National Weather Service United States Department of Commerce

Oppressive heat and humidity building into the central and southeast U.S.

A heat wave is building into parts of the central and southeast U.S. this week. The combination of heat and humidity will lead to dangerous heat indices, especially in parts of the central Mississippi River Valley where an Excessive Heat Warning is in effect. Heat Advisories are in effect elsewhere across the region. Relief is not expected for several days.
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Hazardous Weather Conditions

Current Conditions

Southern San Luis Valley

Zone Forecast

  • Tonight Partly cloudy. Lows in the mid to upper 40s. Southwest winds 10 to 15 mph becoming south after midnight.
  • Thursday Partly sunny. A 10 percent chance of thunderstorms in the afternoon. Highs 73 to 80. Light winds.
  • Thursday Night Mostly cloudy. A 10 percent chance of thunderstorms until midnight. Lows in the mid 40s to lower 50s. Southwest winds around 10 mph.
  • Friday Mostly cloudy with a 30 percent chance of thunderstorms. Highs 68 to 76. Southwest winds up to 10 mph.
  • Friday Night Mostly cloudy. Lows in the mid to upper 40s. Southwest winds around 10 mph.
  • Saturday Through Sunday Mostly cloudy. Highs 70 to 77. Lows in the mid to upper 40s.
  • Sunday Night Through Wednesday Mostly cloudy with a 10 percent chance of thunderstorms. Lows 44 to 50. Highs 70 to 77.