 Radar weather is brought to you by Roberts Motors, an elite Ford dealer in Alton since 1949. Search robertsmotors.com for your next vehicle. Mostly cloudy skies, the forecast for your Friday with a high near 90 degrees. South winds 5 to 10 miles per hour. Tonight, mostly cloudy, a few showers possible. Showers and thunderstorms likely overnight and a low in the mid-70s.