Normal human body temperature was determined over 170 years ago -- and the number has actually been decreasing since then.

This morning will be chilly with a mild afternoon ahead. It will cool down overnight. Tomorrow will be mild again with some clouds and sunshine. Then hold onto your hats. Snow is in the forecast!

Rutte said high school students can return to their classrooms for at least one day a week starting March 1. “We are at a time when we have to be prepared to take a little bit more risk,” he said. AdThe 9 p.m. to 4:30 a.m. curfew the Dutch government imposed sparked rioting when it was introduced. It was the subject of legal wrangling last week, when a judge ruled the curfew was improperly ordered and the government appealed. The public health institute credited the tough lockdown and curfew with reducing infections by an estimated 10% since Jan. 23.

Factor in the wind and we will have wind chills below zero by morning. Saturday will be mostly cloudy to partly sunny but cold. A fast moving area of low pressure bring snow showers after sunset Saturday and Saturday night. AdMonday night and early Tuesday will have some snow showers. Tuesday will be mostly cloudy partly sunny and cold.

NEW YORK The Latest on the U.S. Open tennis tournament (all times local):11:30 a.m.Day 6 has started at the year's second Grand Slam tournament the U.S. Open normally closes the major tennis championship season but the pandemic caused changes to the calendar. The sun is shining and the temperature is in the mid-70s Fahrenheit (mid-20s Celsius) as the third round continues Saturday. The highlight of the afternoon is expected to be Serena Williams against Sloane Stephens in Arthur Ashe Stadium. Williams owns 23 Grand Slam singles titles, including six in New York. Stephens won the 2017 U.S. Open.

Copyright 2019 CNN(CNN) - Germany recorded its highest-ever June temperature on Wednesday, as much of continental Europe contends with a major heat wave. The previous record stood at 38.5 Celsius (101.3 Fahrenheit), which was measured in 1947 in Bhlertal, which lies close to France. The longevity of the previous record -- 72 years -- shows just how unusual and intense the current heat wave is in Europe. France's national weather forecaster Mto-France, increased the number of heat-related weather alerts to 78 on Wednesday from earlier 65. A new June temperature record was also set neighboring Poland, where meteorologists measured 38.2 Celsius.