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Lyons South High School, IL Weather Forecast
Lyons South High School, IL Weather Forecast Dated: 135 AM Tue Aug 18 2026 (Lyons South High School Time)
Tue, 18th Lo: 18°C64°F Hi: 26°C79°F |
Sunny Tuesday, temperatures as high as 79°F26°C, low temperature around 64°F18°C, chance of rain 17%, wind out of the WSW 10 mph17 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 78%. |
Wed, 19th Lo: 19°C67°F Hi: 28°C82°F |
Chance of showers Wednesday, temperatures as high as 82°F28°C, low temperature around 67°F19°C, chance of rain 81%, wind out of the WSW 8 mph13 km/h. Barometric pressure 29.91 in1013 mb, visibility 5 mi8 km, humidity 80%. |
Thu, 20th Lo: 20°C69°F Hi: 29°C84°F |
Overcast Thursday, temperatures as high as 84°F29°C, low temperature around 69°F20°C, chance of rain 17%, wind out of the NNW 6 mph10 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 67%. |
| Fri, 21st Lo: 20°C68°F Hi: 27°C80°F |
Overcast Friday, temperatures as high as 80°F27°C, low temperature around 68°F20°C, chance of rain 14%, wind out of the WSW 9 mph15 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 73%. |
| Sat, 22nd Lo: 18°C65°F Hi: 27°C81°F |
Sunny Saturday, temperatures as high as 81°F27°C, low temperature around 65°F18°C, chance of rain 68%, wind out of the WSW 9 mph15 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 76%. |
| Sun, 23rd Lo: 19°C66°F Hi: 26°C78°F |
Sunny Sunday, temperatures as high as 78°F26°C, low temperature around 66°F19°C, chance of rain 6%, wind out of the NE 7 mph11 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 61%. |
| Mon, 24th Lo: 17°C62°F Hi: 25°C76°F |
Sunny Monday, temperatures as high as 76°F25°C, low temperature around 62°F17°C, chance of rain 11%, wind out of the S 8 mph12 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 70%. |
Tue, 25th Lo: 19°C66°F Hi: 25°C77°F |
Mist Tuesday, temperatures as high as 77°F25°C, low temperature around 66°F19°C, chance of rain 50%, wind out of the W 11 mph18 km/h. Barometric pressure 29.85 in1011 mb, visibility 5 mi8 km, humidity 79%. |
| Wed, 26th Lo: 14°C58°F Hi: 19°C67°F |
Overcast Wednesday, temperatures as high as 67°F19°C, low temperature around 58°F14°C, chance of rain 18%, wind out of the NNW 14 mph23 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 67%. |
| Thu, 27th Lo: 12°C53°F Hi: 19°C67°F |
Sunny Thursday, temperatures as high as 67°F19°C, low temperature around 53°F12°C, chance of rain 5%, wind out of the NNW 14 mph23 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 53%. |
| Fri, 28th Lo: 13°C55°F Hi: 22°C72°F |
Sunny Friday, temperatures as high as 72°F22°C, low temperature around 55°F13°C, chance of rain 2%, wind out of the WNW 9 mph14 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 52%. |
| Sat, 29th Lo: 15°C58°F Hi: 24°C75°F |
Sunny Saturday, temperatures as high as 75°F24°C, low temperature around 58°F15°C, chance of rain 6%, wind out of the SSW 8 mph12 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 61%. |
| Sun, 30th Lo: 14°C57°F Hi: 18°C65°F |
Light rain shower Sunday, temperatures as high as 65°F18°C, low temperature around 57°F14°C, chance of rain 89%, wind out of the SE 11 mph18 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 87%. |
| Mon, 31st Lo: 14°C57°F Hi: 19°C65°F |
Chance of showers Monday, temperatures as high as 65°F19°C, low temperature around 57°F14°C, chance of rain 89%, wind out of the ENE 11 mph18 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 88%. |
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