For this to be a climate tool rather than a weather tool you would need to restrospectively compile your own data but you can come up with records for very specific data this way which may or may not suit your needs. If you know of better resources please let me know on glenn.swart@gmail.com or by message or tweet on Twitter:9
https://twitter.com/Glenn_Swart?s=09
Antarctica Right Now:
https://www.timeanddate.com/weather/antarctica/south-pole
Comprehensive tool:
https://earth.nullschool.net/#2018/07/12/1200Z/wind/surface/level/overlay=temp/orthographic=28.33,67.69,3000/loc=28.220,70.334