Guys and gals....after doing some research, I agree with RockinX.
A 10% chance of rain for Borrego Springs isn't likely any rain will fall in the Truckhaven area. I went out and ran Sandstone Canyon when it was storming in San Diego/snowing in Julian. Outside of a few clouds and some chilly wind, the desert was beautiful.
Also, if you go out and it does sprinkle...run something else! Head south through Arroyo Salado to the Pumpkin Patch and check that out...or head down to Ocotillo Wells and cruise some of the trails there. Explore!
This is the weather of the desert season...the worst day in the desert is better than the best day behind the desk!!