Sunday, Aug. 20
The center of high pressure shifts east, allowing strengthening southerly wind flow to bring hot and increasingly more humid air into northern Illinois and northwest Indiana.
Afternoon temperatures approach and even exceed 90°, while dew-points reach into the upper 60s.
Scattered clouds and a few whisps of cirrus invade the sky during the afternoon. Clouds increase overnight, holding temps from dropping much lower than 70-degrees.
South to southwest winds 10…Read More