ModsFinder

WeatherPhysics

by Tornadosdani1

WeatherPhysics replaces vanilla weather with volumetric clouds that form, grow and dissipate, and storms that can drop hail and lightning.

NeoForgeClient and serverMIT License1.21.1

What it does

Clouds in WeatherPhysics grow horizontally and vertically over time. Some dissipate on their own, while others evolve into large convective Cumulonimbus storms. Rain is drawn directly beneath each individual cloud and follows its shape, size and movement, so weather no longer covers the whole world at once.

Hail spawns inside storm clouds and falls with bounce physics before striking the surface, with custom sound effects. Hail can damage mobs and players. Lightning is generated within storm structures as branching bolts and thunder. A real-time weather radar on the HUD tracks storm movement and cloud formations relative to the player, and can be zoomed with the mouse.

The mod is published for NeoForge and 1.21.1 only, with the latest file 0.0.6 for 1.21.1 in the beta channel. Servers that run it need every player to install it too. It is released under the MIT License and is not open source.

Key features

  1. Volumetric clouds

    Clouds grow, shrink and move in three dimensions, with some dissipating and others building into storm systems.

  2. Physics-based hail

    Hail falls from storm clouds, bounces on impact with the ground and carries custom sound effects.

  3. In-cloud lightning

    Branching lightning bolts and thunder are generated within storm structures as the weather evolves.

  4. Interactive weather radar

    A HUD radar shows storm movement, cloud formations and the player's position, with mouse zoom.

Compatibility

Latest build for each game version and loader.

No stable releases
Every published file is a beta or alpha build.
1.21.10.0.6
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

Simple Clouds is a NeoForge and Forge mod for 1.20.1 – 1.21.1 with a custom license, optional on either side and not open source. PMW Radar Overhaul! is a NeoForge mod for 1.21.1 that runs on the client only and is released under the MIT License, not open source. WeatherPhysics instead replaces vanilla weather and needs the server and clients to run it.

ModLoadersGame versionsEnvironmentUpdated
WeatherPhysicsNeoForge1.21.1Client and server2026-10-12
Simple CloudsForge and NeoForge1.20.1 – 1.21.1Client or server, optional2025-08-26
PMW Radar Overhaul!NeoForge1.21.1Client-side only2026-02-19

Questions

Does WeatherPhysics need to be installed on the server?

Yes. A server running it needs every connecting player to have it too.

Which loader and version does WeatherPhysics support?

It is published for NeoForge on 1.21.1 only. The latest file is 0.0.6 for 1.21.1, in the beta channel.

Can hail and lightning be turned off?

The author text describes hail and lightning as part of the storm system; the available options are not listed on the Modrinth page.

In the catalog

WeatherPhysics is one of 8,515 World generation mods on ModsFinder, and one of 4,175 World generation mods for NeoForge. 32,366 mods support Minecraft 1.21.1.

World generation mods8,515NeoForge modsMods for 1.21.132,366

Similar mods

Biomes O' Plenty1.7.10 – 26.3Cobblemon1.19.2 – 1.21.1Terralith1.18.2 – 26.3YUNG's Better Nether Fortresses1.18.2 – 26.1.2Dungeons and Taverns1.19 – 26.3Yeetus Experimentus1.18.2 – 26.3

What the author says

WeatherPhysics completely overhauls Minecraft's weather engine by introducing dynamic volumetric clouds, autonomous storm lifecycles, and realistic weather physics. Rather than relying on global vanilla weather, storms in WeatherPhysics form, evolve, and dissipate naturally in real time.
Tornadosdani1, on the Modrinth page

Official listing

Owner
Tornadosdani1
Published
2026-08-19
Updated on Modrinth
2026-10-12
Facts verified
2026-10-15

Tags

Game mechanicsUtilityWorld generation
Open on ModrinthCompare