After temperatures reaching the 80s, Chattanooga is under a freeze warning for Friday and Saturday nights.
The predicted low is 31 on Friday night and 28 on Saturday night.
But the mercury is to rise to around 60 on Sunday.
Here is the latest forecast:
Today
Mostly cloudy, with a high near 54. North wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 31. North wind around 10 mph.
Saturday
Sunny, with a high near 48. Northwest wind around 5 mph.
Saturday Night
Mostly clear, with a low around 28. Northeast wind around 5 mph.
Sunday
Sunny, with a high near 59. Light and variable wind becoming south 5 to 10 mph in the morning.
Sunday Night
A 50 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 44.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 63.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 47.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 71.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 54.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 70.