Temp did a very similar raise for me as well around the same time. Check out the graph on my weather underground site. Winds were light around 2-4 mph then bumped to 8 and temp spiked into the 40s.
I had a low of 30 at the house. On my trip from Cashtown to York this morn the highest temp my truck hit was 36 in Gburg. I was mostly in the 32 to 34 range and hit 31 when passing by thomasville airport.