open up the CK, load Skyrim.esm and my Test1.esp mod. Go to the object window, and under WorldData click on Weather. In the list you will find the two new weathers called "SkyRealClear01TU" and "SkyRealClear02TU". What I want you to do first is to look at the form ID and write it down (it stands right next to the weather ID - the name which you can see in the list in the object window). Then tell me here in this thread what form ID you saw for the two new weathers.

now that you've done that, close the CK (don't save the Test1.esp, just quit the CK), tick the Test1.esp and have it load last. If you have a weather mod (like more snow, more rain, climates of tamriel), then you should disable that .esp temporarly, just for this little test.
Next, start the game and make sure you're in an exterior cell.

Open up the console and type:
"fw 01000D62" without the quotation marks. Close the console and wait a few seconds.
After a few seconds type "fw 01000D63" without quotation marks again. I want you to take notice if you see any change in the weather when you do this.
If 01000D62 and 01000D63 were the same form IDs for the two weathers you saw in step 1 when you looked in the CK, then you don't need to do anything more in this step. If however the form IDs you saw in the CK in step 1 were different than 01000D62 and 01000D63, then I want you to do the same procedure with those two form IDs you saw in the CK. Simply open up the console and type "fw formID" without the quotation mark and of course insert the formID you saw.

the third step is a little different. Here I want you to use a third party program to open up the Test1. esp and do the same thing you did in step 1 (simply look at the form ID of the weather and write it down in this thread). Now, I'm not sure if there is a third party program that can do that yet. I know that TES5Edit will be able to do it, but that's not available yet. That's why this step is a little different. If you know a third party program that can open up .esps and look at them, then please tell!

this step is a little overkill, but it would help A LOT if you decide to do it. What I want you to do is to create your own two test weathers as I did, which is very easy to do. Open up the CK with just Skyrim.esm ticked and nothing else, then go to the Weather list in the object window under WorldData.

First, right click on this list and create a new weather and then press OK (you don't have to edit the weather at all). The weather you just created should become visible at the top part of the Weather list and have no name (have a blank weather ID). To change it to a name, simply right click on the Weather in the object window and then left click on it (then wait a second), and you should be able to change the weather name to whatever you want.

Second, duplicate an existing vanilla weather by right clicking it (I recommend duplicating a vanilla thunderstorm weather, because that's very easy to spot in-game). Change it to a name you want like the first one. Once you've done this, simply look at the form IDs and write them down. Then save the .esp, tick it, and make sure it loads last. After that, go in-game like in step 2 and force your weathers (using the "fw formID" command) just like you did in step 2, but this time you of course use the form IDs for the weathers you just made.

Also, in this thread I want you to write down the form IDs for the weathers you just made. I would also appreciate if you upload the .esp you just made to http://www.filefactory.com/ (it's free, fast, easy safe and you don't have to register) and write down the download link in this thread so I can take a look at it.