Last updated: May 18, 2026
CalendarWeather is a free service that delivers a 7-day weather forecast directly to your phone's calendar as a live subscription feed. The service is operated by Jason Barnes ("we," "us," "our").
CalendarWeather is not intended for use by anyone under the age of 18. By using this service, you confirm that you are at least 18 years old. We do not knowingly collect information from anyone under 18. If we become aware that a user is under 18, we will delete any associated data promptly.
When you subscribe to a CalendarWeather feed, we collect the following:
Location data: Your approximate geographic coordinates (latitude and longitude), city, and state. This is collected via your browser's geolocation API, which requires your explicit permission. We use this solely to generate a weather forecast specific to your area.
Subscriber ID: A randomly generated identifier (not tied to your name, email, or any personal account) used to serve your personalized feed.
Feed fetch logs: When your calendar app polls our server for updated weather data, we log the timestamp and user agent string. This helps us understand how many active subscribers we have and troubleshoot technical issues.
We do not collect your name, email address, phone number, IP address, payment information, or any other personally identifiable information. There is no account creation, no login, and no registration form.
Your location data is used exclusively to fetch weather forecasts from Open-Meteo (a free, open-source weather API) and deliver them to your calendar. Subscriber IDs and fetch logs are used for aggregate analytics (total subscriber counts, active user metrics) which may be shared with potential advertisers as anonymous, aggregate statistics only.
Your calendar subscription includes one sponsored event per week (appearing on Mondays). This is how we keep the service free. Sponsored events are the same for all subscribers in a given region and are not personalized based on your behavior or browsing history. We may use your state-level location to show regionally relevant ads, but no individual targeting is performed.
We use the following third-party services to operate CalendarWeather:
Open-Meteo — provides weather forecast data. Your coordinates are sent to their API to retrieve forecasts. Their privacy policy is available at open-meteo.com/en/terms.
OpenStreetMap Nominatim — provides reverse geocoding (converting your coordinates to a city/state name). Their usage policy is available at osmfoundation.org.
Supabase — hosts our database. Data is stored in the United States.
Netlify — hosts our website and serverless functions. Their privacy policy is available at netlify.com/privacy.
Your subscriber data and location information are retained for as long as your calendar subscription is active. If your calendar app stops polling our feed for more than 90 days, we may delete your subscriber record. Feed fetch logs are retained for up to 12 months for analytics purposes.
You can unsubscribe from CalendarWeather at any time by removing the calendar subscription from your phone's calendar app. Once unsubscribed, your calendar app will stop fetching data from our servers. If you would like us to delete your subscriber record, contact us at the email below.
We use industry-standard security measures including HTTPS encryption for all data transmission and secure database hosting. However, no method of electronic transmission or storage is 100% secure, and we cannot guarantee absolute security.
We may update this privacy policy from time to time. Changes will be reflected by updating the "Last updated" date at the top of this page. Continued use of the service after changes constitutes acceptance of the updated policy.
If you have questions about this privacy policy or your data, contact us at privacy@calendarweather.com.