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Daily weather forecast to Slack, Telegram or email

Send a forecast for any location to your team every morning with the free Open-Meteo API. No API key, no account.

Example: a morning forecast in Slack

json
{
  "name": "Site weather",
  "cron": { "expression": "0 6 * * 1-5", "time_zone": "Europe/Madrid" },
  "nodes": [
    { "id": "forecast", "open_meteo_forecast": { "latitude": "40.42", "longitude": "-3.70" } },
    { "id": "post", "slack_send_message": {
        "webhook_url": "https://hooks.slack.com/services/T000/B000/XXXX",
        "text": "Madrid today: {{ $.daily.temperature_2m_min[0] }}–{{ $.daily.temperature_2m_max[0] }}°C, {{ $.daily.precipitation_sum[0] }} mm of rain. Now {{ $.current.temperature_2m }}°C, wind {{ $.current.wind_speed_10m }} km/h." } }
  ]
}

Example: tomorrow's forecast by text

json
{
  "name": "Tomorrow's weather by SMS",
  "cron": { "expression": "0 20 * * *", "time_zone": "America/Phoenix" },
  "nodes": [
    { "id": "forecast", "open_meteo_forecast": { "latitude": "33.45", "longitude": "-112.07", "units": "imperial" } },
    { "id": "sms", "twilio_send_sms": {
        "credential_id": "YOUR_TWILIO_ACCOUNT_ID",
        "to": "+15551234567",
        "from": "+15557654321",
        "body": "Tomorrow in Phoenix: high {{ $.daily.temperature_2m_max[1] }}°F, low {{ $.daily.temperature_2m_min[1] }}°F." } }
  ]
}

daily lists start with today, so [1] is tomorrow and [2] the day after.

Reference

Get a weather forecast from Open-Meteo: open_meteo_forecast

Sends GET https://api.open-meteo.com/v1/forecast for current conditions and a 3-day daily forecast. No API key. Output for the next step: current (temperature_2m, relative_humidity_2m, weather_code, wind_speed_10m) and daily lists for today and the next two days (time, weather_code, temperature_2m_max, temperature_2m_min, precipitation_sum), in the location’s local time.

Field Type Notes
latitude string, required Decimal degrees, -90 to 90, such as "45.52".
longitude string, required Decimal degrees, -180 to 180, such as "-122.68".
units string Omit or metric for °C, km/h and mm. imperial for °F, mph and inches.

weather_code is a WMO code: 0 is clear sky, 61–65 rain, 71–75 snow, 95 thunderstorm.