Yes

Based on the weather in Ames, Iowa, United States Of America as of February 14, 2016 4:58pm local time

Why? Because it's colder than a polar bear's pyjamas
Current Conditions
Overcast
Temp: 23°F-5°C
Wind: 6 MPH9.7 KPH
Precipitation: None

Next 2 hours: Yes

Next 4 hours: Yes

Next 8 hours: Yes