RVGE
Early access

GrimSky

Consumer

Brutally honest weather.

A weather app with an attitude. Forecast, radar, air quality, UV and activity ratings, delivered with a sarcastic one-liner. Web app, Windows and Android builds, in English and Croatian.

Join the waitlist Where it stands
Status
In development In development · 2.5.2
Version
2.5.2
Platform
Web · Windows · Android
Last work
Built with
JavaScript PWA · Electron · Android
For
Anyone who checks the weather every day and would like it to have a personality.
GrimSky forecast panel: an hourly temperature curve peaking at 31 degrees, the next hours from 03:00 to 09:00, and a seven-day outlook.
Real capture Forecast panel from the 2.5 desktop build, cropped.
01 What it does Verified in the source

What GrimSky does

01

Forecast you can read

Hourly and seven-day forecasts with an animated temperature curve.

02

Everything outside

Radar, air quality, UV, humidity, wind, pressure, visibility, sunrise, sunset and the moon.

03

Should I go out?

Ratings for running, cycling, hiking and stargazing for the next few days.

04

Home-screen widget

The Android build carries a widget. English and Croatian throughout.

02 Good to know Plainly

Where your data goes, and what to expect.

The humour is deliberately rude, with the strong words censored.

Forecasts are third-party data. Do not use them for safety-critical decisions.

03 Status In development · 2.5.2

What is still missing.

This list is the work between today's build and a version anyone can rely on. It gets shorter, it is never hidden.

  • A real Pro entitlement. Current builds unlock Pro for everyone.
  • Production ad configuration and signed releases.
  • A commercial weather-data plan. Forecasts come from Open-Meteo, which is free for non-commercial use.
  • A privacy policy and store listings.
04 Release history

Recent changes.

  1. Release

    GrimSky · v2.5.2

    Builds 2.5.0 to 2.5.2

    A new animated forecast graph, with Windows and Android builds produced for testing. Not released as a product.

    Source · Build GrimSky-Weather-Widget-2.5.2-x64.exe, 17.09.2026

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