I want to create one but have no clue how.
How do you plan to receive the data from the sensor?
Using a 433mhz receiver. Please note I have absolutely no experience with that stuff but should be fun to try.
Many 433 MHz weather sensors, including some from Acurite, have been decoded for Arduino. Check whether the one you are interested in is among them.
The relevant links are in this thread: https://forum.sparkfun.com/viewtopic.php?t=34834
A general approach to decoding an unknown sensor can be found here: Reverse Engineer Wireless Temperature / Humidity / Rain Sensors — Part 1 « RAYSHOBBY.NET
Hi, @aw98
Welcome to the forum.
https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum
What is an acurite sensor?
Can you please post a link to data/specs of the sensor?
What model Arduino are you going to use?
Tom... 
Any Arduino will work. The Uno R3 is a good choice.
Thanks for your help everyone. I'm wondering if a knockoff board will work for my experiment since I'm so new to this.
This is a very difficult project for a complete beginner.
oh I'm sure. you think I should attempt?
probably, but buy several!
Well, why not. Just be in for a VERY steep learning curve.
Start with the Arduino basics. Learn how to program the board, how to work the IDE, how to write a basic C++ program, how to make an LED blink. Go from there.
So i just copied somebody's code o the ide for the transmitter and it compiled nicely.
So will try to transfer it to a cheap Uno R3 and see what it will do
I'm wondering what the biggest screen is i can add and if i can have a 433 MHz receiver and an lcd on the same Arduino
In resolution: depends on how you're driving it and the exact display you're working with, and expected refresh rates, etc. Capabilities of the Arduino are limited.
Physical size: no limit from the Arduino's perspective.
Thank You.
Can you point my to a simple coloured screen about 4- 5 inches that would work?
Adafruit has a good selection, and they all work.
it compiled nicely.
Great! The next step is to get correct data from the sensor printed on the serial monitor.
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