If it wasn’t for the cold fronts coming this weekend, this would be a very boring discussion. In advance of that, we’ll see above average temperatures and a small chance of an afternoon thunderstorm. The main front arrives mid-afternoon Saturday with a better chance of showers/thunderstorms.
Sunday is cool with slowly clearing clouds. We remain just below 80F for much of next week with some afternoon rain chances.
Today (Thursday) will see very low chances of afternoon storms (more in the southern mountains again – Figure 1). We end the week with above average high temperatures (mid 80’sF). The first surge of cool air comes in Friday afternoon (blue line – Figure 2) with a slightly better chance of showers. We are cooled 10F on Saturday.
The Longer Range Forecast:
The next front comes in Saturday afternoon (with the big peak in rain chances – not marked by an added graphic- Figure 2) and we cool another 10F going into Sunday.
This double shot of cool air is coming in thanks to a big trough north of the state (Figure 3). Rain amounts over the next 5 days (the green line in Figure 2 – and painted out in Figure 4) show Longmont getting minimal rain totals, but lucky folks in the mountains and out on the eastern plains will break 1 inch of water.
There isn’t any severe weather on the near horizon either. Any storm can be dangerous with local flooding, lightning, and a blast of strong winds. Respect the storms, especially if you are up in the mountains!