Marine Weather and Tide Forecast for Oshkosh, WI

DISCUSSION
Issued at 305 PM CDT Tue Apr 29 2025

Fair weather cumulus clouds lingered across much of the area this afternoon. Temperatures ranged from the lower to middle 40s over the far north to near 60 across portions of east-central and northeast Wisconsin.

For tonight, skies will become clear with diminishing winds this evening. With mostly clear skies and light winds, temperatures should be fairly cool for late April with middle 20s north to the lower 30s south. On Wednesday, skies will start out sunny then turn cloudy during the afternoon. High temperatures should be in the middle 50s to lower 60s, but cooler near Lake Michigan and the bay of Green Bay. Some differences in the forecast arise Wednesday night into Thursday, as the first system will bring rain to the southeast half of the forecast area, with the rest of the area remaining dry. The first system will move away from the area on Thursday, as the next system approaches from the northwest. There could be a fairly large break in the rain between the two systems. A 500mb trough is expected to swing across the area on Friday, bringing scattered showers to the area. Low wet bulb heights noted, so wouldn't be surprised if there was some small hail during the afternoon.

Dry and mild conditions should prevail Sunday through Tuesday with highs prevailing in the 60s and 70s.

AVIATION
for 00Z TAF Issuance Issued at 650 PM CDT Tue Apr 29 2025

Scattered to broken VFR clouds near Lake Michigan will clear out early this evening. Skies will remain clear regionwide through the overnight hours into Wednesday before high clouds return later in the day. Northwest winds will become light through the evening before veering to the northeast/east overnight before becoming southeast on Wednesday. The next chance of rain is expected on Wednesday night, with the highest chances across east-central and northeast Wisconsin.

GRB WATCHES/WARNINGS/ADVISORIES
None.