Cottage Grove, Illinois Weather
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Weather Forecast for Cottage Grove, Illinois : Saline County
Issued: 12:21 pm CDT Jun 2, 2025 Latitude: 37.7481028 Longitude: -88.4106015 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Sunny on This Afternoon Cloudy on Tonight Sunny on Tuesday 40% chance of thunderstorms on Wednesday 80% chance of thunderstorms on Thursday 20% chance of thunderstorms on Friday 20% chance of thunderstorms on Saturday Thunderstorms on Sunday
High: 86°F Low: 66°F High: 89°F High: 87°F High: 84°F High: 83°F High: 83°F High: 81°F
Low: 70°F Low: 68°F Low: 68°F Low: 66°F Low: 65°F  
Mostly Sunny Cloudy Sunny Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
HARRISBURG-RALEIGH - (KHSB)
81°
Clear
as of 12:35 PM CDST
Rel. Humidity: 54%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
8 MPH
130° Southeast
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
82°
Clear
as of 12:35 PM CDST
Rel. Humidity: 54%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 86. Southeast wind around 5 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 66. Southeast wind 3 to 5 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 89. South wind 6 to 14 mph, with gusts as high as 21 mph.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 70. South wind 7 to 9 mph.
40% chance of thunderstorms Wednesday Wednesday... A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 87. South southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
60% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. South wind around 6 mph. Chance of precipitation is 60%.
80% chance of thunderstorms Thursday Thursday... Showers and possibly a thunderstorm. High near 84. South southwest wind 5 to 8 mph. Chance of precipitation is 80%.
20% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. South southwest wind 3 to 5 mph.
20% chance of thunderstorms Friday Friday... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83. Southwest wind 5 to 8 mph.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 66. West southwest wind 3 to 6 mph.
20% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Partly sunny, with a high near 83. North northwest wind 3 to 7 mph.
20% chance of thunderstorms Saturday Night Saturday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light and variable wind.
Thunderstorms on Sunday Sunday... Showers and thunderstorms likely. Mostly cloudy, with a high near 81. Light and variable wind becoming south 5 to 7 mph in the morning.
Current Radar Image


Sun Almanac for Cottage Grove, Illinois
Sunrise: 05:33 AM
Sunset: 8:11 PM
Civil Sunrise:05:02 AM
Civil Sunset: 8:41 PM
Nautical Sunrise: 04:24 AM
Nautical Sunset: 9:20 PM
Astro Sunrise: 03:41 AM
Astro Sunset: 10:03 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.