There's a ton of stuff, both apps and devices, that can alert you to temperature set points. You're not trying hard..

Could you show me the error of my ways? Offer a suggestion? I really did a lot of searching...

It seemed really cold tonight so I covered the plants needing it.

I just checked and there is a freeze warning tonight. The Google weather I had checked said 37F would be the low but it's steered me wrong before.

jay, here's a link the the National Weather Service Alert Services page. I have not gone through all the links but maybe you will find something here that will work for you. Have you been to this site already?

34 in my yard this morning, 48 under the frost cloth with christmas lights.

Here is a link that might be useful: NWS

I'd love an alert too, so if anyone finds/knows of something please post. :)

I had to sit through several minutes of one of those dumb shows on the Weather Channel (which used to just have weather, which I love watching) to see a tiny strip at the bottom saying "freeze warning". I need something more proactive than that, LOL.

Happy gardening all!
Grant

On the app thing...I just replaced our roof and my wife got an iPhone app to send weather alerts but it didn't really warn me about rain. I don't know the name of the app, she's asleep. Not sure I'd trust an app too much.

I've been liking Weather Underground.They seem to have a few weather reporters within a few blocks of my house...reporting 31,32 and 33F right now. Ouch!

wunderground is my go to weather site also since there's a station close to my house.

and I've been meaning to get one of these as well
http://www.amazon.com/dp/B00EW463SS/
and set up two of them in my backyard so I can monitor the temp closer.

That does sound like a good idea. I find it difficult to get the low overnight temp so I can get an idea of what temp is doing what damage to what plant.

WUnderground is reporting 33.9F at 12:30am and now I'm sweating because I only covered a few plants. It wasn't suppose to get this cold tonight.

It was 19 here in Camp Verde this morning

Thanks for the mention of weatherunderground site! I got a much better idea of what was going on here. Local newscasts are so all over the place with temp predictions right now it seems.

Here you go for email alerts.

Here is a link that might be useful: sign up

Thanks for all the suggestions. It's not hard to find weather alerts, but it is hard to find an alert that is ONLY sent to you if the temperature will go below freezing.

I found the alert below on weather.com today and signed up. It doesn't say if it's an alert for upcoming weather or current weather. I'm hoping it's for upcoming weather. We'll see!

{{gwi:2123080}}

I got my first alert today and it appears to be exactly what I was hoping for:

AWESOME, Jay! Thanks for the really helpful screenshots. I'm going to sign up for a below-freezing alert too. Great stuff! Happy gardening all!