Monday forecast: Sunshine returns with mild highs before evening showers

After a gloomy stretch, Monday will bring generous sunshine to Chicagoland. Temperatures will climb into the upper 60s, making for a pleasant and comfortable afternoon.

However, clouds will begin to build back in later in the day. A few scattered showers are possible Monday night, so keep an umbrella handy.

High temps Tuesday are only forecast to be in the mid-to low 50s.

Wednesday looks to be the chilliest afternoon this week, with highs around 53 under partly sunny skies. A bit more sun is likely on Thursday, with highs in the upper 50s.

Then, clear skies Thursday night could lead to our first widespread frost of the season away from Lake Michigan, with Friday morning lows in the mid- to low 30s.

It’s back to the low 60s in the early forecast for both days next weekend, with a slight chance of a few Saturday showers. 

8-14-day temperature outlook: Oct. 25-31

After the chilly midweek temps, milder than average weather returns late this week and may continue overall for the final week of October across the eastern two-thirds of the U.S., while cool conditions persist across portions of California and the Pacific Northwest.  

Upper air flow: Next 10 days

A parade of troughs (cool, unsettled weather) from the North Pacific into the Northwest U.S. will progress across the northern tier of states, resulting in a fairly active pattern. 

A significant central U.S. blocking ridge builds in the Great Lakes and Northeast in the day 7-10 timeframe (above normal temperatures), with a huge trough developing in the Pacific Northwest

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