Seasonable temperatures Sunday with isolated showers likely south

Sunday will be a mostly cloudy, cooler day behind a cold front. Much warmer weather will return for Monday and Tuesday before true autumnal temperatures dig in for the latter part of the week. Here is the summary forecast for the Twin Cities area:

Weather outlook for the Twin Cities area
Weather outlook for the Twin Cities area
Twin Cities National Weather Service

Highs on Sunday should range from the upper 60s in the northeast around Ely, Isabella and the Boundary Waters to the mid 70s. The Twin Cities should have a high around 75. And the dew point will drop a bit more behind that front.

Then warmer

Monday and Tuesday will see a quick warmup. The Twin Cities might get to 85 on Tuesday.

Cooler for the autumnal equinox

Temperatures will turn sharply cooler midweek. Highs on Wednesday are likely to be from the mid 50s to the mid 60s.

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Forecast high temperatures Wednesday
Forecast high temperatures Wednesday
NOAA Weather Prediction Center

High temperatures around Minnesota on Thursday could be just from the mid 50s to low or mid 60s as we note the autumnal equinox.

Then Friday might be the coolest day of the week.

Forecast high temperatures Friday
Forecast high temperatures Friday
NOAA Weather Prediction Center

We. Need. Rain.

Many areas of central and southern Minnesota need rain badly. MSP airport has measured just 0.15 inches of rain this month as much of the metro area remains in severe drought.

Drought monitor issued September 15
Drought monitor issued September 15
NOAA

Mankato has measured a meager one-tenth of an inch of rain in September. Meanwhile, International Falls on the northern border has picked up almost twelve inches of precipitation (that’s rainfall plus the liquid in the snowfall) more than normal since January.

A few chances for rain

A few isolated showers will continue in the Arrowhead Sunday. By afternoon, isolated showers and possibly a few thunderstorms could dot southern Minnesota. A few storms might reach as far north as the Twin Cities by late afternoon.

Another chance for scattered showers could come our way on Wednesday with a cold front passage. The best chance of widespread rain might be Friday-Saturday.