Ambient Temperature
⚪ Last updated 2010⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 4.3% endorsement rate — high engagement, a strong quality signal
- 🏆 #206 of 420 Gameplay Effects and Changes mods in this game by downloads
📋 About This Mod
This mod creates an ambient air temperature global based on month, time of day, location, and some randomness. An optional .esp will display that temperature on your HUD in either Fahrenheit or Celsius. The .esm that adds the temperature global does not require FOSE, but will not display the temperature, and is meant purely as a resource for other mods. If you are using FOSE, you can also use the optional .esp file to display the current air temperature on your HUD, adding to immersion. Temperatures are based on DC area weather statistics pulled from weather.com. Apart from some added immersion, this mod can be used to enhance any mod where temperature might come into play. Just add the .esm to your load order, include it as a master for your mod (similar to using CRAFT or CALIBR), then use the AmbientTemperature global in your scripts (read only please). Some ideas: In a basic needs mod, rate of dehydration could be increased on hot days. In a weapons overhaul, higher temperatures mean less dense air, leading to better range and higher damage (though I\'m not sure how you would implement that). In my Powered Power Armor mod, ambient temperature will effect the heating and cooling effects of power armor. In a weather mod, it could be used to determine whether it rains or snows. There are a couple of visual effects that I\'d love to add - heat haze above the ground, and frosty breath on cold days (though apparently it\'s based on humidity as much as temperature, so I\'ll maybe need to throw that in as well.) I\'m considering making a mod that adjusts NPCs apparel to reflect the weather - Raiders would wear Iconoclast or Raider Combat Armor when its cold, etc. I\'d try to beg, borrow, steal, or maybe even create Tenpenny, Talon Company, and Ranger reskins of the winterized combat armor. Other NPCs, the ones in Merc outfits, would stick to Charmer and Troublemaker armors when its cold, and grunt outfits when its hot. LIST OF COMPATIBLE MODS In the future, this section will list any mods that make use of Ambient Temperature. For now, these are just mods that I\'m planning to integrate this into via an optional compatibility patch. Powered Power Armor http://www.fallout3nexus.com/downloads/file.php?id=13361 Effects upper and lower power armor servo temperatures. Imp\'s More Complex Needs http://www.fallout3nexus.com/downloads/file.php?id=11418 Effects the rate of dehydration.
Ambient Temperature adds a dynamic global air temperature system to Fallout 3, influenced by month, time of day, location, and randomness. An optional ESP displays the current temperature on your HUD in Fahrenheit or Celsius. This mod enhances immersion for players seeking environmental realism.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community favorite with 537 endorsements and over 12k downloads.
- Adds a layer of environmental realism that makes the wasteland feel more alive.
- HUD display option is handy for tracking temperature without opening menus.
⚠️ Cons
- Last updated in 2010 — likely outdated for modern Fallout 3 setups.
- Temperature is purely cosmetic; doesn't affect gameplay mechanics like survival.
For Fallout 3 roleplayers who want a subtle immersion boost and enjoy tracking environmental details. Skip if you're looking for gameplay-changing survival mechanics — this is purely atmospheric.
💡 Beginner Tips
- If you're using a mod manager like FOMM, just drop the files into your Data folder and activate the ESP.
- Choose the Fahrenheit or Celsius ESP based on your preference — only one should be active.
- Since the mod is from 2010, test it early in your playthrough to ensure it doesn't conflict with other weather mods.
📊 Mod Details
- Game
- Fallout 3 Mods
- Author
- ImpOfThePerverseMods
- Version
- 1.0
- Downloads
- 12,589
- Endorsements
- 537
- Category
- Gameplay Effects and Changes
- Created
- 7/5/2010
- Updated
- 8/22/2010
🔧 How to Install Fallout 3 Mods
Download from Nexus.
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