You may have seen discussion of this recently over at Avsim but, if you haven’t, the 2d weather radar for use with Active Sky Next by Bryn Battersby is getting some very good reviews and comments from users.
The author writes; “Because the HiFi hook collects data on cloud positions and writes precipitation to match those positions, the radar returns are seamlessly integrated with the weather in the simulator.
The gauge is free, or you can pay what you reckon it’s worth. It’s available at gum.co/bryn.”
More details on the gauge, which works in both FSX and P3D, can also be found at the relevant thread on the Avsim forums, here.