Joanna, SC Weather Forecast

Local 7-day forecast

95°
F

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Joanna, SC in one place.

Friday, July 17, 2026
Wind: 2 mph ENE
Today

Sunny, with a high near 95. Heat index values as high as 101. East northeast wind around 2 mph.

Local 7-day forecast

Local Weather Overview

This forecast page for Joanna, SC is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 10:31 AM EDT.

The active forecast window currently covers Jul 17 to Jul 23, 2026 for Joanna, SC.

Page Snapshot

Page focus
city weather
Forecast window
Jul 17 to Jul 23, 2026
Latest sync
Jul 17, 2026 10:31 AM EDT
Forecast office
GSP
Source
NOAA / NWS
Next High
95°F
Today
Next Low
74°F
Tonight
Rain Outlook
11
Periods mentioning precipitation
Windiest
7 mph
Wednesday

Daily Outlook

Today
Jul 17
Sunny
95 °F
/ 74°F
Wind 2 mph
Sat
Jul 18
Mostly Sunny then Chance Showers And Thunderstorms
92 °F
/ 73°F
Wind 1 to 6 mph
Sun
Jul 19
Mostly Sunny then Chance Showers And Thunderstorms
91 °F
/ 72°F
Wind 3 mph
Mon
Jul 20
Mostly Sunny then Slight Chance Showers And Thunderstorms
90 °F
/ 73°F
Wind 2 mph
Tue
Jul 21
Mostly Sunny
91 °F
/ 76°F
Wind 2 to 6 mph
Wed
Jul 22
Mostly Sunny then Chance Showers And Thunderstorms
92 °F
/ 72°F
Wind 7 mph
Thu
Jul 23
Mostly Sunny then Slight Chance Showers And Thunderstorms
88 °F
/ 69°F
Wind 2 to 7 mph

This Week in Joanna

Today looks like the warmest upcoming period in Joanna at 95 degrees F.

Thursday Night is the coolest period ahead with temperatures near 69 degrees F.

The strongest winds are forecast for Wednesday at about 7 mph SW.

Precipitation is mentioned in 11 upcoming forecast periods.

Forecast Details

Last updated
Jul 17, 2026 10:31 AM EDT
Coverage
7 days
Time zone
America/New_York
Forecast office
GSP
Radar station
KGSP

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tonight
Jul 17
74°F
Slight Chance Showers And Thunderstorms then Partly Cloudy
2 mph SSW

A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Heat index values as high as 100. South southwest wind around 2 mph. Chance of precipitation is 20%.

Saturday
Jul 18
92°F
Mostly Sunny then Chance Showers And Thunderstorms
1 to 6 mph SSW

A chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 100. South southwest wind 1 to 6 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Saturday Night
Jul 18
73°F
Chance Showers And Thunderstorms
5 mph SW

A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Sunday
Jul 19
91°F
Mostly Sunny then Chance Showers And Thunderstorms
3 mph WSW

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. West southwest wind around 3 mph. Chance of precipitation is 40%.

Sunday Night
Jul 19
72°F
Chance Showers And Thunderstorms
2 mph WSW

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.

Monday
Jul 20
90°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
2 mph E

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.

Monday Night
Jul 20
73°F
Slight Chance Showers And Thunderstorms then Partly Cloudy
2 mph SSE

A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73.

Tuesday
Jul 21
91°F
Mostly Sunny
2 to 6 mph SSW

Mostly sunny, with a high near 91.

Tuesday Night
Jul 21
76°F
Partly Cloudy
2 to 6 mph SW

Partly cloudy, with a low around 76.

Wednesday
Jul 22
92°F
Mostly Sunny then Chance Showers And Thunderstorms
7 mph SW

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 40%.

Wednesday Night
Jul 22
72°F
Chance Showers And Thunderstorms
2 to 6 mph N

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

Thursday
Jul 23
88°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
2 to 7 mph NE

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.

Thursday Night
Jul 23
69°F
Slight Chance Showers And Thunderstorms
3 mph ENE

A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69.

Detailed Forecast

Period Conditions Temp Wind
Today
Jul 17
Sunny
95°F
2 mph
ENE
Tonight
Jul 17
Slight Chance Showers And Thunderstorms then Partly Cloudy
74°F
2 mph
SSW
Saturday
Jul 18
Mostly Sunny then Chance Showers And Thunderstorms
92°F
1 to 6 mph
SSW
Saturday Night
Jul 18
Chance Showers And Thunderstorms
73°F
5 mph
SW
Sunday
Jul 19
Mostly Sunny then Chance Showers And Thunderstorms
91°F
3 mph
WSW
Sunday Night
Jul 19
Chance Showers And Thunderstorms
72°F
2 mph
WSW
Monday
Jul 20
Mostly Sunny then Slight Chance Showers And Thunderstorms
90°F
2 mph
E
Monday Night
Jul 20
Slight Chance Showers And Thunderstorms then Partly Cloudy
73°F
2 mph
SSE
Tuesday
Jul 21
Mostly Sunny
91°F
2 to 6 mph
SSW
Tuesday Night
Jul 21
Partly Cloudy
76°F
2 to 6 mph
SW
Wednesday
Jul 22
Mostly Sunny then Chance Showers And Thunderstorms
92°F
7 mph
SW
Wednesday Night
Jul 22
Chance Showers And Thunderstorms
72°F
2 to 6 mph
N
Thursday
Jul 23
Mostly Sunny then Slight Chance Showers And Thunderstorms
88°F
2 to 7 mph
NE
Thursday Night
Jul 23
Slight Chance Showers And Thunderstorms
69°F
3 mph
ENE
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.