Hazardous Weather Conditions
Current conditions at
Illinois Valley Regional Airport (KVYS)
Lat: 41.35°NLon: 89.15°WElev: 650ft.
Light Rain
73°F
23°C
| Humidity | 100% |
| Wind Speed | SE 3 mph |
| Barometer | 30.07 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Last update | 15 Aug 5:38 am CDT |
Extended Forecast for
Ottawa IL
Flood Watch August 15, 05:46am until August 15, 10:00am
NOW until 10:00am Sat

Flood Watch
Overnight

Low: 72 °F
Showers
Saturday
High: 83 °F
Showers then
Chance
ShowersSaturday Night
Low: 73 °F
Slight Chance
Showers then
Showers
LikelySunday
High: 84 °F
Chance
T-storms then
Partly SunnySunday Night

Low: 66 °F
Partly Cloudy
Monday

High: 82 °F
Sunny
Monday Night

Low: 64 °F
Mostly Clear
Tuesday

High: 83 °F
Mostly Sunny
Detailed Forecast
Overnight
Showers and possibly a thunderstorm. Low around 72. East southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm. High near 83. South southeast wind 5 to 10 mph becoming west southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
A slight chance of showers before midnight, then a chance of showers and thunderstorms between midnight and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 73. South southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 40 percent chance of showers and thunderstorms, mainly before 8am. Mostly cloudy, with a high near 84. West northwest wind around 10 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 66. North northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 69.
Wednesday
A chance of showers before 1pm. Mostly cloudy, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 76.
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
5:33 am CDT Aug 15, 2026
5am CDT Aug 15, 2026-6pm CDT Aug 21, 2026



