Rick Flair 
ARC Raiders Weather Monitor System Project Guide Quick Summary:
- Stage One: Plastic Parts x25, Metal Parts x15, ARC Alloy x5, Oil x3.
- Stage Two: Snitch Scanner x1, Wires x3, Sensors x3, Comet Igniter x1.
- Stage Three: ARC Powercell x5, Canister x5, Steel Spring x5, Fine Wristwatch x1.
- Stage Four: Duct Tape x10, Rusted Bolts x3, Water Pump x1, Wasp Driver x3.
- Stage Five: Camera Lens x3, Damaged Heat Sink x1, Firefly Burner x1, Voltage Converter x3.
- Rewards for all stages are: Durable Cloth, Great Mullein, Antiseptic, Vita Shot, Gun Parts, Advanced Mechanical and Electrical Components, Showstopper, Trailblazer, Explosive Compound, Medium Shield, Blue Shield Recharger, Sterilized Bandage, and Tactical Mk. 3 Revival augment. You also get a Renegade III and an Extended Barrel mod.
- Completing all stages rewards you with the Anemometer charm and Raider Coins x250.
The Weather Monitor System requires you to get the parts of the new ARCs. One thing about them is that they have strong armor, so only heavy ammo weapons can deal with them. If you don’t have access to an Anvil or, ahem, Bettina in your inventory, try our ARC Raiders Blueprints and be able to craft as many as you like.
Read closely 
ARC Raiders Weather Monitor System Materials List
As always, there are five project stages that you need to complete. Unlike the Trophy Display project, which requires you to farm progressively more difficult ARCs, this project is much, much simpler. I’d argue you can complete it in a week, if not less. Depending on how much free time you have. You get rewarded with a unique Anemometer charm and 250 Raider Tokens upon completion.
Some of the harder-to-find materials that you need for this project are Fine Wristwatch, Steel Springs, Comet Igniter, Water Pump, and Camera Lens. If you find them before the stage where you need them, be sure to store them for later.
In this article, I’m using an infographic made by u/gifv_Kayla, taken from this Reddit post. If you find this graphic handy, go say thank you.
Stage One
Alright, stage one is so simple, I finished it in mere seconds, and I haven’t been playing the game for quite some time. All the parts you need for it are quite widespread, with ARC Alloy being the only one you can’t buy from Celeste.
- Plastic Parts x25
- Metal Parts x15
- ARC Alloy x5
- Oil x3
I don’t think there should be any problem with completing this stage. If you’re a new player, you can buy Oil, Plastic & Metal Parts from Celeste in Speranza. ARC Alloy can only be scavenged in the field from any destroyed ARC, ARC Husks, or ARC Probes.
|
Materials |
Where to Get |
|
Plastic Parts x25 |
Anywhere or buy from Celeste |
|
Metal Parts x15 |
Anywhere or buy from Celeste |
|
ARC Alloy x5 |
ARC enemies, ARC Husks, ARC Probes |
|
Oil x3 |
Mechanical areas, such as Water Treatment on the Dam, but I recommend just buying it from Celeste. |
The first stage rewards you with Durable Cloth x5, Great Mullein x5, Antiseptic x5, and Vita Shot x3. All of these are very nice for crafting healing items.
Stage Two
Stage Two is also quite simple and doesn’t require any hard-to-get parts. There is an ARC part that can only be looted from the new Comet ARC. You can find this new Pop 2.0 on the Dam Battlegrounds during the Hurricane map condition most easily. They appear on other maps as well, though. Comet commonly guards Boss ARCs like Bastion, but you can find it mostly anywhere. Here are all the materials needed for the completion of the second stage of the Weather Monitor System:
- Snitch Scanner x1
- Wires x3
- Sensors x3
- Comet Igniter x1
To get the Comet Igniter, it is essential that you destroy the ARC and don’t let it explode, as in this case, the Igniter will not spawn. Comet has heavy armor protection, but it opens its core when it starts rushing at you, so you can play it safe and take it down with grenades from afar or take a risk and use high armor pen weapons.
|
Materials |
Where to Get |
|
Snitch Scanner x1 |
Destroying a Snitch |
|
Wires x3 |
Wires are easy to find in Electrical or Technological areas of the map, or you can just hop on Stella Montis. You’ll surely find enough of them there. |
|
Sensors x3 |
Any server-looking things that you have to pry open with your raider tool. I usually look for them in the Departure Building on Spaceport. |
|
Comet Igniter x1 |
Only gettable if you destroy the Comet without letting it explode. |
The rewards you get for completing stage two are Processor x10, Advanced Electrical Components x5, Zipline x3, and one Raider Hatch Key. You can craft shields with these materials.
You got -20% OFF 
Stage Three
This stage is simpler to complete, at least because it doesn’t require you to get the new ARC parts. You’ll need to destroy 5 ARCs to get their Powercells. Steel Springs can be easily recycled from certain items, and Canisters are recycled from explosives. The hardest part here is getting the Fine Wristwatch, since it’s a Trinket with a random spawn.
- ARC Powercell x5
- Canister x5
- Steel Spring x5
- Fine Wristwatch x1
And here’s how you can get these materials and ARC Parts:
|
Materials |
Where to Get |
|
ARC Powercell x5 |
I recommend taking out Fireballs or Pops, as they always have a power cell on them. |
|
Canister x5 |
While you can buy them from Celeste, you can also get them by recycling Smoke Grenades or Bicycle Pumps, which are pretty common loot. I don’t find Canisters just lying around often, though. |
|
Steel Spring x5 |
You can get them from Celeste or by recycling them from Cooling Coils or Spring Cushions. Both can be found in the Testing Annex on the Dam pretty easily. |
|
Fine Wristwatch x1 |
You can get it from Commercial or Residential areas. I found them quite frequently in Pale Apartments and Ruby Residence on Dam, but you can also get them from Village on Blue Gate or Grandioso Apartments on Buried City. |
The rewards you get for completion of this stage are much more pleasant and consist mostly of gun materials. You get Medium Gun Parts x3, Complex Gun Parts x2, Advanced Mechanical Components x3, and one third-level Renegade.
Stage Four
To be honest, I think this project is more of a gift for raiders, as it’s so easily completable. Compared to the previous project, this one is almost a free giveaway. You need the following materials to finish it:
- Duct Tape x10
- Rusted Bolts x3
- Water Pump x1
- Wasp Driver x3
See what I mean? All of these are really easy to get, except for maybe Rusted Bolts. See where to get those materials below:
|
Materials |
Where to Get |
|
Duct Tape x10 |
You can buy some of them from Celeste or recycle them from most 2nd and 3rd-grade weapon mods. I know you have tons of goop lying around, so don’t be greedy. |
|
Rusted Bolts x3 |
Can be easily found in Industrial and Mechanical. Perhaps it’s the most frequently spawning item in these zones. However. I wouldn’t be surprised if the devs would trim down the spawn rate so that the project wouldn’t be completed faster. |
|
Water Pump x1 |
Get those on Dam Battlegrounds, in Water Treatment Control, or Power Generation Complex. Yeah, they spawn there too, specifically in the shaft area, which you can access from above, south of the Extraction point. |
|
Wasp Driver x3 |
Destroy 3 Wasps, nuff said. |
The rewards for completing stage 4 are Explosive Compound x10, Showstopper x3, Trailblazer x3, and Extended Barrel x1.
Stage Five
And this is where things finally start getting interes… No, I’m kidding. It’s another simple stage, but at least you need to get a part from a new ARC, Firefly. Getting this part is much easier than getting the Comet Igniter, though it can still be really painful and even lead to a raid fail.
- Camera Lens x3
- Damaged Heat Sink x1
- Firefly Burner x1
- Voltage Converter x3
So, Firefly. It can be found on all maps, patrolling the skies along with other flying ARCs. It has a flamethrower that melts your armor and health really fast. It’s heavily armored, even heavier than Hornet. You need to destroy its thrusters. Two are usually enough.
|
Materials |
Where to Get |
|
Camera Lens x3 |
I recommend looting Stella Montis or the underground Blue Gate, as Camera Lens is often found in Security areas. |
|
Damaged Heat Sink x1 |
Just like Sensors, this one can be found in Server racks all over Topside. |
|
Firefly Burner x1 |
Destroy Firefly. Take heavy ammo weapons to deal with it faster and safer. |
|
Voltage Converter x3 |
Repeat it with me: You can buy it from Celeste. You can also find them in power shields that you pry open. Usually not far from the Server racks. |
The rewards for the final stage are Medium Shield x1, Surge Shield Recharger x5, Sterilized Bandage x3, Tactical Mk. 3 (Revival) x1. And that’s about it for all the Stages. Seems pretty easy. Don’t forget that this isn’t a time-limited project, so you can finish it any time after you finish preparation for the second Expedition.
Read our other ARC Raiders guides:
F.A.Q
What is the Weather Monitor System Project in ARC Raiders?
It’s a new project available for players that rewards them upon completing each of the five stages, and gives a big reward for completing all of them.
Is there a time limit or end date in ARC Raiders for Weather Monitor System project?
No, the event is not time-limited and will stay in the game forever.
How many stages are there in the Weather Monitor System Project in ARC Raiders?
There is a total of five stages, each requiring its own materials to complete.
What do you get for completing ARC Raiders Weather Monitor System stages?
Various rewards, including healing items, explosives, weapon materials and mods, among other things.
What’s the fastest way to progress ARC Raiders Weather Monitor System project?
The biggest advice I can give you for completing the project faster is to always target specific materials needed for its completion. If you are laser-focused on getting them specifically, you’ll finish the project in a couple of days.
Will my ARC Raiders project progress be reset after an Expedition?
No. As devs stated, Expedition wipes do not reset your project progress, so if you stopped at stage three before the Expedition, you’ll be there even after you’ve reset your character.
