There's almost no weather you can't bike in, just requires decent clothing and studs like parent mentions. In Calgary Alberta one year I commuted 50 km across the city each way with ebike for an entire year. With decent snow clearing, studded tires there was probably only ten days I didn't want to or couldn't take my bike.
Good point about the heat, that can indeed be dangerous if you’re not used to/trained to ride in those conditions. The same is. kt true for cold conditions where it’s really just clothing and tires.
What you can do in hot conditions is ride an ebike.
94F with humidity around 70% is a dew point of 83. Most scales will rate a dew point of above 70 as something like "miserable" or "intolerable".
The only outdoor activity I want to be doing when the dew point is 83 is called "going inside where there is AC". No I will not be riding an ebike around when the dew point is 83.
It’s just hot and humid, you’re not on Mars. Of course it’s more convenient to take the car, but it’s not dangerous to use an ebike in those situations.
Very unlikely you’re going to get heat stroke in 10 minutes or even 10 miles if it’s 94*F. Unpleasantly hot? Sure, I guess, though I ride through similar weather without problems (beyond sweat).
Spiked tires work really well in winter by the way.