National Weather Service United States Department of Commerce

Significant threat for flash floods in the Southwest U.S. this week

Heavy precipitation is expected over portions of the Southwest U.S. this week due to the remnants of weakening Tropical Storm Odile. The heavy rainfall will be concentrated across southern Arizona, southern New Mexico and western Texas where 3 to 6 inches could fall by Thursday, with some locales receiving up to 9 inches. Flash Flood Watches are in effect for much of this area.
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Hazardous Weather Conditions

Current Conditions

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2 Miles NW Cahokia IL

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

Today

Mostly Sunny

Mostly
Sunny

High: 67 °F

Tonight

Mostly Clear

Mostly
Clear

Low: 51 °F

Wednesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 73 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 56 °F

Thursday

Sunny

Sunny

High: 75 °F

Thursday
Night

Mostly Clear

Mostly
Clear

Low: 57 °F

Friday

Sunny

Sunny

High: 79 °F

Friday
Night

Mostly Clear

Mostly
Clear

Low: 61 °F

Saturday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 82 °F

Detailed Forecast

  • Today Mostly sunny, with a high near 67. North wind 3 to 6 mph.
  • Tonight Mostly clear, with a low around 51. Light northeast wind.
  • Wednesday A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the afternoon.
  • Wednesday Night Partly cloudy, with a low around 56. Light east wind.
  • Thursday Sunny, with a high near 75. East wind 3 to 7 mph.
  • Thursday Night Mostly clear, with a low around 57.
  • Friday Sunny, with a high near 79.
  • Friday Night Mostly clear, with a low around 61.
  • Saturday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
  • Saturday Night Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
  • Sunday A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
  • Sunday Night Mostly clear, with a low around 57.
  • Monday Sunny, with a high near 75.