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Hourly Forecast
Daylight Hours
07:15
Sunrise
19:29
Sunset
Moon
Waxing Crescent
10:45
Moonrise
20:46
Moonset
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Thursday
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Wednesday
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Weather in Spartanburg tomorrow, September 15, 2026
Expect a muted, overcast feel in Spartanburg on September 15, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Cloud leads the morning, peaking close to 100% near 00:00. Sunshine has little room until later in the day.
The day peaks near 29°C and cools toward 22°C. Moisture in the air spans 63%-92%, with the highest values around 08:00. Expect gentle winds, highest near 11:00 at 3.7 km/h.
Through the afternoon cloud remains the main feature, with cover near 100% around 13:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 15.4 km, briefly nearer 13.1 km. Sunrise is at 07:16 and sunset at 19:28, giving 12 hours 12 minutes of sunlight today.
Overall, Spartanburg on September 15, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 29°C.
Frequently asked questions about weather in Spartanburg
How warm does it get in Spartanburg?
The warmest month in Spartanburg is July, with average high temperatures of 33°C. The average temperature during this period is around 27°C.
How cold does it get in Spartanburg?
The coldest month in Spartanburg is January, with average low temperatures of 1°C. The average temperature during this period is around 6°C.
What is the wettest time of year in Spartanburg?
The wettest month in Spartanburg is August, with an average of 115mm of precipitation.
What is the driest time of year in Spartanburg?
The driest month in Spartanburg is June, with an average of 72mm of precipitation.
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