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

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Fair

64°F

18°C

Humidity 81%
Wind Speed S 9 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 17 Apr 1:52 am CDT
Extended Forecast for

Glenarm IL

  • Overnight

    Overnight: Mostly clear, with a low around 57. South wind around 7 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 84. Breezy, with a south wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 11pm, then showers and possibly a thunderstorm between 11pm and 4am, then a chance of showers after 4am. Low around 45. South wind 16 to 18 mph becoming northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 45 °F

    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 55. Breezy, with a northwest wind 18 to 20 mph, with gusts as high as 28 mph.

    High: 55 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Patchy frost after 3am. Otherwise, mostly clear, with a low around 36. West wind 8 to 15 mph, with gusts as high as 23 mph.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: Patchy frost before 8am. Otherwise, sunny, with a high near 61. West northwest wind 7 to 16 mph, with gusts as high as 25 mph.

    High: 61 °F

    Patchy Frost
    then Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 3am. Otherwise, mostly clear, with a low around 38. Northwest wind 6 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.

    Low: 38 °F

    Mostly Clear
    then Patchy
    Frost

  • Monday

    Monday: Patchy frost before 8am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 57. South wind around 7 mph.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 84. Breezy, with a south wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Showers and thunderstorms likely before 11pm, then showers and possibly a thunderstorm between 11pm and 4am, then a chance of showers after 4am. Low around 45. South wind 16 to 18 mph becoming northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 30 percent chance of showers before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 55. Breezy, with a northwest wind 18 to 20 mph, with gusts as high as 28 mph.
Saturday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 36. West wind 8 to 15 mph, with gusts as high as 23 mph.
Sunday
Patchy frost before 8am. Otherwise, sunny, with a high near 61. West northwest wind 7 to 16 mph, with gusts as high as 25 mph.
Sunday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 38. Northwest wind 6 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 77. Breezy.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Glenarm IL
 39.62°N 89.64°W (Elev. 600 ft)
Last Update:
1:26 am CDT Apr 17, 2026
Forecast Valid:
2am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation