how do you follow weather on the road

I run the Weather Channel App on my Phone

I use https://en.sat24.com/ - go to Forecast -> Rain forecast maps and select your region.

If you move your mouse over the timeline list on the right of the map, you can easily see the situation develop in the next days, and find the best weather conditions for your needs.

https://printsbery.com/planner-templates/daily-with-to-do

I use the Weather Channel app. It’s ok. Not great.

We have found Wind to be an issue at times. Especially TX, CO, UT.
Windy app seems to be pretty accurate.

We have an App on our cell-RadarNow. It gives radar view-also shows how/where the weather is moving and indicates what kind of weather. Have used it all over U.S., Canada, anywhere we might go in RV or just traveling.

From your phone you can access:

Weather.gov

SPC.noaa.gov (for severe weather info)

NHC.noaa.gov (for tropical weather info)

Better than anyone's commercial app and as close to real time conditions as you can get.

I use my laptop and ask for local weather for whatever town we are at and for the one we are headed to. If I need a couple days out, I look at the 7 day, and even sometimes use the monthly when planning. Accuweather.com is the most helpful to me. For current extreme weather we have a weather radio that automatically logs us into the county we are in with NOAA reports.

OTA and Local News Stations
Radio and local news

Internet/Weather Channel

So many options available

Simple.......

I use my Weather Channel app to check weather ahead of us on our planned route by entering planned stops along that route. If we find ourselves looking at the leading edge of a very ominous looking line of clouds, I check the radar on the weather channel. If high winds or hail, etc is forecast, we pull over as soon as we can find a parking lot or rest area, etc. and park facing the wind and put down our stabilizers. Then we enjoy the "show".

We just use the weather app on our phone and check the weather forecast for the cities and towns ahead.
Works fine for us.