I’m always surprised how much people seem to want to constantly know the weather.

I'm in Scotland. Looking outside and seeing blue skies does not mean it's safe to leave without a rain jacket, or a thermal layer. Seeing fog in the morning doesn't mean you don't need shorts for the afternoon. It being 0 outside today doesn't mean it won't be 10 degrees tomorrow. Knowing it's going to rain between 10 and 2 is good motivation to take the dog out before 10. Knowing it's going to rain on Sunday but be clear on Saturday is a good reason to book outdoor activites (golf) on Saturday instead.

This may due to geographical differences, not sure where you live versus OP but I have lived in at least 7 different cities throughout my life and in some of those I had to deal with really unpredictable weather whereas in others it was easier to just wing it and not regret leaving with a jacket or umbrella for example.

I think with more outdoor activities, it's important to know what is waiting you in a few hour. For cycling example wind and rain information is rather good to know.

Australia is the skin cancer capital of the world, with 2 in 3 of us diagnosed by age 70. The most used complication on my Apple Watch is the UV index, beating out weather temp, battery etc.

Strong correlation with those who go outside.

It could be that they live in an area with more variable or more unpredictable weather than you. Or that they are much more outdoorsy. Or something else altogether. I'm surprised by your surprise. People live wildly different lifes and have correspondingly wide-ranging needs and preferences.

If you have to walk the dog and know in advance it will stop or start raining in 20 minutes....

Here in Reno, especially at this time of year, constant knowledge of the weather = constant knowledge of whether to expect road closures / traffic delays from snow, or whether I need to add extra time before going somewhere to defrost the windshield and remove snow, or whether I should grab a jacket.

Not constantly but instantly. And because you don’t when they want it you have to show it always. Just like clocks always show the time.

I had Windows^(TM) installed in my house when it was built. We're on the top of a 700' hill, so The Weather is pretty accurate.

Same. You can always tell how is going to be the weather by yourself. Depending on how much time have you lived in the same place you can predict the weather for the day when you get up or, if you are a completely stranger to the environment, at least half an hour before.

Agreed. Especially the current weather conditions. That's mostly useless info. Knowing the weather forecast for tomorrow or this weekend is actually useful.

It's strange that pretty much every weather widget assumes you want to know the current weather conditions and not the forecast.