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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring moderate to locally heavy rain to portions of South Texas into Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

85°F

29°C

Humidity 68%
Wind Speed S 5 mph
Barometer 30.08 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 15 Aug 10:50 am CDT
Extended Forecast for

Manchester IL

  • Today

    Today: Sunny, with a high near 92. Heat index values as high as 103. South southwest wind around 6 mph.

    High: 92 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. East wind around 6 mph becoming south after midnight.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Heat index values as high as 101. South wind around 6 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. South southeast wind 3 to 5 mph.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 94. South wind 3 to 5 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South southeast wind 3 to 5 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. South wind around 6 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 92. Heat index values as high as 103. South southwest wind around 6 mph.
Tonight
Mostly clear, with a low around 73. East wind around 6 mph becoming south after midnight.
Saturday
Sunny, with a high near 94. Heat index values as high as 101. South wind around 6 mph.
Saturday Night
Mostly clear, with a low around 74. South southeast wind 3 to 5 mph.
Sunday
Sunny, with a high near 94. South wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 75. South southeast wind 3 to 5 mph.
Monday
Sunny, with a high near 94. South wind around 6 mph.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 93.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Manchester IL
 39.55°N 90.33°W (Elev. 656 ft)
Last Update:
10:41 am CDT Aug 15, 2025
Forecast Valid:
11am CDT Aug 15, 2025-6pm CDT Aug 21, 2025
 
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