Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Current conditions at

Logan County Airport (KAAA)

Lat: 40.16°NLon: 89.34°WElev: 591ft.

Fair

75°F

24°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.03 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 9 Aug 12:35 am CDT
Extended Forecast for

San Jose IL

  • Overnight

    Overnight: Mostly clear, with a low around 73. South southeast wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 91. South wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 73. South southeast wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 88. South southeast wind 7 to 9 mph, with gusts as high as 16 mph.  Chance of precipitation is 40%.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 72. South southeast wind around 6 mph.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 87. South southwest wind 6 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 68. South southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 73. South southeast wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 91. South wind 9 to 13 mph, with gusts as high as 22 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 73. South southeast wind 7 to 9 mph, with gusts as high as 18 mph.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. South southeast wind 7 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 40%.
Sunday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. South southeast wind around 6 mph.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. South southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
A chance of showers. Mostly sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
San Jose IL
 40.3°N 89.61°W (Elev. 600 ft)
12:40 am CDT Aug 9, 2025
12am CDT Aug 9, 2025-6pm CDT Aug 15, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database