>Frost warning for Spruce Grove - Morinville - Mayerthorpe - Evansburg issued
>
>Patchy frost expected tonight.
>
>An unusually cool airmass combined with clearing skies will produce frost in areas through Central Alberta tonight.

We've been much cooler and wetter than average since mid-July. I've got a backpacking trip planned for next week in the Wind River range of Wyoming. I'm planning for snow. At least the mosquitoes should be knocked down!