With the summer heat in full force, and with droughts impacting so much of the United States, these resources might be useful.
This great dynamic map shows monthly mean temperatures worldwide.
In the first place, this handy heat index calculator let's you figure out how warm, exactly, the heat index is where you are.
Also, though I posted it earlier, the US Drought Monitor is a good resource for keeping up with the dry conditions in the United States:
Finally, in contrast to the Drought Monitor, this is an excellent tool allowing you to tap into the readings of river water gauges all across the United States. Tidal waters are rather easy to notice: