Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

61°F

16°C

Humidity 88%
Wind Speed E 6 mph
Barometer 30.27 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 25 Sep 2:20 am CDT
Extended Forecast for

Ottawa IL

  • Overnight

    Overnight: Occasional sprinkles.  Cloudy, with a low around 60. East wind around 5 mph.

    Low: 60 °F

    Sprinkles

  • Friday

    Friday: Occasional sprinkles with a slight chance of showers before 10am, then occasional sprinkles between 10am and 11am.  Mostly cloudy, with a high near 70. East wind around 5 mph, with gusts as high as 10 mph.  Chance of precipitation is 20%.

    High: 70 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. East wind around 5 mph.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71. East southeast wind around 5 mph, with gusts as high as 10 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. East wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Occasional sprinkles. Cloudy, with a low around 60. East wind around 5 mph.
Friday
Occasional sprinkles with a slight chance of showers before 10am, then occasional sprinkles between 10am and 11am. Mostly cloudy, with a high near 70. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 52. East wind around 5 mph.
Saturday
Mostly sunny, with a high near 71. East southeast wind around 5 mph, with gusts as high as 10 mph.
Saturday Night
Partly cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 55.
Tuesday
A chance of showers after 1pm. Partly sunny, with a high near 74.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers. Mostly cloudy, with a high near 74.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62.
Thursday
A chance of showers. Partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Ottawa IL
 41.35°N 88.82°W
2:00 am CDT Sep 25, 2026
2am CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database