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Marietta, IL Weather Forecast
Marietta, IL Weather Forecast Dated: 1219 AM Tue Mar 03 2026 (Marietta Time)
Tue, 3rd Lo: 3°C38°F Hi: 7°C45°F |
Patchy rain nearby Tuesday, temperatures as high as 45°F7°C, low temperature around 38°F3°C, chance of rain 89%, wind out of the E 9 mph15 km/h. Barometric pressure 30.15 in1021 mb, visibility 5 mi8 km, humidity 91%. |
Wed, 4th Lo: 3°C37°F Hi: 5°C41°F |
Moderate rain Wednesday, temperatures as high as 41°F5°C, low temperature around 37°F3°C, chance of rain 86%, wind out of the ENE 10 mph17 km/h. Barometric pressure 30.12 in1020 mb, visibility 4 mi7 km, humidity 96%. |
Thu, 5th Lo: 2°C36°F Hi: 7°C45°F |
Overcast Thursday, temperatures as high as 45°F7°C, low temperature around 36°F2°C, wind out of the WSW 8 mph13 km/h. Barometric pressure 30.06 in1018 mb, visibility 5 mi8 km, humidity 93%, uv index 0. |
| Fri, 6th Lo: 6°C43°F Hi: 23°C74°F |
Patchy rain nearby Friday, temperatures as high as 74°F23°C, low temperature around 43°F6°C, chance of rain 74%, wind out of the SSE 21 mph33 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 84%. |
| Sat, 7th Lo: 8°C46°F Hi: 17°C63°F |
Moderate rain Saturday, temperatures as high as 63°F17°C, low temperature around 46°F8°C, chance of rain 89%, wind out of the WSW 23 mph36 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 74%. |
Sun, 8th Lo: 4°C39°F Hi: 17°C63°F |
Sunny Sunday, temperatures as high as 63°F17°C, low temperature around 39°F4°C, wind out of the SSW 15 mph25 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 61%, uv index 4. |
| Mon, 9th Lo: 9°C49°F Hi: 16°C60°F |
Sunny Monday, temperatures as high as 60°F16°C, low temperature around 49°F9°C, wind out of the WSW 15 mph23 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 50%, uv index 4. |
| Tue, 10th Lo: 11°C52°F Hi: 23°C74°F |
Patchy rain nearby Tuesday, temperatures as high as 74°F23°C, low temperature around 52°F11°C, chance of rain 80%, wind out of the SSW 28 mph45 km/h. Barometric pressure 29.71 in1006 mb, visibility 6 mi9 km, humidity 70%. |
| Wed, 11th Lo: 4°C40°F Hi: 18°C65°F |
Patchy rain nearby Wednesday, temperatures as high as 65°F18°C, low temperature around 40°F4°C, chance of rain 85%, wind out of the WNW 26 mph42 km/h. Barometric pressure 29.68 in1005 mb, visibility 6 mi10 km, humidity 71%. |
| Thu, 12th Lo: -1°C30°F Hi: 8°C46°F |
Sunny Thursday, temperatures as high as 46°F8°C, low temperature around 30°F-1°C, wind out of the S 14 mph23 km/h. Barometric pressure 30.12 in1020 mb, visibility 6 mi10 km, humidity 53%, uv index 2. |
| Fri, 13th Lo: 3°C37°F Hi: 17°C62°F |
Patchy rain nearby Friday, temperatures as high as 62°F17°C, low temperature around 37°F3°C, chance of rain 67%, wind out of the S 24 mph38 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi9 km, humidity 65%. |
| Sat, 14th Lo: 1°C33°F Hi: 7°C45°F |
Patchy rain nearby Saturday, temperatures as high as 45°F7°C, low temperature around 33°F1°C, chance of rain 87%, wind out of the S 16 mph26 km/h. Barometric pressure 30.36 in1028 mb, visibility 6 mi10 km, humidity 55%. |
Sun, 15th Lo: -0°C31°F Hi: 1°C33°F |
Heavy snow Sunday, temperatures as high as 33°F1°C, low temperature around 31°F-0°C, probability of precipitation 77%, wind out of the ENE 18 mph29 km/h. Barometric pressure 30.15 in1021 mb, visibility 4 mi6 km, humidity 96%. |
Mon, 16th Lo: -1°C30°F Hi: 3°C38°F |
Light freezing rain Monday, temperatures as high as 38°F3°C, low temperature around 30°F-1°C, probability of precipitation 64%, wind out of the W 15 mph25 km/h. Barometric pressure 30.09 in1019 mb, visibility 5 mi8 km, humidity 88%. |
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