Ljubljana, Slovenia.
Temperature: -1°C Conditions: Freezing Fog Clouds: Indefinite Ceiling
Maribor, Slovenia.
Temperature: -2°C Conditions: Fog in the vicinity and Mist Clouds: Few Clouds
Portoroz, Slovenia.
Temperature: 3°C Conditions: Mist

Proof that prometniki (traffic cops) in Slovenia are absolutely merciless.
(Thanks Nicholas!)