Saturday, October 4, 2025

Forecast: Sunny but chilly start to weekend

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Current Weather Conditions and Forecast

Current Conditions

The current weather conditions are characterized by unseasonably cool temperatures, with clouds breaking and skies gradually becoming clear. The winds are diminishing, with a west wind subsiding to 5-10 mph late. The low temperature is expected to be around 46, with the coolest inland locations experiencing temperatures in the low 40s.

The Next Few Hours

In the next few hours, the weather is expected to remain cool, with a brief period of cloud coverage riding in from the northwest as a weak disturbance passes to the north. There is a slight chance of errant sprinkles clipping northern parts of the metro area, but most areas will remain dry.

Saturday Highs

Unseasonably chilly air continues for a third consecutive day, with highs more typical of the second week of October. The high temperature is expected to be in the mid-50s to low 60s, with the warmest temperatures near Lake Michigan.

Saturday Day Planner

Temperatures will moderate a bit by afternoon, following the chilly start to the day, but will fall well short of typical norms. The wind will be out of the northwest at 10-15 mph, with partly sunny skies.

Extended Outlook

The Chicago area is not alone in the early season chill, with low temperatures Saturday morning expected to dip near frost levels across portions of the northern Plains and Upper Midwest.

Sunburn Forecast

Saturday U.S. Morning Lows

Saturday Morning Lows & Departure from Normal

Saturday Highs

Summer heat persists across portions of the Pacific Northwest, Desert Southwest, Gulf Coast, Southeast, and portions of the Northeast, while the remainder of the country is getting an early taste of Fall.

Weather Maps

For the latest weather maps and forecasts, visit the WGN Weather Center website.

Climate & Environment

Stay up-to-date on the latest climate and environment news from the WGN Weather Center blog.

Interactive Radar

Track the latest weather patterns with our interactive radar tool.

Weather Bug Cameras

View live weather conditions from our network of Weather Bug cameras.

7-Day Outlook

Plan your week with our 7-day forecast, featuring detailed weather conditions and temperature forecasts.

Weather Center Newsletter

Stay informed about the latest weather news and forecasts with our weekly newsletter.

Current Conditions

Next Few Hours

Extended Outlook

Chicago Forecast Highs & Departure from Normal

The early season cool spell has three more days to run, but a noticeable improvement is expected as we move into next week.

Upper-level Winds: Current vs Next Wednesday

Upper-level steering winds blowing in from Canada’s Yukon Territory will shift north and east with time, and a more west/southwest jet-stream flow will allow much warmer conditions by the middle of next week.

Forecast 850 millibar 10-day Temperature Anomaly Animation

Blue colors represent areas of cooler than normal, and orange and red colors depict areas of warmer than normal. The darker the shading, the more above or below normal temperatures are likely to be.

This technique is a good proxy indicator of how temperatures will respond at ground level. You can see by this animation that we are headed for much warmer weather next week following a chilly weekend.

Forecast Precipitation Next Seven Days

No help from Mother Nature for area lawns and gardens, as no measurable rainfall is expected across the Chicago area or even the entire state of Illinois and Indiana through at least next Friday night, September 12th.

Conclusion

In conclusion, the current weather conditions are characterized by unseasonably cool temperatures, with a brief period of cloud coverage expected in the next few

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