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Summer 2023 weather forecast for Greenville

Prepare for summer weather in Greenville with these seasonal temperature and precipitation outlooks.

An orange and blue sunset over the bridge at Falls Park, with water rushing over the rocks.

If you like piña coladas and getting caught in high temps, you’ll love summer in Greenville.

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We know the question on your mind, Greenvillians — how hot is it going to get this summer? 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 Wednesday, June 21.

The NOAA's seasonal temperature outlook map of the United States.

Summer is on the way, weather you like it or not.

Graphic via the NOAA

🌡️ Temperature

Think hot. This summer, Greenville has a 40-50% chance of temperatures being higher than normal.

🌨️ Precipitation

Keep that umbrella handy. Greenville has a 33-40% chance of seeing higher than average rainfall amounts this summer.


Typically in Greenville, June’s daily high temperatures are around 86.7° — plan for days like this or hotter. Fun fact: The first day of summer (Wednesday, June 21) is the summer solstice, and the sun will be in its northernmost spot in the sky at 10:57 a.m. in our city.


July’s averages make it the warmest month in Greenville — we’re looking at an average high temperature of 90.1°. Don’t forget that the heat index will make it feel even hotter — July’s average heat index is 105.8°, so follow our heat safety tips. On the bright side (pun intended), it’s also the month with the most sunshine. Grab a good SPF and head outdoors to your favorite summer activity.


Highs in August cool off slightly from July to 88.5°, but since there’s a chance of temperature increases, we wouldn’t pack away your flip flops and sun hats just yet. August’s average rainfall is 3.27" over 17.3 rainfall days — providing some possible relief from the sun.

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