7-Day Forecast 40.2°N 87.97°W (Text-Only)
NWS Forecast for: Royal IL
Issued by: National Weather Service Lincoln, IL
Last Update: 10:36 am CDT Sep 14, 2026
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  • Today

    Today: Mostly sunny, with a high near 77. East southeast wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. East southeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 2pm, then a chance of showers between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 93. Heat index values as high as 101. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 40%.

    High: 93 °F

    Chance
    T-storms

  • Tuesday
    Night

    Tuesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 67. Calm wind becoming northeast around 5 mph after midnight.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 4pm.  Partly sunny, with a high near 89. Light east northeast wind.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Showers
    Likely

  • Wednesday
    Night

    Wednesday Night: A chance of thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 70. Light and variable wind becoming south around 5 mph after midnight.  Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms

  • Thursday

    Thursday: Partly sunny, with a high near 90. Southwest wind around 6 mph becoming northwest in the afternoon.

    High: 90 °F

    Partly Sunny

  • Thursday
    Night

    Thursday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Today: Mostly sunny, with a high near 77. East southeast wind 9 to 11 mph, with gusts as high as 18 mph.

    Tonight: Mostly clear, with a low around 64. East southeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Tuesday: A slight chance of showers and thunderstorms before 2pm, then a chance of showers between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Southwest wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Wednesday: Showers likely, with thunderstorms also possible after 4pm. Partly sunny, with a high near 89. Light east northeast wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Wednesday Night: A chance of thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Light and variable wind becoming south around 5 mph after midnight. Chance of precipitation is 30%.

    Thursday: Partly sunny, with a high near 90. Southwest wind around 6 mph becoming northwest in the afternoon.

    Thursday Night: Mostly cloudy, with a low around 66.

    Friday: Partly sunny, with a high near 86.

    Friday Night: Partly cloudy, with a low around 66.

    Saturday: A chance of showers. Mostly sunny, with a high near 86.

    Saturday Night: A chance of showers. Partly cloudy, with a low around 63.

    Sunday: A chance of showers. Partly sunny, with a high near 81.



    Royal IL
     40.2°N 87.97°W (Elev. 712 ft)

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