Blair County Weather Outlook Altoona, Pennsylvania Weather 50F Mostly cloudy Forecast for This Afternoon Mostly cloudy with a 20 percent chance of showers. Highs in the mid 50s. Southeast winds around 5 mph. Forecast for Tonight Mostly cloudy with scattered showers. Lows in the upper 30s. Southeast winds around 5 mph. Chance of rain 30 percent. Forecast for Thursday Rain likely. Highs in the lower 50s. Southeast winds 5 to 10 mph. Chance of rain 70 percent. Forecast for Thursday Night Rain along with areas of fog. Mild with lows in the mid 40s. Southeast winds 10 to 15 mph. Chance of rain 90 percent. Forecast for Friday Areas of morning fog. Rain. Highs around 60. Southeast winds 10 to 15 mph. Chance of rain 90 percent. Forecast for Friday Night Periods of rain along with areas of fog. Mild with lows in the lower 40s. Chance of rain 90 percent. Last update Wed, 10 Mar 2010 12:53 www.rssWeather.com