Tonight: Just a chance of rain showers will be possible along the Western Slope tonight. The best rain opportunities exist to our south in the San Juans and that activity could keep going later tonight. Low temperatures with a mostly cloudy forecast will be in the middle 60s for Grand Junction, lower 60s near Montrose and the lower 50s at Gunnison. Some of these storms could have some gusty wind speeds and cloud to ground lightning.
Tomorrow: The position of the high pressure system is roughly in south central Colorado and this allows more moisture to push northward. That pattern should keep the Western Slope in an active rain pattern for Thursday afternoon. More clouds will also translate to less hot temperatures. Grand Junction should have an afternoon high near the middle and lower 90s, Montrose should top out at 90° and Gunnison will be in the lower 80s.