Monday looking good, but turning dangerously hot Tuesday

Tuesday deemed a First Alert Weather Day
Published: Jul. 29, 2022 at 1:07 PM CDT|Updated: Jul. 31, 2022 at 3:33 PM CDT
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SIOUX FALLS, S.D. (Dakota News Now) -- The weekend has been pretty good for the most part aside from a few showers and thunderstorms Sunday morning across northeast and eastern South Dakota into southern Minnesota.

We’ll have a mainly clear sky through Monday night with an isolated chance of showers and thunderstorms south of I-90 overnight Sunday and Monday evening. Rain chances sit at 20% or less for those areas. Highs Monday will be in the mid 80s to mid 90s with dewpoints on either side of 60.

The heat and humidity cranks up into Tuesday with 90s and triple digits Tuesday and dewpoints in the upper 50s to mid to upper 60s. This is why we have a FIRST ALERT WEATHER DAY in place, and it’s likely heat alerts will be needed. We’ll have a chance of showers and thunderstorms in the forecast Tuesday night through Wednesday morning ahead of a cold front. The Storm Prediction Center has introduced a level one risk for severe weather Tuesday night for areas along and east of a Sisseton to Huron to Lake Andes line with a level two risk from Marshall points northeast. Hail and damaging wind gusts would be the main threats.

The end of the week will dry out and highs will remain mostly in the 90s though temperatures tick up towards triple digits again along and west of the James River for Friday. Rain chances remain at bay though there will be isolated chances at times heading into next weekend.

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