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Mount Prospect IL Weather - Clear - 35°F
Clear
35°F
Updated 12:23 am
Feels Like 33°F
Humidity 56%
Wind N 0 mph
Barometer  30.25 in
Dew Point 21°F
Mount Prospect IL Weather - Clear - 2°C
Clear
2°C
Updated 12:23 am
Feels Like 1°C
Humidity 56%
Wind N 0 km/h
Barometer  102.4 kPa
Dew Point -6°C
Mount Prospect, IL Weather and Current Conditionsmount prospect il weather forecast

Mount Prospect, IL Weather Forecast

Mount Prospect Illinois WeatherMount Prospect, Illinois Weather Weather Forecast
14 day API Mount Prospect, IL weather forecast. Note. Our 7-day weather forecast for Mount Prospect, Illinois is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Mount Prospect, IL Weather Forecast Dated: 1223 AM Tue Mar 03 2026 (Mount Prospect Time)
Tue, 3rd
Mount Prospect IL Weather  - Tuesday, Mar 3, 2026 - Overcast
Lo: -2°C28°F
Hi: 4°C38°F
Overcast Tuesday, temperatures as high as 38°F4°C, low temperature around 28°F-2°C, wind out of the E 5 mph9 km/h. Barometric pressure 30.18 in1022 mb, visibility 6 mi10 km, humidity 84%, uv index 0.
Wed, 4th
Mount Prospect IL Weather  - Wednesday, Mar 4, 2026 - Patchy Rain Nearby
Lo: 0°C33°F
Hi: 3°C37°F
Patchy rain nearby Wednesday, temperatures as high as 37°F3°C, low temperature around 33°F0°C, chance of rain 80%, wind out of the ENE 7 mph12 km/h. Barometric pressure 30.18 in1022 mb, visibility 4 mi6 km, humidity 95%.
Thu, 5th
Mount Prospect IL Weather  - Thursday, Mar 5, 2026 - Patchy Rain Nearby
Lo: 2°C35°F
Hi: 5°C41°F
Patchy rain nearby Thursday, temperatures as high as 41°F5°C, low temperature around 35°F2°C, chance of rain 81%, wind out of the NE 8 mph13 km/h. Barometric pressure 30.09 in1019 mb, visibility 3 mi5 km, humidity 94%.
Fri, 6th
Mount Prospect IL Weather  - Friday, Mar 6, 2026 - Patchy Rain Nearby
Lo: 3°C38°F
Hi: 12°C54°F
Patchy rain nearby Friday, temperatures as high as 54°F12°C, low temperature around 38°F3°C, chance of rain 88%, wind out of the SE 15 mph24 km/h. Barometric pressure 30 in1016 mb, visibility 3 mi5 km, humidity 97%.
Sat, 7th
Mount Prospect IL Weather  - Saturday, Mar 7, 2026 - Patchy Rain Nearby
Lo: 7°C45°F
Hi: 17°C63°F
Patchy rain nearby Saturday, temperatures as high as 63°F17°C, low temperature around 45°F7°C, chance of rain 81%, wind out of the WSW 18 mph29 km/h. Barometric pressure 29.85 in1011 mb, visibility 6 mi10 km, humidity 78%.
Sun, 8th
Mount Prospect IL Weather  - Sunday, Mar 8, 2026 - Sunny
Lo: 4°C39°F
Hi: 15°C59°F
Sunny Sunday, temperatures as high as 59°F15°C, low temperature around 39°F4°C, wind out of the SW 13 mph21 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 56%, uv index 3.
Mon, 9th
Mount Prospect IL Weather  - Monday, Mar 9, 2026 - Partly Cloudy
Lo: 9°C47°F
Hi: 12°C53°F
Partly Cloudy Monday, temperatures as high as 53°F12°C, low temperature around 47°F9°C, wind out of the W 12 mph20 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 48%, uv index 4.
Tue, 10th
Mount Prospect IL Weather  - Tuesday, Mar 10, 2026 - Patchy Rain Nearby
Lo: 6°C43°F
Hi: 20°C68°F
Patchy rain nearby Tuesday, temperatures as high as 68°F20°C, low temperature around 43°F6°C, chance of rain 88%, wind out of the S 23 mph37 km/h. Barometric pressure 29.74 in1007 mb, visibility 6 mi9 km, humidity 69%.
Wed, 11th
Mount Prospect IL Weather  - Wednesday, Mar 11, 2026 - Patchy Rain Nearby
Lo: 3°C38°F
Hi: 16°C61°F
Patchy rain nearby Wednesday, temperatures as high as 61°F16°C, low temperature around 38°F3°C, chance of rain 84%, wind out of the WNW 21 mph35 km/h. Barometric pressure 29.62 in1003 mb, visibility 6 mi9 km, humidity 70%.
Thu, 12th
Mount Prospect IL Weather  - Thursday, Mar 12, 2026 - Sunny
Lo: 0°C32°F
Hi: 5°C41°F
Sunny Thursday, temperatures as high as 41°F5°C, low temperature around 32°F0°C, wind out of the WSW 10 mph16 km/h. Barometric pressure 30.15 in1021 mb, visibility 6 mi10 km, humidity 47%, uv index 2.
Fri, 13th
Mount Prospect IL Weather  - Friday, Mar 13, 2026 - Sunny
Lo: 2°C35°F
Hi: 14°C57°F
Sunny Friday, temperatures as high as 57°F14°C, low temperature around 35°F2°C, wind out of the SSE 17 mph28 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 61%, uv index 3.
Sat, 14th
Mount Prospect IL Weather  - Saturday, Mar 14, 2026 - Patchy Rain Nearby
Lo: 1°C34°F
Hi: 6°C43°F
Patchy rain nearby Saturday, temperatures as high as 43°F6°C, low temperature around 34°F1°C, chance of rain 73%, wind out of the WSW 18 mph28 km/h. Barometric pressure 30.33 in1027 mb, visibility 6 mi10 km, humidity 47%.
Sun, 15th
Mount Prospect IL Weather  - Sunday, Mar 15, 2026 - Heavy Snow
Lo: -0°C32°F
Hi: 0°C32°F
Heavy snow Sunday, temperatures as high as 32°F0°C, low temperature around 32°F-0°C, probability of precipitation 80%, wind out of the ENE 18 mph29 km/h. Barometric pressure 30.27 in1025 mb, visibility 3 mi5 km, humidity 84%.
Mon, 16th
Mount Prospect IL Weather  - Monday, Mar 16, 2026 - Light Snow Showers
Lo: -1°C30°F
Hi: 1°C34°F
Light snow showers Monday, temperatures as high as 34°F1°C, low temperature around 30°F-1°C, probability of precipitation 78%, wind out of the S 12 mph20 km/h. Barometric pressure 30 in1016 mb, visibility 5 mi8 km, humidity 94%.

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