Marine Weather and Tide Forecast for Athens, WI

KEY MESSAGES

- Dense marine fog will continue on Lake Michigan into Monday morning. A Marine Dense Fog Advisory is in effect through 10 am Monday. Some of the fog will work its way inland, resulting in hazardous travel over portions of Door, Kewaunee and Manitowoc counties.

- Intermittent chances for rain (20-40%) and thunderstorms are forecast through Wednesday. The risk for organized heavier rain or severe weather is low.

- Above normal temperatures are expected through the week, with 80s forecast for Memorial Day, Tuesday, and Wednesday. A few spots may approach or reach 90 on Tuesday and Wednesday.

DISCUSSION
Issued at 221 PM CDT Sun May 24 2026

Daytime cu popping up this afternoon, otherwise dry and seasonable weather with temperatures at 19Z in the upper 60s to mid 70s away from Lake Michigan (closer to 60 degrees near the lake). Expect temps to rise a few more degrees throughout the afternoon.

Precipitation: Clouds clear early this evening, followed by mid clouds moving in from the west generated by some weak warm advection. Additionally, 850mb jet increases late tonight which may provide enough forcing to generate some widely scattered showers. CAMs remain mixed on this potential, and moisture is also limited. Continued to carry mainly slight chance PoPs (15-25%)
from late tonight into Monday. There are also small isolated thunder chances (~15%) with 500-1000 J/kg of MUCAPE, but severe storms are not expected.

Continue to see small precipitation potential both Tuesday and Wednesday, mainly during the afternoon and early evenings, from weak features and daytime heated. Isolated, non-severe thunderstorms are also possible (~15-20% probability) with some instability present.

Surface high pressure dominates the area from Thursday through next weekend which will result in little to no precipitation.

Temperatures...Readings will trend above normal for the next week, peaking on Tuesday with highs the 80s to possibly low 90s. NBM shows a 50-70% probability for parts of central into northeast WI reaching or exceeding 90 degrees. While dew points will be tolerable in the 50s to low 60s, there is a moderate (level 2 of 4) heat risk, meaning prolonged periods outside could affect those who are sensitive to heat.

AVIATION
for 06Z TAF Issuance Issued at 1135 PM CDT Sun May 24 2026

Showers that moved through northern WI this evening dissipated as they moved through far NE WI, leaving dry conditions across the forecast area. Widespread dense marine fog was evident over Lake Michigan per satellite and web cams, but has not pushed inland enough to impact the MTW TAF site.

Still expect the marine fog to move farther inland overnight, eventually bringing LIFR flight conditions to MTW before dissipating Monday morning. Other than the marine fog along the lakeshore, VFR conditions are anticipated for the rest of the forecast area.

Precipitation trends are a bit tough to discern. Have backed off on additional precipitation development overnight, but a short- wave moving through the eastern Dakotas should bring at least scattered showers and isolated storms to at least the western TAF sites Monday morning.

Light SE-S winds tonight will become quite gusty from the southwest after a warm front moves through on Monday. It appears that some LLWS will develop over the region later Monday evening.

GRB WATCHES/WARNINGS/ADVISORIES
None.