Here's a Snapshot of the weather here ATM. The unit is saying part sun & cloud as the trend, which is exactly what's happening. I did have an initial problem with the wind direction sensor, but this seems to have sorted itself after I reinitialised the unit. I suspect the outdoor TX does a calibration and I didn't have the sensor plugged in when I first did it. FWIW it seems that the unit can draw power from the USB connection so Battery life may be even better with the USB connected. So far, I'm super impressed. I'm very tempted to give the outside components a coat of good quality marine paint to protect the plastic from the elements. I also forgot to add that you can set alarm both high and low for pretty well everything.