It’s Sol 4 on Mars for Phoenix. And although I haven’t been able to find a link to a consistent weather report, there is this:

From the Website:
The weather, as taken by the Canadian meteorological station, at the Phoenix landing site on Sol 4 was sunny with increasing dust, and therefore decreased visibility. Temperatures ranged from a high of minus 30 degrees Celsius (minus 22 degrees Fahrenheit) and a low of minus 80 (minus 112 degrees Fahrenheit). No wind measurements were available for Sol 4.