I don't have a weather problem. I just can never get passed the glare on my screen... cartography is hard when you can't see shit.
Ive got a big patio umbrella that helps with that a bit...
Have seriously thought about adding an an actual roof and converting some of the back patio into a screened in porch though.. would be a little cooler in the summer (shade).. and cut down on the glare..
The front porch has a nice roof/overhang though and is pretty much shady all day after about 10AM... when the glare is especially bad on the back patio.. I just transition to the front