[g_sch]

The feature I miss most about Dark Sky was that it allowed you to visualize changes in dew point throughout the day.

Where I live (US East Coast), the weather can feel dramatically different depending on the humidity. Relative Humidity has always felt to me like a poor way of measuring how humid the weather will feel. For example, 50% RH at 84ºF will feel lightly humid and generally pleasant, whereas 50% RH at at 97ºF will feel like a swamp. The dew points at those respective points - 63ºF and 75ºF - do a much better job at immediately conveying how humid the air will feel.

Dark Sky used to show hourly dew point graphs that you could browse throughout the week and see when the humidity would break (or return). Apple Weather does show you the dew point, but only when you select a point on the RH graph. So to track the dew point over the coming week, you basically need to drag your finger over each day's graph and observe the changing numbers.

I think this is probably just due to the lack of general awareness about how dew point is a more elegant shorthand for "absolute humidity" than any other weather metric currently in use. I hope there will be more of us in the future!

[Leftium]

https://weather-sense.leftium.com

My web app plots hourly dew point for the next 24 hours, next 7 days, and past 2 days. (Still WIP.)

Inspired by https://merrysky.net (can also plot dew point), which was inspired by Dark Sky.

[ProxCoques]

Excellent app! And I'm sure I'm not the only one to congratulate you in showing past weather - a so obviously useful feature that 99% of all weather apps never have.

[Leftium]

Yes~ I wrote about this over ten years ago: https://blog.leftium.com/2013/12/how-to-display-temperature-...

Sadly, Naver stopped showing the past weather like that.

This was one of the main motivations for creating UltraWeather: https://github.com/Leftium/ultra-weather#readme

UltraWeather was missing some features like AQI and minutely rain predictions (coming soon!) so I made WeatherSense ^^

[simlevesque]

I like your app. I'm planning a trip next week and it was so easy to see the next few days.

[Leftium]

Great! Until UI for setting the location is implemented, you can set the location with the `n` (or `name`) URL parameter like this:

- https://weather-sense.leftium.com/?n=90210

- https://weather-sense.leftium.com/?n=new+york

[simlevesque]

You seem to know what you are doing, but I have to say that the map's colors make it really hard to see the radar data.

Also the toggle on hover for the day selection is not easy on desktop and very hard on mobile. I'd prefer a simple toggle.

[Leftium]

Thanks for the feedback.

I picked the Watercolor map style[1] because it looked pretty and the detail from other styles wasn't needed (like street names).

Then I picked The Weather Channel radar color scheme[2] because the green-to-red gradients seemed to contrast well with the Watercolor map style.

What map style/radar color scheme combination would you prefer? Perhaps I can make this configurable... (Is there any chance there simply was no precipitation on your map?)

---

I am not sure what you mean by "toggle on hover." Hover is meant to work without any toggling.

The yellow line indicates which stats are currently being shown.

Ideally, when the mouse cursor is over a timeline, it shows the stats for that time. Otherwise the stats for the current condition are shown.

Sometimes the hover is a little buggy; click + dragging on the timeline or click + dragging outside a timeline usually fixes it.

Usually it works better on mobile! If your finger is touching a timeline, that is considered hovering. Otherwise the current stats are shown.

[1]: https://stadiamaps.com/themes

[2]: https://www.rainviewer.com/weather-radar-map-live.html

[simlevesque]

No there is precipitation on the map. I'd prefer something light or dark, limited to no colors.

The new one is way better. I'd like to see the streets and city names if possible because with just the watercolor I feel like I'm missing infos.

[Leftium]

I updated the app so the map layer is now grayscale.

That should make the colored radar data easier to see!

[js2]

The NWS has local forecast graphs with dew point, temp, heat index, etc, but they are a pain to get to.

https://forecast.weather.gov/MapClick.php?lat=40.7482&lon=-7...

1. Go to https://www.weather.gov/

2. Put your zip code into the Local forecast box.

3. Click the Hourly Weather Forecast graph on the right side.

4. Bookmark it.

[deanishe]

Cool. How do I switch it to standard units?

EDIT: NVM, found it. You tap the temperature.

EDIT 2: It really ought to remember the units. 95% of the planet doesn't ever want to see Fahrenheit.

[Leftium]

You can toggle between Fahrenheit and Celsius by tapping any temperature value.

Eventually other unit types will also be implemented. URL params and cookies will also be added for persistence.

Right now, I chose to default to the most "sensible" units:

- Fahrenheit for temperature

- Millimeters per hour for precipitation

WeatherSense is still a work-in-progress!

---

Also: WeatherSense is designed to be used without numbers. Get a feel for the readings by looking at the shape of the plots and comparing to the current/past conditions.

[GrayShade]

Pretty nice app, I just have a small bug report: my location has a space in it, and it shows up as %20.

[seoulbigchris]

This is great! I live in Sacheon, and am now making this my go-to weather app.

[seoulbigchris]

I'm not seeing how to show the past weather.

[Leftium]

By default:

- The past three hours are shown in the 24 hour timeline

- The timelines for the past two days are shown

- (rendered slightly lighter/transparently)

Up to 92 past days can be shown, but this is currently hard-coded[1] and not configurable (yet).

[1]: https://github.com/Leftium/weather-sense/blob/55b505a7efae65...

[seoulbigchris]

Hmm, I'm only seeing the last hour on the timeline, and back to beginning of the current day on the date timelines.

[password4321]

Good idea! I just added humidity to my home screen widget using https://play.google.com/store/apps/details?id=com.cloud3squa...

[travisluis]

I too miss the dew point feature. The best replacement for Dark Sky I've found is this 10-day view of Weather Underground that's unfortunately only available on their website—I just bookmark the website on my phone home screen. https://www.wunderground.com/forecast/us/tx/austin/30.27,-97...

[ck2]

They are basically collapsing the weather gov plots into a single graph or two

(weather gov data is open/free, you can pull it down and plot anyway you want)

https://forecast.weather.gov/MapClick.php?FcstType=graphical...

[Izkata]

> that's unfortunately only available on their website

A very old version of their Android app had that view as a 3-day widget for the home screen. Right after it was bought they did a major upgrade and removed a ton of functionality, that widget included.

[havaloc]

https://www.windy.com/-Menu/menu?dewpoint

Windy.com to the rescue for dewpoint lovers.

[Izkata]

Dew point is on Wunderground, you have to click the "Customize" button and check the box. And yes, it does remember across visits.

[cyberpunk]

Carrot weather has dewpoint graphs (depending on source used).

[MollyRealized]

I am completely with you.

For me, I've written myself a Google Apps script - to be more accurate, AI did, but with my interaction - that e-mails a "humidity forecast" as to how wet the next six days are going to feel to me in a simple way. I don't know who came up with the categories I've placed them in - it seemed to be common weather information.

https://github.com/mollyrealized/humid-fcast/blob/main/Code....

[jachee]

Relative Humidity is directly tied to the dew point. Take a look back at the humidity forecast and look right under the humidity percentage. The dew point is there. If you tap a point in the future on the graph of forecast changes, the dew point is also registered there.

[Leftium]

- Relative humidity is also directly tied to the current temperature. (Warmer air can hold more moisture.)

- The dew point is independent from the temperature, so it is effectively a measure of "absolute humidity."

- While both measurements have their advantages, I find dew point a better indicator of the "mugginess." Also it is easier to estimate the relative humidity given the dew point vs. estimate the dew point given the relative humidity.

- You can compare both here: https://weather-sense.leftium.com (humidity plot disabled, but the value can be checked by hovering.)

[g_sch]

Yes, but what I'd really like to see is a visual graph of the dew point over the course of a day. The graph currently only shows RH%, and the only way to see how the dew point will change over the course of a day is to drag your finger over the RH% graph and watch the dew point number change.

[bsimpson]

I'm moving to NYC tomorrow, after spending my entire life on the West Coast.

Thanks for teaching me about dew point (and to the commenters below you for letting me know there's a free Dark Sky clone - merrysky.net - and a dew point graph on Weather Underground)!

[jmbwell]

Here in Houston as well, dew point is as important as temperature and %PoP. Apple Weather suffices for now but I hope it gets richer with the various types of data that are of greater relevance in different regions.