Can someone explain this?

TODAY	TOMORROW	THU	FRI	SAT	6-10 DAY
Mostly Cloudy	AM Clouds/PM Sun	Partly Cloudy	Showers	Cloudy	Extended Forecast
High: 15° Low: 11°	High: 17° Low: 8°	High: 22° Low: 8°	High: 21° Low: 11°	High: 26° Low: 11°

Look closely at Thursday...  22 is not bad for a spring day.  Warmish, especially if the sun is shining.  But, what is with the low of 8?  That is cold, cold, cold for this time of year.  Bring on the warm weather!