Marine Weather and Tide Forecast for Belgium, WI

UPDATE
Issued 539 PM CST Tue Feb 10 2026

Nwly winds and cold advection will prevail tnt-Fri AM as low pressure over ern Ontario moves to New England. A stream of 500 mb vorticity extending from se Manitoba to nrn WI will settle to central Lake MI by 12Z Wed, but subsidence will continue south of it over srn WI. Thus expect stratus north of Madison and Milwaukee to slowly dissipate through the evening but it could shift a bit swd before doing so. Low temps in the lower 20s are still expected tnt. The overall air mass is not too cold with highs in the 30s for Wed, which will be aided by mostly sunny to partly cloudy skies.

Gehring

SHORT TERM
Issued 115 PM CST Tue Feb 10 2026

Tonight through Wednesday night:

Broken low altitude clouds have encroached into all but far southeastern WI early this afternoon, but should scatter apart later this afternoon as the boundary layer mixes and dries out.
The northwest breeze and associated cold advection continue into tonight, sending temperatures into the low 20s. The northwest winds gradually weaken into Wednesday with highs in the 30s. The scattered / broken low clouds Wednesday morning clear out completely (in a SW to NE manner) into Wednesday afternoon as high pressure builds into the Mississippi river valley. Clear skies and calm winds are forecast Wednesday evening as the high pressure rests overhead, allowing for strong radiational cooling. Temps bottom out in the mid teens to mid 20s (coldest further north) Wednesday night. High clouds build into the region and thicken later Wednesday night ahead of a weak disturbance covered in the Long Term discussion.

Sheppard

LONG TERM
Issued 100 PM CST Tue Feb 10 2026

Thursday through Tuesday:

The low to mid tropospheric baroclinic zone sets up in a NW to SE manner across southern MN / northeastern IA Thursday, with some surface to 700mb frontogenesis along it leading to a chance for light snow. As it currently stands, we have 15 to 25% chances for light snow southwest of Madison on Thursday (mainly just flurries or a dusting if applicable), with dry weather elsewhere. The FGEN / baroclinicity and associated precip chances have been trending further and further from our region with each model cycle, deeper into IA. The FGEN washes out / dissolves into Thursday evening, and what's left of it passes over the rest of southern WI. For this, we've left area wide ~8% precip chances into Thursday evening before zeroing out into Friday.

The Saturday night / Sunday precip chances have likewise decreased (only 10-20% chances there, highest towards far southeast WI), and the pattern looks to remain quiet and dry until next Tuesday. Model guidance continues to converge on ridging in the jet stream over the midwest, building and amplifying later this week into early next week. Ensemble IQRs for max temperature rise into the upper 40s early next week, and even intersect the low 50s into Tuesday. Likewise our deterministic forecast reaches the 40s to low 50s for high temperatures by Tuesday (with the warmest conditions further inland).

Sheppard

AVIATION
Issued 539 PM CST Tue Feb 10 2026

Widespread stratus north of Madison and Milwaukee around 2.5-3.5 kft will slowly shift south but also decrease in coverage this evening. Areas of MVFR Cigs will occur along and north of a line from Madison to Milwaukee. VFR conditions to then take hold from early Wed AM into Wed evening.

Gehring

MARINE
Issued 100 PM CST Tue Feb 10 2026

Breezy northwest winds continue into this evening, achieving 25 to 30 knot gusts into tonight as low pressure around 29.6 inches tracks eastward past Montreal and high pressure around 30.3 inches builds eastward into the Mississippi river valley. We can't rule out a few gusts to gale force tonight, but nothing persistent / widespread.

The aforementioned broad area of high pressure slowly drifts eastward into Wednesday, with northwest winds diminishing into Wednesday night. Nearly calm or light and variable winds expected on Thursday as it passes overhead. High pressure continues east into Ohio later this week, working with weak low pressure in central Ontario / Quebec to drive light southwesterly winds over the lake Friday into Saturday.

Sheppard

MKX WATCHES/WARNINGS/ADVISORIES
WI...None.
LM
Small Craft Advisory
LMZ643-LMZ644-LMZ645-LMZ646 until 7 AM Wednesday.