Hazardous Weather Conditions
Current conditions at
Illinois Valley Regional Airport (KVYS)
Lat: 41.35°NLon: 89.15°WElev: 650ft.
Fair
52°F
11°C
| Humidity | 94% |
| Wind Speed | Calm |
| Barometer | 30.25 in |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Last update | 14 Sep 3:59 am CDT |
Extended Forecast for
Ottawa IL
Today
High: 76 °F
Patchy Fog
then Partly
SunnyTonight
Low: 69 °F
Partly Cloudy
then Chance
ShowersTuesday

High: 83 °F
Showers
LikelyTuesday Night
Low: 64 °F
Chance
T-storms then
Showers
LikelyWednesday

High: 79 °F
Showers
LikelyWednesday Night

Low: 69 °F
Chance
ShowersThursday

High: 83 °F
Showers
LikelyThursday Night
Low: 66 °F
Mostly Cloudy
then Chance
ShowersFriday

High: 82 °F
Chance
Showers
Detailed Forecast
Today
Patchy fog before 9am. Otherwise, increasing clouds, with a high near 76. Light and variable wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 69. Southeast wind around 15 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 83. South southwest wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. East northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 50%.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Thursday Night
A chance of showers after 1am. Mostly cloudy, with a low around 66.
Friday
A chance of showers. Partly sunny, with a high near 82.
Friday Night
A chance of showers. Partly cloudy, with a low around 67.
Saturday
A chance of showers. Partly sunny, with a high near 80.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 63.
Sunday
A chance of showers. Mostly cloudy, with a high near 77.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Ottawa IL
41.35°N 88.85°W
41.35°N 88.85°W
4:00 am CDT Sep 14, 2026
4am CDT Sep 14, 2026-6pm CDT Sep 20, 2026



