Periods of showers and thunderstorms are expected to impact the Chicago area over the next two days, with some northern counties likely to see nearly two inches of rain before a system finally moves out of the area.
According to the National Weather Service, a flash flood watch has been issued for DeKalb and McHenry counties and will remain in effect until 1 p.m. Sunday.
Boone, Lee, Ogle and Winnebago counties are also included in the watch.
This watch comes as a weather system passes through the region, bringing several rounds of showers and thunderstorms across the region. The main impacts of this system will be felt in areas north of Interstate 80, NWS officials say, with some places likely to see up to two inches of rain by Monday.
Areas south of the highway will still see scattered showers and storms, but should see less overall accumulation.
Due to rain and increased cloud cover, temperatures are expected to be cooler than Saturday, with highs reaching the mid-80s across the region.
On Monday, the possibility of showers and storms will remain in the forecast, with highs again reaching the mid-80s, but things will change as Tuesday approaches.
Cooler and less humid conditions are expected to set in after Monday, with dry conditions expected for the remainder of the work week and into the weekend. Temperatures will fluctuate mid-week, dropping to the mid-70s on Tuesday and rising back to the mid-80s for Wednesday, but after that highs are likely to settle near their seasonal average in the upper 70s and 80s, according to extensive information. forecasting models.
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