Minnesota heat wave drives near‑90°F index before thunderstorms

A hot and humid weather pattern is gripping northeastern Minnesota and northwestern Wisconsin, with afternoon temperatures in the upper 80s to low 90s and heat index values reaching the upper 80s to low 90s. Heat advisories remain in effect, and officials warn of moderate to major risks of heat‑related illnesses for anyone outdoors.

Later in the week, a new batch of thunderstorms is expected to move into the region. Forecasts call for isolated strong to severe storms capable of producing large hail, damaging wind gusts, and locally heavy rain that could exceed an inch, raising the possibility of localized flooding in poorly drained areas. The Twin Cities area faces similar conditions, with highs around 90°F and heat‑index values in the mid‑90s, isolated storms on Wednesday, and a higher chance of stronger storms Thursday night into Friday, potentially bringing heavy rainfall.

Residents are urged to stay hydrated, seek shade or air‑conditioned spaces during peak heat, and monitor updated forecasts as conditions evolve.