Marine Weather and Tide Forecast for Forestville, WI

DISCUSSION
Issued at 151 AM CDT Mon Aug 3 2026

Dry weather through tonight...

Latest IR satellite imagery indicates despite temperatures near the dew point, clear skies, and light winds, fog is not forming across the region. In addition, recent model and ensemble data is less bullish on fog formation early this morning other than some patchy fog and minor visibility restrictions. Therefore, fog is not expected to have much of an impact this morning or during the morning commute. High pressure will keep the weather dry across the region through tonight.

A cold front brings rain chances Tuesday through Wednesday night...

A cold front sinking south will bring a chance (20-40%) of rain as it tracks through the region Tuesday. The initial surge will not have much in the form of dynamics; therefore, precipitation is not expected to be ubiquitous with this first shot.

The front stalls across the western Great Lakes region Tuesday night as the main surface low lifts north from the southern Plains and strong mid level frontogenesis develops along the front. This will bring an increased chance (50-80%) for showers and thunderstorms Tuesday night across east-central Wisconsin and the lakeshore. Modest instability (MUCAPEs of 500-1000 J/kg) and shear (25-30 knots) should keep storms below severe limits. PWATs up to 2 inches and long skinny CAPE profiles will mean excessive rain will be a threat, especially Tuesday night across eastern Wisconsin.

The front will sink a bit farther southeast as a mid level trough and attendant shortwave track through the western Great Lakes.
This will bring a continued chance (30-50%) for additional showers and thunderstorms across this same area Wednesday and Wednesday night. Given the front will be a bit farther southeast, the additional rainfall should mainly be a glancing blow during this period with the heaviest rain expected to be southeast. Continued high PWATs of 1.5 to 1.75 will mean excessive rainfall will still be a threat, especially for areas that receive repeated rounds of heavy rain during this period.

Dry weather expected late in the week with active weather again for the weekend...

High pressure is then expected to bring dry weather Thursday and Friday across the area. Another cold front sinking south will bring additional chances (20-40%) for the upcoming weekend. NWP models and ensembles are murkier for the upcoming weekend as timing and placement of the upcoming thunderstorms across the region differ quite a bit. Therefore, the entire weekend will neither be completely dry or a complete washout.

AVIATION
for 12Z TAF Issuance Issued at 527 AM CDT Mon Aug 3 2026

Other than some patchy fog in the first few hours of the TAF forecast, VFR conditions are expected through this TAF period under mostly clear/sunny skies. FEW/SCT CU is anticipated to develop this afternoon across the region, which may be observed across all TAF sites, but cigs will remain low-end VFR with cloud bases around 3500-5000 ft AGL. High clouds will begin to move into the area from the northwest late this evening and spread into the area late tonight.

Light and variable winds will become southerly and increase to 5 to 10 kts this afternoon.

GRB WATCHES/WARNINGS/ADVISORIES
None.