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Summer 2024 weather forecast for Chattanooga

Prepare for summer weather in the Scenic City with these seasonal temperature and precipitation outlooks.

Screen Shot 2022-06-23 at 3.16.08 PM

Things are heating up in the Scenic City.

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We know the question on your mind, Chattanooga — when is it really going to get hot? Thanks to the National Oceanic and Atmospheric Administration’s Climate Prediction Center, we know what temperatures and precipitation trends to expect in our city for June, July, and August.

While exact weather conditions typically can’t be predicted more than a week in advance, here’s a seasonal outlook to help you prepare for what summer will bring.

Reminder: The first day of summer is on Thursday, June 20.

NOOGAtoday | Summer weather outlook 2024

Spoiler alert: It’s gonna be a hot one.

Map via NOAA

🌡️ Temperature

No surprises here — get ready for the heat. This summer, Chattanooga has a 40-50% chance of temperatures being higher than normal.

🌨️ Precipitation

Keep your umbrella nearby and expect slightly more precipitation. Chattanooga also has a 40-50% chance of seeing higher than average rainfall amounts this summer.


June highlights the transitions into Chattanooga’s summer with warmer weather and sunny conditions. Temperatures tend to increase to 85.6° — compared to May’s 78.1°. Bonus: The sun is out for an average of 14.5 hours this month, meaning you’ll have more time during the day to enjoy outdoor activities.


Historically, July sees the highest temperatures, averaging around 88° — marking the peak of summer in Chattanooga. You can also expect the average relative humidity rate to increase to 75% on most days during this month.

July’s heat index is computed to be 102.2°, so you’ll want to make sure you stay hydrated and take precautions while outdoors.


Temperatures in August tend to decrease slightly to an average of 87.3°, so you can still expect plenty of warm and sunny days ahead.

Rainfall during August will typically increase to reach an average of 3.31 inches, for a slight break from the summer heat.

Bonus: There’s no shortage of things to do in Chattanooga this summer. Check out our guide for summer happenings we have our eyes on.

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