Strong Storms Possible Sunday Night Into Monday Morning
As we head through Sunday night, mainly into Monday morning, we will be watching storms moving out of the Dakotas into Minnesota that could be on the strong side. Damaging winds and large hail would be the greatest threats along with lightning and heavy downpours. Timing in the metro would be right around to just after the morning commute.
Due to the potential of strong to severe storms - capable of damaging winds and large hail - parts of Minnesota are under either a Marginal (threat level 1 of 5) or Slight (level 2 of 5) risk both Sunday and Monday. Again, for the most part, these threats are for the Sunday night and early Monday activity.
As we look at Monday in the Twin Cities, the greatest threat of storms (some strong) would be in the morning hours right around the commute. As we head toward the afternoon clouds will stick around but the storm chance is minimal. Morning temperatures start off in the upper 60s with highs climbing to the low 80s.
For the most part shower and storm activity across the state will be during the morning and midday hours Monday, with the precipitation clearing for the afternoon. A few spare showers may remain, however, mainly in northwestern parts of Minnesota. Highs will range from the 60s along the North Shore to near 90F in southwestern Minnesota.
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Heat And Humidity Returns Tuesday
On Tuesday, a warm front surges northward bringing the hottest weather of the season to the region. Highs across a good portion of central and southern Minnesota are expected to climb into the 90s - and with dewpoints in at least the 60s, it'll feel even hotter. Temperatures will be a touch cooler out in western Minnesota due to the nearby cold front. A few isolated storms can't be ruled out over the northern half of the state, but mainly sunny skies are otherwise expected statewide.
A few areas could see highs approach records as we head through Tuesday. This includes the Twin Cities (record 98F from 1987), Rochester (record 97F from 1987), St. Cloud (record 95F from 1994), International Falls (89F from 1973), and Eau Claire (98F in 1987).
Once you factor in the humidity on top of the heat, it's going to feel somewhat miserable out there on Tuesday. Heat index values in the Twin Cities are expected to top 100F during the afternoon hours. Expect to see Heat Advisories and/or Excessive Heat Watches/Warnings in place across southern Minnesota.