ROCKFORD (WREX) — This evening will feature a few scattered showers in the area, so if you have outdoor plans then grab an umbrella. Most of the showers this afternoon should only cause light to moderate rain. However, a shift to southerly facing winds helps increase our moisture content allowing for some showers to bring spots of heavy rainfall. Most of the evening storms will not feature lightning and thunder, but that chance will increase into the night.
Overnight, an area of upper-level moisture will move into the region from to aid in shower and storm formation. Rain will be possible starting during the night into Monday. The highest chance for rain will be possible just before daybreak. Temperatures will only make it down into the lower 60’s tonight.
This chance of rain on Monday is due to an upper-level disturbance. An upper-level disturbance helps make the air in the atmosphere unstable and conducive to clouds and precipitation. There will be a chance for some sub-severe storms to pop up for Monday due to this feature. We are currently under a 1 out of 5 on severe weather threats. This looks to only include the possibility for a few a gusty winds and heavy rainfall. A cold front will move into the region by Monday evening leading to another possibility for rain and storms. Temperatures will backtrack to summer with highs in the upper 70’s and lower 80’s on Monday.
However, the weather will not warm up for long. Another couple of waves of cooler air from Canada will quickly drop temperatures back to the 70’s. Late next week, we may even fall to the low 70’s for highs. The cooler pattern will be mostly dry. Only slight chances for rain appear next Wednesday and Friday. The long-range outlook does not show any major warm-ups coming, so Labor Day Weekend may keep the cooler-than-usual weather around through the holiday.