ST. LOUIS — Hot weather will continue across the Bi-state area through the end of the week with humidity levels climbing into the weekend. Excessive heat is back this weekend as well with high temperatures reaching into the triple digits. The afternoon heat index values will be near 105-110 Friday, Saturday and Sunday.
The heat breaks to some degree late Sunday into Monday as a slightly cooler air mass moves in with a cold front and gives us a chance for rain and thunderstorms. Thunderstorm chances will remain in place through mid-week next week.
LATEST HIGH-RESOLUTION MODEL FORECAST FOR THE NEXT 12 HOURS
St. Louis Metro Forecast
Today: Sunny skies and slightly humid. Highs near 100.
Tonight: Clear skies. Lows in the 70s.
Friday: Mostly sunny. Highs in the low 100s. Heat Index up to 105.
Saturday: Mostly sunny. Highs in the low 100s. Heat Index up to 110.
Sunday: Partly sunny. 20% chance for isolated storms. Highs around 100. The heat index up to 105. A better chance for storms late night.
Monday: Partly sunny, scattered storms, especially in the morning. Highs in the low 90s.
Tuesday: Partly sunny with a few scattered storms possible. Highs in the mid 90s.
Wednesday: Partly sunny with a few thunderstorms possible. Highs near 97.
Thursday: A few scattered showers, otherwise mostly cloudy. Highs in the 90s.
Friday: Decreasing clouds, not as hot. Highs near 90.
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