A warm start gives way to cooler fall weather in this week’s Lombard-area forecast, with a chance of thunderstorms Thursday and chilly nights heading into the weekend.

Here’s the outlook for October 13–19, useful for planning around Lombard, Glen Ellyn and Villa Park.

Tuesday, October 13: Clouds and sunshine, with a high near 82°F and an overnight low around 64°F.

Wednesday, October 14: Mostly cloudy, cooler and less humid, with a high of 66°F and a low of 56°F.

Thursday, October 15: Cloudy with possible afternoon thunderstorms; expect a high of 63°F and a low of 51°F.

Friday, October 16: Windy with a mix of clouds and sunshine, a high near 59°F and a low around 39°F.

Saturday, October 17: Partly sunny, with a high of 58°F and a chilly overnight low of 38°F.

Sunday, October 18: Partly sunny, reaching 60°F before dipping to 45°F overnight.

Monday, October 19: Cloudy, with rain moving into the area during the afternoon; high 64°F, low 46°F.

Keep a jacket handy for evening outings, and check the forecast again before outdoor plans.

Forecast checked October 11; conditions and temperatures may change.