National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

A Few Clouds

71°F

22°C

Humidity 94%
Wind Speed W 10 mph
Barometer 29.55 in (1000.2 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 17 Jun 10:52 pm CDT
Extended Forecast for

Rochester IL

  • Tonight

    Tonight: Mostly clear, with a low around 61. West wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers between 1pm and 2pm. Increasing clouds, with a high near 76. West northwest wind 8 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 81. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. Light and variable wind.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83. South southwest wind 3 to 6 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. Light and variable wind becoming east southeast around 5 mph after midnight.

    Low: 64 °F

    Mostly Clear
    then Chance
    T-storms

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 90%.

    High: 80 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 61. West wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday
A slight chance of showers between 1pm and 2pm. Increasing clouds, with a high near 76. West northwest wind 8 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 81. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 62. Light and variable wind.
Saturday
Mostly sunny, with a high near 83. South southwest wind 3 to 6 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. Light and variable wind becoming east southeast around 5 mph after midnight.
Sunday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 90%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Monday
Partly sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rochester IL
 39.75°N 89.55°W (Elev. 554 ft)
Last Update:
10:11 pm CDT Jun 17, 2026
Forecast Valid:
11pm CDT Jun 17, 2026-6pm CDT Jun 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation