According to the National Weather Service (NWS) in Pleasant Hill, temperatures will return to near normal by Friday with highs in the lower 50's with low temperatures finally shifting above freezing on Sunday.

Here's the forecast for the Sedalia/Warrensburg area according to the NWS:

Today
Mostly cloudy, then gradually becoming sunny, with a high near 40. North northwest wind 5 to 8 mph.
Tonight
Patchy fog between 9pm and midnight. Otherwise, mostly clear, with a low around 20. North northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 49. South southwest wind around 5 mph becoming calm in the afternoon.
Friday Night
Mostly clear, with a low around 26. Calm wind.
Saturday
Mostly sunny, with a high near 52. South wind 3 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Mostly cloudy, with a high near 50.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
Partly sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 56.