South Ottawa, Illinois Weather
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Weather Forecast for South Ottawa, Illinois : LaSalle County
Issued: 4:41 am CDT Sep 16, 2025 Latitude: 41.3317004 Longitude: -88.8370212 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Sunny on Today Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday 20% chance of on Friday 20% chance of on Saturday 20% chance of on Sunday Partly Sunny on Monday
High: 86°F Low: 56°F High: 86°F High: 88°F High: 84°F High: 81°F High: 80°F High: 82°F
Low: 58°F Low: 62°F Low: 62°F Low: 62°F Low: 63°F  
Sunny Mostly Clear Sunny Sunny Partly Sunny Partly Sunny Partly Sunny Partly Sunny
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Current Conditions at
PERU - (KVYS)
61°
Clear
Mist
as of 4:55 AM CDST
Rel. Humidity: 93%
Dew Point: 59°F
Visibility: 5 Miles
Pressure: 30.19 in.
Flight Rule: MVFR
Wind Data
5 MPH
040° Northeast
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
61°
Clear
as of 4:55 AM CDST
Rel. Humidity: 100%
Dew Point: 61°F
Visibility: 7 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
3 MPH
050° Northeast
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
57°
Clear
as of 4:55 AM CDST
Rel. Humidity: 93%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
6 MPH
080° East
Cloud Level(s): Clear
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
59°
Clear
as of 4:55 AM CDST
Rel. Humidity: 87%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 86. East northeast wind 5 to 10 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 56. East wind around 5 mph becoming calm in the evening.
Sunny on Wednesday Wednesday... Sunny, with a high near 86. Calm wind becoming east northeast around 5 mph.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 58. East northeast wind around 5 mph becoming calm.
Sunny on Thursday Thursday... Sunny, with a high near 88. Calm wind becoming south southeast around 5 mph in the afternoon.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 62.
20% chance of Friday Friday... A 20 percent chance of showers. Partly sunny, with a high near 84.
20% chance of rain Friday Night Friday Night... A chance of showers. Mostly cloudy, with a low around 62.
20% chance of Saturday Saturday... A chance of showers. Partly sunny, with a high near 81.
20% chance of rain Saturday Night Saturday Night... A chance of showers before 1am. Mostly cloudy, with a low around 62.
20% chance of Sunday Sunday... A chance of showers. Partly sunny, with a high near 80.
20% chance of rain Sunday Night Sunday Night... A chance of showers. Mostly cloudy, with a low around 63.
Partly Sunny on Monday Monday... Partly sunny, with a high near 82.
Current Radar Image


Sun Almanac for South Ottawa, Illinois
Sunrise: 06:37 AM
Sunset: 7:03 PM
Civil Sunrise:06:10 AM
Civil Sunset: 7:30 PM
Nautical Sunrise: 05:37 AM
Nautical Sunset: 8:03 PM
Astro Sunrise: 05:04 AM
Astro Sunset: 8:36 PM
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