Fort Wayne, IN Weather

The Wolfecast

A slight chance of a passing shower lingers into the overnight, but it's mainly quiet. Lows hold near 68°F.

Tomorrow

Heat cranks up fast. Highs hit 93°F under partly sunny skies, and that's actually the coolest day of the stretch ahead.

73°

Scattered Rain ShowersL:68°

Wear

Light clothes

Rain

No umbrella tonight

11:25 PM

Extreme Heat Warning issued June 28 at 1:29PM EDT until July 2 at 8:00PM EDT by NWS Northern Indiana

Tomorrow 2:00 PM–6:00 AM

An Extreme Heat Warning runs from Monday afternoon through Thursday evening. Heat indices will top 100°F, nights stay muggy with limited relief, and even healthy adults spending time outside will feel it.

Mon afternoon – Thu evening

Tuesday looks like the peak of the heat dome with sunny skies and a high near 95°F. Plan outdoor activities for early morning if you can.

Tuesday

Friday brings some uncertainty as storm chances increase and the ridge may shift east, which could offer the first meaningful break from the heat.

Friday

Rain Check5 days · HRRR + blend

No rain expected through Thursday — you're good to go

Today

—

Mon

—

Tue

—

Wed

—

Thu

—

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7-Day Forecast

Today

Jun 28

Scattered Rain Showers

68°

Mon

Jun 29

Partly Sunny

93°

73°

Tue

Jun 30

Sunny

95°

73°

Wed

Jul 1

Sunny

96°

73°

Thu

Jul 2

Sunny

97°

74°

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Why This Forecast

NWS IWX Analysis

Issued Jun 28, 7:52 PM

Tonight you'll see a few scattered showers near Fort Wayne (13% chance), but nothing significant. By Monday we're looking at 93 degrees with mostly sunny skies, but that's just the opening act. An Extreme Heat Warning takes effect Monday afternoon and runs through Thursday evening, with heat indices climbing to around 100 degrees or higher. The real story is what happens after dark: nighttime temperatures will only dip to the low 70s, which means your body and your home won't get relief, and that's where the danger lies.

What's driving this is a large high-pressure system, sometimes called an upper ridge, settling over the region. High pressure acts like a lid, keeping air from rising and clouds from forming. When you combine that dome of hot air with humidity—which we'll have plenty of—the atmosphere becomes extremely efficient at trapping heat. Normally a cool night resets things a bit, but with limited cooling overnight, the cumulative effect builds day after day. That's why meteorologists worry less about any single day hitting a certain temperature and more about the relentless repeat: your body doesn't fully recover, and people working outdoors or without air conditioning face compounding stress.

There's a small chance a weather system could nudge that upper ridge slightly eastward late in the week and allow a few storms to develop Friday, but confidence is low right now. For now, the focus stays on the heat through Thursday. This is a good reminder that humidity matters as much as the thermometer does—it's the combination that determines how dangerous conditions really are.

Updated 11:49 PM

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About the weather in Fort Wayne, IN

Wolfecast gives you the Fort Wayne, IN 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 IWX office, translate it into plain English, and tell you how confident to be and why. The radar loop above comes from the KIWX 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 Fort Wayne. Want alerts when rain is minutes away? Install Wolfecast and turn on notifications.