Yep more then likely your freon is low. The above is the quick check.
Hopefully it's not the evaporator that sprung a leak. That is not anywhere near the top of my fun things to replace list.
97 Sahara, 74 Renegade, 72 CJ5, 55 Willy's (the Beast) Boss 302, 6:34 gearing, Bose 901 speakers.
God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.