Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Overcast

66°F

19°C

Humidity 90%
Wind Speed SW 5 mph
Barometer 30.01 in (1015.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 20 Jun 4:52 am CDT
Extended Forecast for

Clear Lake IL

Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Watch
  • Overnight

    Overnight: A 20 percent chance of showers.  Mostly cloudy, with a low around 65. Light west northwest wind.

    Low: 65 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 10 percent chance of showers before 7am.  Mostly cloudy, then gradually becoming sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 82 °F

    Slight Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62. Calm wind becoming east around 5 mph after midnight.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and possibly a thunderstorm, mainly before 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could produce heavy rainfall.  High near 75. East southeast wind 7 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 75 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 60. Southwest wind 9 to 11 mph becoming north in the evening. Winds could gust as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 60 °F

    Heavy Rain

  • Monday

    Monday: Mostly cloudy, with a high near 76. North wind around 11 mph, with gusts as high as 20 mph.

    High: 76 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Northeast wind 3 to 7 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 65. Light west northwest wind.
Saturday
A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 62. Calm wind becoming east around 5 mph after midnight.
Sunday
Showers and possibly a thunderstorm, mainly before 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could produce heavy rainfall. High near 75. East southeast wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 60. Southwest wind 9 to 11 mph becoming north in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Mostly cloudy, with a high near 76. North wind around 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 56. Northeast wind 3 to 7 mph.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Clear Lake IL
 39.84°N 89.54°W (Elev. 548 ft)
4:36 am CDT Jun 20, 2026
5am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database