An area of low pressure to the south will bring mostly cloudy skies to southern Wyoming today and Tuesday.  Although most of the precipitation with this system will stay to the south of the state, the far southern counties may see a few passing light showers later today.  The mountains in the south and west may see a few mixed showers or light snow too.  Today will be a much cooler day as well with highs mainly in the 30s and 40s.  Meanwhile central and northern areas will stay mainly dry with partly cloudy skies.