Green Bay, WI Weather

The Wolfecast

Storms roll through overnight, likely before midnight. Strong to severe storms are possible, with damaging winds, large hail, and heavy rain all on the table.

Tomorrow

Heat cranks to 94°F with a Heat Advisory in effect. A storm chance lingers into the morning before skies clear out by midday.

70°

CloudyL:67°

Wear

Light clothes

Rain

Bring umbrella

10:25 PM

Extreme Heat Warning issued June 28 at 8:25PM CDT until June 30 at 7:00PM CDT by NWS Green Bay WI

Tomorrow 12:00 PM–5:00 AM

A Heat Advisory is in effect Monday and Tuesday for Green Bay, with heat indices well into the upper 90s and overnight lows staying near 75 with little relief.

Mon–Tue

Strong to severe storms roll through tonight, with damaging winds, large hail, and heavy rain possible as a warm front pushes in.

Sun night

More storm chances continue Tuesday through the end of the week as shortwaves ride along the ridge, with heavy rain the main concern on saturated soils.

Tue–Fri

Rain Check5 days · HRRR + blend

Next rain: tomorrow ~3 AM

Light rain tomorrow night through morning — just a trace total. More possible Tuesday. Dry for the rest of today.

Today

—

Mon

55%

Tue

49%

Wed

49%

0.16″

Thu

48%

0.31″

Shade = chance · bars = amountNights dark · tap to inspect

You're dry tonight and through most of tomorrow — the forecast keeps rain away until Tuesday, when there's a chance of some light precipitation moving in. Mid-week into Thursday looks like your best shot for measurable rain, with models suggesting around a quarter to third of an inch possible Wednesday and Thursday as a system moves through.

HRRR Simulated Radar

Tropical Tidbits

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7-Day Forecast

Today

Jun 28

Chance Showers And Thunderstorms

67°

Mon

Jun 29

35%

Chance Showers And Thunderstorms then Mostly Sunny

94°

77°

Tue

Jun 30

11%

Sunny

96°

75°

Wed

Jul 1

34%

Chance Showers And Thunderstorms

95°

74°

Thu

Jul 2

60%

Showers And Thunderstorms Likely then Chance Showers And Thunderstorms

92°

72°

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Why This Forecast

NWS GRB Analysis

Issued Jun 28, 6:34 PM

The raw NWS discussion is available below. AI-powered summary is temporarily unavailable.

000 FXUS63 KGRB 282334 AFDGRB Area Forecast Discussion National Weather Service Green Bay WI 634 PM CDT Sun Jun 28 2026 Updated aviation portion for 00Z TAF issuance .KEY MESSAGES... - Small chance of thunderstorms (20-30%) over central and north- central Wisconsin this afternoon. - Strong to severe storms possible tonight and again on Monday night. Main hazards would be damaging winds, large hail, and heavy rain. - Periodic chances for thunderstorms Tuesday through the end of the...

Updated 10:51 PM

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Maps & Tools

GOES East Satellite

GEOCOLOR continental US

Storm Prediction Center

SPC outlooks & watches

Climate Prediction Center

6–14 day & monthly outlooks

Surface Winds

Global wind patterns — earth.nullschool.net

Other Cool Sites

Ag-Wx

Agricultural weather data & maps

Nadocast

ML-based severe weather forecasts

About the weather in Green Bay, WI

Wolfecast gives you the Green Bay, WI forecast the way a meteorologist would explain it to a neighbor. Instead of just a number, we read the National Weather Service forecast discussion issued by the GRB office, translate it into plain English, and tell you how confident to be and why. The radar loop above comes from the KGRB station, and every forecast is grounded in official NWS data for your exact location.

Check back each morning for an updated read on temperature swings, rain timing, and any storms worth watching around Green Bay. Want alerts when rain is minutes away? Install Wolfecast and turn on notifications.