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

Showers and Storms in the East; Dangerously Hot and Dry in the West

A front will bring scattered showers and storms to portions of the Central and Eastern US. Severe storms are expected in parts of the Great Plains and Ozarks today. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Elevated wildfire conditions will develop across portions of the Northern/Central Plains and air quality issues will persist in the Northwest. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

70°F

21°C

Humidity 88%
Wind Speed N 3 mph
Barometer 30.11 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 6 Aug 3:50 pm CDT
Extended Forecast for

Troy IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 78. South wind around 8 mph.

    High: 78 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 70. Southeast wind around 6 mph.

    Low: 70 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 87. Southeast wind 5 to 7 mph becoming west in the morning.

    High: 87 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind 3 to 5 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.

    High: 89 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 78. South wind around 8 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 70. Southeast wind around 6 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 87. Southeast wind 5 to 7 mph becoming west in the morning.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind 3 to 5 mph.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 72.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 75.
Monday
Mostly sunny, with a high near 93.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Troy IL
 38.72°N 89.89°W (Elev. 551 ft)
Last Update:
1:26 pm CDT Aug 6, 2026
Forecast Valid:
3pm CDT Aug 6, 2026-6pm CDT Aug 13, 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