THOUGH THIS S80 CREW WARNED ORD TRACON AND TWR THAT THE ATIS WAS OUTDATED; ATC DID NOT UPDATE IT IN A TIMELY FASHION.

Narrative

DURING INITIAL APCH INTO ORD ON THE JVL4 ARR; WE RECEIVED ATIS XYZ; TIME XA56Z. THERE WAS A HVY LINE OF TSTMS JUST W OF ORD MOVING E APCHING THE ARPT FROM THE W. PASSING KRENA INTXN; ORD TRACON TOLD US TO EXPECT RWY 27L FOR LNDG. THE CURRENT ATIS SAID WIND 110 DEGS AT 11 KTS WITH NO MENTION OF PRECIP. I INFORMED THE TRACON THAT WE NEEDED NEW WX AND HE SAID HE WOULD CONTACT THE TWR. BY THAT TIME WE WERE ABOUT 6 MI N OF THE ARPT ON R DOWNWIND TO RWY 27R IN MODERATE RAIN AND IMC AT 7000 FT. TIME AT THAT POINT WAS APPROX XC00Z. THE ATIS WAS THEN 1 HR OLD. THE TRACON TOLD US HIS AWOS SAID 8 MI VISIBILITY. TAXIING IN AFTER LNDG AFTER TIME XC10Z; WE PULLED UP THE CURRENT ATIS. IT WAS STILL INFO XYZ; TIME XA56Z. THAT MAKES THE ATIS 1 HR 16 MINS OLD. DURING RAPIDLY CHANGING WX WITH HVY RAIN AND TSTMS MOVING IN OVER THE FIELD WITH RWY AND WIND CHANGES; I FEEL IT IS UNACCEPTABLE TO NOT HAVE BETTER WX INFO AVAILABLE TO US VIA ATIS. I FEEL THAT SAFETY WAS COMPROMISED BY NOT HAVING BETTER WX INFO PRIOR TO LNDG.