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OS Weather project artwork

Modrinth · Minecraft mod

OS Weather

A dynamic, localized weather and atmospheric simulation system for Minecraft.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which OS Weather release should I use?

Updated today
Latest stable file 1.1-mc26.3-neoforge
Game version 26.3
Loader NeoForge

OS Weather 1.1-mc26.3-neoforge targets 26.3 with NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.

Where it goes

Is OS Weather required on the client, server, or both?

Installation on the client is optional. Installation on the dedicated server is optional.

Client Optional
Dedicated server Optional
Loader for this release NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source marks this as usable on both the client and server.

Understand client and server requirements Read the Minecraft installation guide

What else does OS Weather 1.1-mc26.3-neoforge need?

1.1-mc26.3-neoforge. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add OS Weather without breaking your instance.

Built for OS Weather 1.1-mc26.3-neoforge. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use 1.1-mc26.3-neoforge. It targets 26.3 with NeoForge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    Installation on the client is optional. Installation on the dedicated server is optional.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside 1.1-mc26.3-neoforge. It opens that exact file at the source.

About this project

What does OS Weather add?

🌦️ OS Weather

A dynamic and localized weather experience for Minecraft.

Minecraft Versions Fabric NeoForge V1.0

Discord CurseForge Projects Modrinth Projects

About

OS Weather transforms Minecraft's Overworld with a dynamic, localized atmospheric simulation.

Instead of a single global weather state, different regions experience their own conditions influenced by biomes, temperature, humidity, pressure and wind.

From clear skies and rainfall to snowstorms and extreme weather, the atmosphere evolves naturally as you explore.

One world. Different climates. A living atmosphere.

✨ What It Adds

  • Localized weather across different regions and players
  • 47 climate-weighted atmospheric scenarios
  • Rain, snow, thunderstorms, fog, sandstorms and blizzards
  • Dynamic temperature, humidity, pressure and wind
  • Smooth weather transitions between regions
  • Persistent atmospheric conditions across sessions
  • Server-controlled simulation with multiplayer synchronization
  • Customizable clouds, precipitation, fog, particles and sounds
  • Live server configuration and administrative weather commands
  • Public developer API with custom weather overrides
  • Optional API-Only Mode without the built-in simulation
  • Support for Fabric & NeoForge across six Minecraft/loader combinations

⚙️ Configuration & Commands

Customize client visuals and server weather behavior through configuration files or the optional in-game settings interface.

Commands: /osweather status, /osweather info, /osweather set, /osweather clear, /osweather reload

Vanilla /weather commands are also integrated.

📦 Compatibility

Minecraft: 1.21.1 / 26.2 / 26.3
Loaders: Fabric & NeoForge
Java: 21 (1.21.1) / 25 (26.2–26.3)
Fabric API: Required on Fabric
Cloth Config & Mod Menu: Optional
Environment: Singleplayer & Multiplayer
License: All Rights Reserved

Install the JAR matching your Minecraft version and mod loader.

V1.0 Note: Some advanced visual effects and compatibility testing are still being refined. See the wiki for current limitations.

📖 Documentation & Support

➜ Official OS Weather Wiki

Report Bugs & Suggest Features • Join our Discord

💙 Support the Project

Enjoying OS Weather? Help support future updates and upcoming Our Story Collection projects!

Patreon Discord

💖 Support us on Patreon • 💬 Join our Discord community

🖥️ Game Hosting

Planning a Minecraft adventure with friends? Host your server with our official partner, BisectHosting!

🎁 Get 25% OFF with promo code OURSTORY.

➜ Get your Minecraft server with BisectHosting — 25% OFF

Every purchase through our partner link helps support future Our Story projects.

🌍 Explore More Our Story Projects

Discover more Minecraft mods and modpacks developed by LevelsFR and the Our Story Collection.

CurseForge Modrinth

Explore on CurseForge • Explore on Modrinth

Created by LevelsFR

Part of the Our Story Collection

CurseForge • Modrinth • Discord • Patreon • Ko-Fi

Project description from Modrinth.

Pick your setup

OS Weather by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

6 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

OS Weather versions and loaders

12 of 12 releases match

Looking for an older file? The official Modrinth project page is in Resources.

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