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Island Lake, SD 14 Day Weather
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Island Lake, SD Weather Forecast
Island Lake, SD Weather Forecast Dated: 733 PM Thu Aug 20 2026 (Island Lake Time)
Thu, 20th Lo: 16°C61°F Hi: 30°C86°F |
Sunny Thursday, temperatures as high as 86°F30°C, low temperature around 61°F16°C, chance of rain 5%, wind out of the SSW 17 mph27 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi9 km, humidity 70%. |
| Fri, 21st Lo: 20°C67°F Hi: 34°C92°F |
Sunny Friday, temperatures as high as 92°F34°C, low temperature around 67°F20°C, chance of rain 1%, wind out of the NNW 10 mph15 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 41%. |
| Sat, 22nd Lo: 20°C68°F Hi: 33°C91°F |
Sunny Saturday, temperatures as high as 91°F33°C, low temperature around 68°F20°C, chance of rain 3%, wind out of the E 13 mph21 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 43%. |
Sun, 23rd Lo: 17°C63°F Hi: 28°C83°F |
Overcast Sunday, temperatures as high as 83°F28°C, low temperature around 63°F17°C, chance of rain 37%, wind out of the SE 15 mph25 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 55%. |
| Mon, 24th Lo: 19°C66°F Hi: 31°C88°F |
Sunny Monday, temperatures as high as 88°F31°C, low temperature around 66°F19°C, chance of rain 36%, wind out of the SSE 15 mph24 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi9 km, humidity 66%. |
| Tue, 25th Lo: 22°C71°F Hi: 33°C91°F |
Sunny Tuesday, temperatures as high as 91°F33°C, low temperature around 71°F22°C, chance of rain 57%, wind out of the W 13 mph21 km/h. Barometric pressure 29.88 in1012 mb, visibility 5 mi8 km, humidity 56%. |
| Wed, 26th Lo: 19°C67°F Hi: 29°C84°F |
Sunny Wednesday, temperatures as high as 84°F29°C, low temperature around 67°F19°C, chance of rain 1%, wind out of the NNW 14 mph23 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 43%. |
| Thu, 27th Lo: 18°C65°F Hi: 30°C87°F |
Sunny Thursday, temperatures as high as 87°F30°C, low temperature around 65°F18°C, chance of rain 2%, wind out of the ESE 10 mph16 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 50%. |
Fri, 28th Lo: 19°C67°F Hi: 28°C83°F |
Chance of showers Friday, temperatures as high as 83°F28°C, low temperature around 67°F19°C, chance of rain 57%, wind out of the SSE 21 mph33 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 62%. |
| Sat, 29th Lo: 19°C66°F Hi: 33°C91°F |
Chance of showers Saturday, temperatures as high as 91°F33°C, low temperature around 66°F19°C, chance of rain 57%, wind out of the SE 21 mph33 km/h. Barometric pressure 29.8 in1009 mb, visibility 6 mi10 km, humidity 62%. |
| Sun, 30th Lo: 20°C69°F Hi: 38°C101°F |
Sunny Sunday, temperatures as high as 101°F38°C, low temperature around 69°F20°C, chance of rain 5%, wind out of the ESE 10 mph16 km/h. Barometric pressure 29.74 in1007 mb, visibility 6 mi9 km, humidity 53%. |
Mon, 31st Lo: 23°C74°F Hi: 39°C101°F |
Cloudy Monday, temperatures as high as 101°F39°C, low temperature around 74°F23°C, chance of rain 17%, wind out of the SE 18 mph29 km/h. Barometric pressure 29.65 in1004 mb, visibility 6 mi10 km, humidity 49%. |
| Tue, 1st Lo: 20°C68°F Hi: 29°C85°F |
Sunny Tuesday, temperatures as high as 85°F29°C, low temperature around 68°F20°C, chance of rain 2%, wind out of the NW 20 mph33 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 39%. |
| Wed, 2nd Lo: 15°C60°F Hi: 20°C68°F |
Light rain shower Wednesday, temperatures as high as 68°F20°C, low temperature around 60°F15°C, chance of rain 88%, wind out of the ENE 13 mph21 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 91%. |
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