Heat Building and Strong to Severe Storms

A building ridge of high pressure will produce possible record heat and extremely humid conditions over the next several days. The summer heat wave is already present in the south Plains, will expand across the Mid-Atlantic/Northeast and then shift into the Desert Southwest. Meanwhile, a cold front may trigger strong to severe storms w/ heavy rain from the Great Lakes to the south-central Plains Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Thunderstorm in Vicinity

69°F

21°C

Humidity 94%
Wind Speed SE 7 mph
Barometer 29.85 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 18 Aug 1:55 am CDT
Extended Forecast for

Ottawa IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 4am.  Mostly cloudy, with a low around 70. South wind around 5 mph.

    Chance
    T-storms

    Low: 70 °F

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 11am.  Mostly cloudy, with a high near 85. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    T-storms
    Likely

    High: 85 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.

    Chance
    T-storms

    Low: 70 °F

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 8am.  Partly sunny, with a high near 85. North wind around 5 mph becoming calm.

    Chance
    T-storms then
    Partly Sunny

    High: 85 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 68. Calm wind.

    Partly Cloudy

    Low: 68 °F

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 2pm.  Partly sunny, with a high near 90.

    Slight Chance
    T-storms then
    Chance
    T-storms

    High: 90 °F

  • Tuesday
    Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71.

    Chance
    T-storms

    Low: 71 °F

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers.  Partly sunny, with a high near 83.

    Chance
    Showers then
    Slight Chance
    T-storms

    High: 83 °F

  • Wednesday
    Night

    Wednesday Night: A slight chance of showers before 8pm.  Partly cloudy, with a low around 59.

    Slight Chance
    Showers then
    Mostly Clear

    Low: 59 °F

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 70. South wind around 5 mph.
Sunday
Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, with a high near 85. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.
Monday
A 30 percent chance of showers and thunderstorms before 8am. Partly sunny, with a high near 85. North wind around 5 mph becoming calm.
Monday Night
Partly cloudy, with a low around 68. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 90.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Partly sunny, with a high near 83.
Wednesday Night
A slight chance of showers before 8pm. Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 79.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 83.
Click Map For Forecast
Point Forecast:
Ottawa IL
 41.35°N 88.85°W
12:15 am CDT Aug 18, 2019
2am CDT Aug 18, 2019-6pm CDT Aug 24, 2019
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database