A strong, low pressure system is it's the early stages of development west of us - in the Mississippi Valley. As this system develops, south and southwesterly winds ahead of it will act to draw in moisture and clouds. It's a safe bet that some heavy rain is on the way. Here's how the timing looks as of now:
Overnight into Early Monday: The opportunity for rain will be with us, yet only scattered downpours are possible. Also, thunder and lightning may be an issue in a few places, but severe thunderstorms won't be a problem. Odds are in your favor that you won't have to deal with rain on Monday morning as you get out into town, to work or two school. Temperatures will be in the 60s.
Monday - Day Portion: We'll have a mostly cloudy (if not fully cloudy) sky all day with slowly warning temperatures into the 70s. Rain will be possible from 7am to Noon, then much more likely from Noon until 9pm. Heavy downpours are also likely in some locations while others will only see a few showers. Plan on the possibility of a soggy trip home from work or school in hopes of the best case scenario being that rain holds off until evening. Temperatures will be in the 70s.
Monday Night: Steady rain likely, some heavy rain at times. It will be rainy in many locations through the night. Expect wet roads Monday night. Temperatures will cool back into the 60s.
Tuesday: Steady rain likely, some heavy rain at times, especially in the around sunrise. Rain will be less likely during the afternoon on Tuesday, but still possible. Expect wet roads, especially when you get outside early in the day! Temperatures will be in the 60s and 70s.
With the shear amount of rain headed this way, there's also the potential of flash flooding late Monday into early Tuesday, so we'll keep an eye on that, although we don't expect flash flooding to be a widespread problem.