Categories: Illinois News

Tuesday forecast: Mostly dry start before evening showers move in



Tuesday opens with partly cloudy skies and a small chance of an isolated shower but much of the area will be dry. Rainfall coverage will increase later in the day and into Tuesday evening, especially from the city and points south. Locally heavy downpours are possible in the heavier cells, but not everyone will see this.    

Tuesday forecast: mostly dry start before evening showers move in 7

Latest hi-resolution model on how rainfall may lay out

Tuesday forecast: mostly dry start before evening showers move in 8
Tuesday forecast: mostly dry start before evening showers move in 9
Tuesday forecast: mostly dry start before evening showers move in 10
Tuesday forecast: mostly dry start before evening showers move in 11

September rainfall update 

We could certainly use the rain, while some areas have gotten in on locally heavy downpours, much of the area has missed out on rain. Here is the updated September rainfall tally for both airports which depicts how dry the month has been so far.  

Tuesday forecast: mostly dry start before evening showers move in 12

Tuesday AM Temperatures

Another mild start to the day with 60s areawide, well above the typical mid 50s for this time of year. 

Tuesday forecast: mostly dry start before evening showers move in 13

Tuesday PM High Temperatures

Not quite as warm as the past two days with mid to upper 70s expected for much of the area. A few inland locations are likely to hit the lower 80s.  

Tuesday forecast: mostly dry start before evening showers move in 14

Tuesday Sunburn Forecast

Tuesday forecast: mostly dry start before evening showers move in 15


Current Conditions

Tuesday forecast: mostly dry start before evening showers move in 16
Tuesday forecast: mostly dry start before evening showers move in 17
Tuesday forecast: mostly dry start before evening showers move in 18
Tuesday forecast: mostly dry start before evening showers move in 19

Next Few Hours

Tuesday forecast: mostly dry start before evening showers move in 20
Tuesday forecast: mostly dry start before evening showers move in 21

Extended Outlook

Chicago’s precipitation chances

An unsettled weather pattern continues the next few days with additional chances for scattered showers and possible thunderstorms. Note, rainfall will be hit or miss and highly varied across the area. 

Tuesday forecast: mostly dry start before evening showers move in 22

Humidity Forecast

Moderate levels of humidity will continue through mid-week helping to fuel any shower or thunderstorm chances. Noticeably drier, more comfortable air settles in later this week.

Tuesday forecast: mostly dry start before evening showers move in 23

Forecast GIF ECMWF model tracking additional chances for showers through mid-week

Tuesday forecast: mostly dry start before evening showers move in 24

Chicago Forecast Highs and departure from normal?

Highs take a dip to near seasonal levels later this week before another warm-up commences towards the coming weekend. 

Tuesday forecast: mostly dry start before evening showers move in 25

Forecast Mean Maximum Temperature Anomaly Thursday, September 25 through Monday, September 29

High temperatures  to average well above normal overall across the Northern Tier states  during the final week of September. 

Tuesday forecast: mostly dry start before evening showers move in 26

Forecast 6-10 Day Temperature Outlook September 28 through October 2

Much of the Lower 48 to average above normal by and large as we close September and open the new month of October a week from Wednesday. 

Tuesday forecast: mostly dry start before evening showers move in 27

Tuesday forecast: mostly dry start before evening showers move in 28

Climate and Environment news: WGN Weather Center blog

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