Weather for St. Stephen, South Carolina
Current Weather
Five Day Weather Forecast
Mon
H: 100°F
L: 75°F
Tue
H: 99°F
L: 76°F
Wed
H: 103°F
L: 79°F
Thu
H: 101°F
L: 79°F
Fri
H: 101°F
L: 79°F
Air Quality
Nitrogen Dioxide: 3.1 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 70 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 8:33 PM
Daylight: 14 hrs 17 mins
Moon Transit: 1:15 PM
Moonset: 12:26 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%
Best Times for Fishing or Hunting
Major Periods
12:45 AM - 3:15 PM12:45 AM - 3:15 PM
Minor Periods
11:56 AM - 1:26 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Heat Advisory issued July 6 at 1:36PM EDT until July 6 at 7:00PM EDT by NWS Charleston SC
Effective: Mon July 6, 2026, 1:36 PM
Expires: Mon July 6, 2026, 9:45 PM
* WHAT...For the first Heat Advisory, heat index values up to 110. For the second Heat Advisory, heat index values up to 110 expected. * WHERE...Beaufort, Charleston, Coastal Colleton, Coastal Jasper, Inland Berkeley, and Tidal Berkeley Counties. * WHEN...For the first Heat Advisory, until 7 PM EDT this evening. For the second Heat Advisory, from 11 AM to 7 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 6 at 1:36PM EDT until July 7 at 7:00PM EDT by NWS Charleston SC
Effective: Mon July 6, 2026, 1:36 PM
Expires: Mon July 6, 2026, 9:45 PM
* WHAT...For the first Heat Advisory, heat index values up to 110. For the second Heat Advisory, heat index values up to 110 expected. * WHERE...Beaufort, Charleston, Coastal Colleton, Coastal Jasper, Inland Berkeley, and Tidal Berkeley Counties. * WHEN...For the first Heat Advisory, until 7 PM EDT this evening. For the second Heat Advisory, from 11 AM to 7 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 6 at 6:48PM EDT until July 6 at 7:00PM EDT by NWS Charleston SC
Effective: Mon July 6, 2026, 6:48 PM
Expires: Tue July 7, 2026, 8:00 AM
* WHAT...Heat index values up to 110 expected. * WHERE...Beaufort, Charleston, Coastal Colleton, Coastal Jasper, Inland Berkeley, and Tidal Berkeley Counties. * WHEN...From 11 AM to 7 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 6 at 6:48PM EDT until July 7 at 7:00PM EDT by NWS Charleston SC
Effective: Mon July 6, 2026, 6:48 PM
Expires: Tue July 7, 2026, 8:00 AM
* WHAT...Heat index values up to 110 expected. * WHERE...Beaufort, Charleston, Coastal Colleton, Coastal Jasper, Inland Berkeley, and Tidal Berkeley Counties. * WHEN...From 11 AM to 7 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.67 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 72.75 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 8:33 PM
Daylight: 14 hrs 17 mins
Moon Transit: 1:15 PM
Moonset: 12:26 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%
Best Times for Fishing or Hunting
Major Periods
12:45 AM - 3:15 PM12:45 AM - 3:15 PM
Minor Periods
11:56 AM - 1:26 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 0.65 μg/m3
Ozone: 87.42 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 8:33 PM
Daylight: 14 hrs 16 mins
Moon Transit: 12:00 AM
Moonset: 1:28 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM8:09 PM - 10:39 PM
Minor Periods
12:58 AM - 2:28 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.33 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 99.04 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 8:33 PM
Daylight: 14 hrs 16 mins
Moon Transit: 7:39 AM
Moonset: 2:34 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%
Best Times for Fishing or Hunting
Major Periods
7:09 AM - 9:39 AM8:58 PM - 11:28 PM
Minor Periods
2:04 PM - 3:34 PM12:25 AM - 1:55 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.32 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 94.13 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:32 PM
Daylight: 14 hrs 15 mins
Moon Transit: 8:31 AM
Moonset: 3:44 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%
Best Times for Fishing or Hunting
Major Periods
8:01 AM - 10:31 AM12:00 AM - 12:00 AM
Minor Periods
3:14 PM - 4:44 PM12:58 AM - 2:28 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.37 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 90.63 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:32 PM
Daylight: 14 hrs 14 mins
Moon Transit: 9:28 AM
Moonset: 4:57 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%
Best Times for Fishing or Hunting
Major Periods
8:58 AM - 11:28 AM12:00 AM - 12:00 AM
Minor Periods
4:27 PM - 5:57 PM1:38 AM - 3:08 AM
Action Rating: 2 out of 5