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St. Louis forecast: Summer heat hits this weekend

3-day stretch of the 90s start tomorrow.

ST. LOUIS — Temperatures will soar this weekend. It will feel very much like summertime in St. Louis. Saturday will be dry for most locations. Isolated storms will develop during the heat of the afternoon. Temperatures will top out in the mid 80s. Sunday will be mostly sunny, but still humid with highs near 90.

Our warm pattern lingers into next week with daytime highs soaring near 90 Monday and Tuesday. Another chance of storms will arrive on Tuesday evening and night. Tuesday is a weather alert day for elevated severe potential. 

The warm and potentially unsettled pattern may linger through the Memorial Day weekend.

Credit: KSDK

ST. LOUIS METRO FORECAST 

Today: Spot storms, partly sunny...highs in the low to mid 80s. 

Sunday: Sunny...highs around 90.

Monday: Increasing clouds, a spot storm possible, lots of dry time...highs near 90.

Tuesday:  Evening severe storm risk. Highs in the low 90s.

Wednesday: Showers and storms around, then clearing. Highs in the 80s. 

Thursday: Mostly sunny,  humid. Highs in the low 80s.

Friday:  Partly cloudy, storm chances. Highs in the low 80s.

Saturday:  Partly cloudy, storm chances. Highs in the mid 80s.

Sunday:  Partly cloudy, storm chances. Highs in the mid 80s.

Monday: Partly cloudy, storm chances. Highs in the mid 80s.

Latest High-Resolution Model Output:

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The Weather First Team will use "Storm Alert" to refer to life-threatening or major-impact weather conditions in our region. "Weather Alert" refers to nuisance or disruptive weather and is indicated by orange icons and bars in our weather graphics on TV and online.

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Credit: KSDK
The counties we serve in Missouri and Illinois are centered around the St. Louis area.

In Missouri, we serve these counties: Crawford County, Franklin County, Gasconade County, Iron County, Jefferson County, Lincoln County, Madison County, Perry County, Phelps County, Pike County, Reynolds County, St. Charles County, St. Francois County, St. Louis City, St. Louis County, Ste. Genevieve County, Warren County, and Washington County.

In Illinois, we serve Bond County, Calhoun County, Clay County, Clinton County, Fayette County, Greene County, Jefferson County, Jersey County, Macoupin County, Madison County, Marion County, Monroe County, Montgomery County, Randolph County, St. Clair County, and Washington County.

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