Look for the first freeze of the fall season on Saturday morning, as temperatures are expected to drop to around 30 degrees in Topeka and northeast Kansas.

The National Weather Service has issued a freeze warning for Nemaha, Brown, Pottawatomie, Jackson, Jefferson, Wabaunsee, Shawnee, Douglas, Lyon, Osage, Franklin, Coffey and Anderson counties from 11 p.m. Friday to 9 a.m. Saturday.

Some frost was possible on Friday morning in northeast Kansas, as temperatures were expected to drop into the  mid-30s following the passage of a strong cold front.

According to the National Weather Service, the average date for the first freeze of the fall in the Topeka area is between Oct. 12 and Oct. 17. Should the first freeze occur on Saturday morning, it would be on Oct. 12, which is in the average time frame for such an occurrence.

Meanwhile, Friday should be partly sunny with an afternoon high around 50 degrees.

A slight warm-up is on tap for the weekend, as highs Saturday and Sunday should reach the mid-60s, with clear skies expected both days.

Here is the seven-day outlook from the weather service:

• Today: Partly sunny, then gradually becoming sunny, with a high near 49. West wind around 15 mph, with gusts as high as 25 mph.

• Tonight: Clear, with a low around 30. West wind 5 to 10 mph becoming light in the evening.

• Saturday: Sunny, with a high near 65. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.

• Saturday night: Clear, with a low around 39. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

• Sunday: Sunny, with a high near 65. Calm wind.

• Sunday night: Clear, with a low around 41.

• Monday, Columbus Day: Sunny, with a high near 72.

• Monday night: Partly cloudy, with a low around 50.

• Tuesday: Sunny, with a high near 64.

• Tuesday night: Mostly clear, with a low around 38.

• Wednesday: Sunny, with a high near 60.

• Wednesday night: Mostly clear, with a low around 43.

• Thursday: Sunny, with a high near 68.