With prop guards off, sport mode, max attitude angle Tello can with do fine in a pretty stiff breeze. Don't fly higher than you have to (wind gets much stronger up there) but stay above 1.5m as Tello reduces attitude angles below that ( some ingenious ill-conceived safety feature ).
Don't land as usual as Tello is blown away then, instead either hand land or just grab it out of the sky and turn Tello 90° to kill the motors
TelloFpv only: Make sure rates for pitch & roll are 100%. In case of severe gust taking away your drone you can rapidly tap the stop button like mad to perform an emergency shutdown. Better to let Tello fall out of the sky than watch it sail off with the wind.