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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Quincy Regional Airport-Baldwin Field (KUIN)

Lat: 39.94°NLon: 91.2°WElev: 759ft.

Fog/Mist

63°F

17°C

Humidity 100%
Wind Speed NE 5 mph
Barometer 29.98 in (1014.5 mb)
Dewpoint 63°F (17°C)
Visibility 6.00 mi
Last update 20 Aug 5:54 am CDT
Extended Forecast for

8 Miles SSW Mount Sterling IL

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82. Northeast wind 3 to 6 mph.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Light and variable wind.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming west around 6 mph in the morning.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Cloudy during the early evening, then gradual clearing, with a low around 66. Light west wind.

    Low: 66 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 83. Northwest wind 3 to 8 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82. Northeast wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 63. Light and variable wind.
Friday
Sunny, with a high near 86. Calm wind becoming west around 6 mph in the morning.
Friday Night
A 20 percent chance of showers and thunderstorms. Cloudy during the early evening, then gradual clearing, with a low around 66. Light west wind.
Saturday
Sunny, with a high near 83. Northwest wind 3 to 8 mph.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Mostly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSW Mount Sterling IL
 39.87°N 90.81°W (Elev. 499 ft)
Last Update:
6:21 am CDT Aug 20, 2026
Forecast Valid:
6am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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