, wind out of the WSW 13 mph21 km/h. Barometric pressure 29.77 in1008 mb, visibility 6 mi10 km, humidity 70%. |
Sat, 21st Lo: -2°C29°F Hi: 3°C38°F |
Chance of showers Saturday, temperatures as high as 38°F3°C, low temperature around 29°F-2°C, probability of precipitation 79%, wind out of the WNW 21 mph34 km/h. Barometric pressure 29.71 in1006 mb, visibility 6 mi10 km, humidity 55%. |
| Sun, 22nd Lo: -4°C26°F Hi: 3°C37°F |
Partly Cloudy Sunday, temperatures as high as 37°F3°C, low temperature around 26°F-4°C, wind out of the WNW 16 mph26 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 41%. |
| Mon, 23rd Lo: -3°C27°F Hi: 3°C37°F |
Partly Cloudy Monday, temperatures as high as 37°F3°C, low temperature around 27°F-3°C, wind out of the S 11 mph18 km/h. Barometric pressure 30.15 in1021 mb, visibility 6 mi10 km, humidity 41%. |
Tue, 24th Lo: -1°C31°F Hi: 1°C34°F |
Ice pellets Tuesday, temperatures as high as 34°F1°C, low temperature around 31°F-1°C, probability of precipitation 81%, wind out of the E 15 mph24 km/h. Barometric pressure 29.91 in1013 mb, visibility 4 mi6 km, humidity 84%. |
| Wed, 25th Lo: -4°C25°F Hi: -0°C31°F |
Light freezing rain Wednesday, temperatures as high as 31°F-0°C, low temperature around 25°F-4°C, probability of precipitation 70%, wind out of the WNW 14 mph22 km/h. Barometric pressure 30.3 in1026 mb, visibility 6 mi10 km, humidity 80%. |
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