textproduct: Grand Rapids
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Sunny today, increasing clouds Friday
- Showers and isolated storms Friday night & Saturday
- Dry late weekend through mid week
DISCUSSION
Issued at 240 AM EDT Thu Jul 30 2026
- Sunny today, increasing clouds Friday
Skies are clear across the region due to high pressure at the surface and aloft moving over the Great Lakes. We'll see sunny skies today and highs in the mid to upper 80s. Today will feel a little humid as dewpoints climb into the lower 60s.
As the ridge moves east Friday, the next system upstream will spread clouds eastward and skies will become cloudy Friday afternoon.
- Showers and isolated storms Friday night & Saturday
Low pressure over the plains accompanied by an upper short wave will push showers and thunderstorms eastward across the lower Great Lakes Friday night. Models track the low south of the cwa, which means highest moisture content will also remain south, along with the severe weather threat which will reside over the Missouri Valley. QPF in the quarter to third of an inch range is expected with lowest amounts over the northern cwa. Showers will develop early Friday evening and end Saturday afternoon as the surface low and upper trough move east.
- Dry late weekend through mid week
High pressure will quickly build in behind the departing low producing dry weather Sunday through late Tuesday. Highs in the lower to mid 80s are expected during this period, which are near to slightly above normal.
AVIATION /06Z TAFS THROUGH 06Z FRIDAY/
Issued at 116 AM EDT Thu Jul 30 2026
Skies will remain mostly clear throughout the period as high pressure settles over the state. Light and variable winds will become WNWly by late morning as a few cu develop.
MARINE
Issued at 240 AM EDT Thu Jul 30 2026
Wind and waves will not pose a threat to small craft through Saturday, but will increase Sunday as the pressure gradient tightens.
Thunderstorms are possible Friday night and Saturday which would be hazardous to boaters and beach goers.
GRR WATCHES/WARNINGS/ADVISORIES
MI...None. MARINE...None.
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