National Weather Service United States Department of Commerce

Severe weather possible for parts of eastern U.S.

The NWS Storm Prediction Center is forecasting a risk of severe thunderstorms Tuesday evening across parts of the Appalachians & eastern Great Lakes, from eastern Kentucky northeastward to central New York. The main threat will be strong, damaging wind gusts. Isolated strong to severe storms will also be possible across parts of the southern Plains & lower Miss. Valley.
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Hazardous Weather Conditions

Current Conditions

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3 Miles SSW Pontoon Beach IL

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

Tonight

Mostly Clear

Mostly
Clear

Low: 67 °F

Wednesday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 88 °F

Wednesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 73 °F

Thursday

Mostly Sunny

Mostly
Sunny

High: 94 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 74 °F

Friday

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

High: 90 °F

Friday
Night

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

Low: 66 °F

Saturday

Mostly Cloudy

Mostly
Cloudy

High: 77 °F

Saturday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 58 °F

Detailed Forecast

  • Tonight Mostly clear, with a low around 67. Calm wind.
  • Wednesday A 40 percent chance of showers and thunderstorms, mainly after 2pm. Increasing clouds, with a high near 88. Calm wind becoming southeast 5 to 9 mph in the morning.
  • Wednesday Night A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Southeast wind around 7 mph.
  • Thursday Mostly sunny, with a high near 94. Heat index values as high as 105. South wind 7 to 11 mph.
  • Thursday Night Partly cloudy, with a low around 74. South wind 6 to 9 mph.
  • Friday A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
  • Friday Night Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
  • Saturday Mostly cloudy, with a high near 77.
  • Saturday Night Mostly cloudy, with a low around 58.
  • Sunday Mostly sunny, with a high near 76.
  • Sunday Night Mostly clear, with a low around 57.
  • Monday Mostly sunny, with a high near 79.
  • Monday Night Mostly cloudy, with a low around 63.
  • Tuesday A 30 percent chance of showers. Mostly cloudy, with a high near 82.