When folks ask about routes to take our standard response here in RTA is to tell you to look at the weather and make your decision then.
This might not be specific enough. How do you look at the weather? TV? Broadcast radio? Newspaper? Weather Channel?
I like to use aviation weather forecasting resources which also helps predict what will be happening in 12,18,24, 36 and greater intervals.
US NOAA Webpage for surface weather conditions: http://www.aviationweather.gov/progchart/sfc
Use the >> arrows to step the forecast forward to see the expected movements of fronts and precipitation bands.
Tenday weather website is also useful but is a commercial site with ads so I won't link it here.