{"id":1721,"date":"2014-03-25T12:36:11","date_gmt":"2014-03-25T12:36:11","guid":{"rendered":"http:\/\/dollarunderscore.azurewebsites.net\/?p=1721"},"modified":"2017-06-05T20:58:28","modified_gmt":"2017-06-05T18:58:28","slug":"checking-the-weather-with-powershell","status":"publish","type":"post","link":"https:\/\/p0wershell.com\/?p=1721","title":{"rendered":"Checking the weather with PowerShell"},"content":{"rendered":"

As a part of my home automation project I wanted to be able to check the weather, and since I’m trying to do as many parts of the automation as possible with PowerShell, I needed to write a cmdlet for this. But where to get the data?<\/p>\n

I was very happy to find out that the Swedish Meteorological and Hydrological Institute (SMHI) actually has a published API<\/a>, open and free to use!<\/p>\n

The API is very simple, after you send a request with longitude and latitude it sends back a json-object with weather data for that location (tagged with the location of the closest weather station used for the report) for up to 10 days.<\/p>\n

Note: As a visitor pointed out in the comments, SMHI does not have weather data for all countries, I’ve tested a couple of locations in Europe which seems to work fine though. You will get a “error 400 bad request” error if the location is out of scope.<\/p>\n

The cmdlet does some small changes to the returned object (expands a few properties and changes some shortnames to something that is easier to understand, converting some values to percentages and so on…) and returns each forecast as a separate object. The forecasts can cover anything from 1 hour to a day or so, so make sure you check the start\/end dates.<\/p>\n

This is how Get-SMHIWeatherData looks in action:
\n\"SMHIWeather\"<\/a><\/p>\n

The code for this cmdlet is available here<\/a>. (Updated 2016-10-24)<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

As a part of my home automation project I wanted to be able to check the weather, and since I’m trying to do as many parts of the automation as possible with PowerShell, I needed to write a cmdlet for this. But where to get the data? I was very happy to find out that […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[621,231,21],"tags":[651,661,631,641],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p3Zj0A-rL","_links":{"self":[{"href":"https:\/\/p0wershell.com\/index.php?rest_route=\/wp\/v2\/posts\/1721"}],"collection":[{"href":"https:\/\/p0wershell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/p0wershell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/p0wershell.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/p0wershell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1721"}],"version-history":[{"count":0,"href":"https:\/\/p0wershell.com\/index.php?rest_route=\/wp\/v2\/posts\/1721\/revisions"}],"wp:attachment":[{"href":"https:\/\/p0wershell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/p0wershell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/p0wershell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}