(note that TAFs or METARs don't state humidity).
Hm. Don't know about your place, but down here METAR's do give an indication of measured humidity. Which does not say everything, not by a long way, indeed. I particularly liked the M00 bit... what's the difference between 00 and M00?
FIR: EBBU
METAR
METAR EBBR 242250Z 25008KT 9999 FEW010 SCT012 03/01 Q1006 TEMPO BKN012=
METAR EBOS 242250Z 29012KT 9999 FEW018TCU SCT045 05/M00
METAR EBCI 242250Z 22006KT 6000 NSC Q1006 TEMPO 4500 SHRAGS=
00/M02 Q1006 NOSIG=
TAF FC
TAF EBCI 242004Z 2421/2506 23008KT 9999 SCT015 BKN040 PROB40 TEMPO 2421/2506 BKN012 PROB30 TEMPO 2502/2506 2000 -SHSNRA BKN004=
TAF FT
TAF EBBR 241720Z 2418/2524 23008KT 9999 SCT015 BKN040 PROB30 TEMPO 2418/2518 4500 SHRA SCT008 BKN012 PROB30 TEMPO 2502/2509 3000 -SHRASN BKN008 BECMG 2517/2520 04010KT =
TAF EBOS 241720Z 2418/2524 30013KT 9999 SCT015 SCT040 TEMPO 2418/2518 4500 SHRA BKN014CB BECMG 2515/2518 05017KT =