Embrace efficiency (and savings)
The impact of the weather is more keenly felt by EVs because charging their batteries takes longer than refilling a gas tank, but they have the advantage of being much more cost-efficient because electricity is cheaper per mile than gasoline. AAA’s study found that driving an EV 1,000 miles with the A/C on when it’s 95°F outside adds about $8 more in electricity costs than driving at 75°F. By comparison, a gasoline vehicle rated at the U.S. average of 23.6 mpg would require an additional $21 in gasoline (and that's with the relatively low gas price of $2.43 per gallon).
Check the forecast ahead of a long-distance trip to see if you'll be traveling in very hot or cold weather. If so, plan for more frequent stops to charge, and map out the charging stations you'll be using and the distance between them.
Pre-heat or pre-cool before unplugging
Make time to warm up or cool down the inside of the vehicle while still connected to the charger. This lets the battery save its charge for driving.
Dial the climate control back a little
There's no avoiding using the heater or air conditioning in freezing or sweltering weather, but if you're trying to stretch out your driving range, use them modestly. Just like an indoor thermostat, it's more efficient to set the climate control to a comfortable temperature and dress appropriately than to run it on blast.
Park in a garage, if possible
Leaving the vehicle indoors can help keep the cabin temperature stable between drives, instead of letting it match the extremes of the weather outside.