Isolated t-storms are possible Friday with a much better chance of widespread t-storms by late Saturday and into early Sunday with possibly some severe weather moving through parts of northern Illinois.
Temperatures will really heat up on Saturday with highs in the low to mid 90’s, cooling off into the 80’s on Sunday on the other side of the frontal boundary.
Saturday: Partly to mostly cloudy with a 30 percent of isolated showers/t-storms from 4 p.m. to 8 p.m, increasing to a 60 percent chance of occasional showers/t-storms developing around 8 p.m. and continuing through 2 a.m. Sunday.
- Rain Amounts: 0.35 to 0.75 inches
- Low temp: 71 degrees Fahrenheit.
- High temp: 93 degrees Fahrenheit.
- Wind: South to southwest at 10-20 mph, shifting west by 10 p.m.
Sunday: Mostly cloudy in the morning, partly cloudy during the afternoon.
- Low temp: 71 degrees Fahrenheit.
- High temp: 85 degrees Fahrenheit.
- Wind: North at 10-20 mph with gusts to 25 mph
Monday: Mostly sunny and quiet.
- Low temp: 65 degrees Fahrenheit.
- High temp: 84 degrees Fahrenheit.
- Wind: Northeast at 10-15 mph
Your Week Ahead: August 3 to August 10, 2012
Temperature Trends: Temperatures will average above normal
Precipitation Trends: Precipitation will average below normal. A moderate to severe drought is in place over much of northeast Illinois with an extreme drought up across southern Wisconsin and northwest Illinois.
The Week In Preview
Weekend Pattern- Showers and t-storms will develop over the weekend as a frontal boundary and upper-air disturbance move into the Upper Midwest. Storms will become most numerous late in the day and early Sunday with locally heavy rain and possibly some severe weather to deal with as a few lines move through the region. Storms will be most numerous over southern Wisconsin, northern and central Illinois, eastern Iowa and northwest Indiana.
Early to Midweek Pattern- Monday and Tuesday look dry as a ridge of high pressure builds into the region. Temps will be a little cooler with winds off the lake. A warm front pushing in from the southwest will cause a few showers/t-storms by late Wednesday.
Late Week Pattern- Isolated showers/t-storms are possible toward the end of the week as the frontal boundary stalls somewhere across the Midwest. There will be many dry hours through on Thursday and Friday.
Temperatures: Above average temperatures will continue with highs ranging from 85 to 90 through much of the period with higher heat index values. Daily lows will mainly range between 65 and 70.
Severe Weather Outlook: There is a risk of severe weather by Saturday night with an increased risk of gusty winds and heavy rain as a broken line moves through. (2.5/5 probability)
