- Track temp
- 92°F33°C
- Rain chance
- 0%
- Wind
- 6mph10km/hW
- Density alt.
- 773ft236m
- Barometer 30.04 inHg1017 hPa falling
- Humidity 37%
Forecast updated · Open-Meteo
Hour by hour
ClearTemperature 68°20°Rain chance 0%Wind 6 mph10 km/hWTrack temperature 92°33°Density altitude 773 ft236 mClearTemperature 68°20°Rain chance 0%Wind 7 mph11 km/hWTrack temperature 86°30°Density altitude 824 ft251 mClearTemperature 68°20°Rain chance 0%Wind 7 mph11 km/hWTrack temperature 79°26°Density altitude 822 ft251 mClearTemperature 65°19°Rain chance 0%Wind 5 mph7 km/hWNWTrack temperature 69°20°Density altitude 621 ft189 m
ClearTemperature 61°16°Rain chance 0%Wind 3 mph5 km/hNNWTrack temperature 61°16°Density altitude 335 ft102 mClearTemperature 58°14°Rain chance 0%Wind 4 mph7 km/hNTrack temperature 58°14°Density altitude 129 ft39 mClearTemperature 56°13°Rain chance 0%Wind 2 mph4 km/hWTrack temperature 56°13°Density altitude -4 ft-1 mClearTemperature 55°13°Rain chance 0%Wind 5 mph8 km/hSTrack temperature 55°13°Density altitude -78 ft-24 mClearTemperature 53°12°Rain chance 0%Wind 6 mph10 km/hSSWTrack temperature 53°12°Density altitude -202 ft-62 mClearTemperature 52°11°Rain chance 0%Wind 5 mph9 km/hSWTrack temperature 52°11°Density altitude -272 ft-83 mClearTemperature 51°11°Rain chance 0%Wind 6 mph10 km/hSWTrack temperature 51°11°Density altitude -301 ft-92 mClearTemperature 50°10°Rain chance 0%Wind 5 mph8 km/hWSWTrack temperature 50°10°Density altitude -386 ft-118 mClearTemperature 49°10°Rain chance 0%Wind 5 mph9 km/hWSWTrack temperature 49°10°Density altitude -449 ft-137 mClearTemperature 48°9°Rain chance 0%Wind 5 mph8 km/hWSWTrack temperature 48°9°Density altitude -493 ft-150 mClearTemperature 48°9°Rain chance 0%Wind 6 mph9 km/hWSWTrack temperature 48°9°Density altitude -534 ft-163 mClearTemperature 47°9°Rain chance 0%Wind 6 mph10 km/hWSWTrack temperature 47°9°Density altitude -580 ft-177 mClearTemperature 47°8°Rain chance 0%Wind 6 mph10 km/hWSWTrack temperature 47°8°Density altitude -647 ft-197 mClearTemperature 44°7°Rain chance 0%Wind 6 mph9 km/hSWTrack temperature 44°7°Density altitude -878 ft-268 mClearTemperature 47°8°Rain chance 0%Wind 2 mph3 km/hWTrack temperature 52°11°Density altitude -646 ft-197 mClearTemperature 55°13°Rain chance 0%Wind 4 mph6 km/hWNWTrack temperature 68°20°Density altitude -153 ft-47 mClearTemperature 61°16°Rain chance 0%Wind 1 mph2 km/hNWTrack temperature 85°30°Density altitude 268 ft82 mClearTemperature 66°19°Rain chance 0%Wind 3 mph4 km/hNNETrack temperature 94°35°Density altitude 573 ft175 mClearTemperature 70°21°Rain chance 0%Wind 1 mph1 km/hNNETrack temperature 104°40°Density altitude 825 ft251 mClearTemperature 73°23°Rain chance 0%Wind 3 mph4 km/hWNWTrack temperature 104°40°Density altitude 1,031 ft314 mHours are track time (EST). Track temperature is an estimate. DA is density altitude.
The racer numbers
Computed from the forecast air temperature, dew point and station pressure (NWS formulas; the correction factor by SAE J1349 and the older 60 °F STD standard). Track temperature is estimated from sun, wind and the surface; it is not a sensor reading. How these are figured.
Day by day
- TodayNov 868°20° 42°6° 0%Green flag
- TomorrowNov 975°24° 44°7° 0%Green flag
- TueNov 10
74°23° 47°8° 0%Green flag - WedNov 1175°24° 54°12° 2%Green flag
- ThuNov 12
77°25° 56°14° 15%Yellow flag - FriNov 1359°15° 42°6° 6%Yellow flag
- SatNov 1454°12° 39°4° 4%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Nov 8 | Green flag | Clear | 68°20° 42°6° | 0% | 12 mph19 km/h NW | 99°37° | 824 ft251 m | 6:45 AM · 5:21 PM |
| Tomorrow Nov 9 | Green flag | Clear | 75°24° 44°7° | 0% | 14 mph23 km/h WNW | 104°40° | 1,152 ft351 m | 6:46 AM · 5:21 PM |
| Tue Nov 10 | Green flag | Overcast | 74°23° 47°8° | 0% | 15 mph23 km/h WSW | 96°36° | 1,148 ft350 m | 6:47 AM · 5:20 PM |
| Wed Nov 11 | Green flag | Overcast | 75°24° 54°12° | 2% | 12 mph19 km/h WSW | 96°35° | 1,374 ft419 m | 6:48 AM · 5:19 PM |
| Thu Nov 12 | Yellow flaggusty wind | Light drizzle | 77°25° 56°14° | 15% <0.01 in0.1 mm | 32 mph52 km/h WSW | 93°34° | 1,925 ft587 m | 6:49 AM · 5:18 PM |
| Fri Nov 13 | Yellow flaggusty wind | Light drizzle | 59°15° 42°6° | 6% 0.04 in0.9 mm | 32 mph51 km/h W | 80°26° | 710 ft216 m | 6:50 AM · 5:18 PM |
| Sat Nov 14 | Green flag | Clear | 54°12° 39°4° | 4% | 29 mph46 km/h WNW | 72°22° | 80 ft24 m | 6:51 AM · 5:17 PM |
Flags judge the racing hours: 9 am to 10 pm at the track for a drag strip. National Weather Service alerts raise them. Days marked partial are at the edge of the forecast. How the flags work
Every hour, every number
Today’s remaining 10 hours are free. Pro members get all seven days and the CSV.
| Hour | Air | Dew pt | Humidity | Barometer | Density alt. | Air density kg/m³ | Grains | Track temp (est.) | Wind | Rain |
|---|---|---|---|---|---|---|---|---|---|---|
| 68°20° | 41°5° | 37% | 30.04 inHg1017 hPa | 773 ft236 m | 1.198 | 37 | 92°33° | 6 mph10 km/h W | 0% | |
| 68°20° | 42°6° | 38% | 30.03 inHg1017 hPa | 824 ft251 m | 1.196 | 39 | 86°30° | 7 mph11 km/h W | 0% | |
| 68°20° | 42°5° | 38% | 30.02 inHg1017 hPa | 822 ft251 m | 1.196 | 39 | 79°26° | 7 mph11 km/h W | 0% | |
| 65°19° | 41°5° | 41% | 30.05 inHg1018 hPa | 621 ft189 m | 1.203 | 38 | 69°20° | 5 mph7 km/h WNW | 0% | |
| 61°16° | 40°4° | 45% | 30.06 inHg1018 hPa | 335 ft102 m | 1.213 | 36 | 61°16° | 3 mph5 km/h NNW | 0% | |
| 58°14° | 42°6° | 56% | 30.05 inHg1018 hPa | 129 ft39 m | 1.220 | 40 | 58°14° | 4 mph7 km/h N | 0% | |
| 56°13° | 44°6° | 63% | 30.06 inHg1018 hPa | -4 ft-1 m | 1.225 | 42 | 56°13° | 2 mph4 km/h W | 0% | |
| 55°13° | 42°6° | 62% | 30.06 inHg1018 hPa | -78 ft-24 m | 1.228 | 40 | 55°13° | 5 mph8 km/h S | 0% | |
| 53°12° | 41°5° | 64% | 30.06 inHg1018 hPa | -202 ft-62 m | 1.232 | 38 | 53°12° | 6 mph10 km/h SSW | 0% | |
| 52°11° | 42°6° | 69% | 30.03 inHg1017 hPa | -272 ft-83 m | 1.235 | 39 | 52°11° | 5 mph9 km/h SW | 0% |
Every hour from the forecast, the same arithmetic as the pit box above (NWS density-altitude formula; track temperature is an estimate). Hours are track time.
Plan the whole week at Darlington Dragway
Pit box, all week
Every forecast hour for the next seven days at Darlington Dragway: density altitude, air density, grains, track temp and more, with a CSV for the tuning laptop.
Do the models agree?
ECMWF, GFS and ICON side by side for the next three racing days, so you know when the forecast is shaky.
Next 6 hours of rain
Rain in 15-minute steps for the next six hours at your tracks, refreshed every hour.
Alerts for your tracks
An email the morning a red or yellow flag is due at Darlington Dragway, and a heads-up three days out.
A year at Darlington Dragway
Typical for November here: highs around 66°19°, lows 46°8°, rain on 21% of days.
5-year averages from the Open-Meteo archive at the track's coordinates.
Getting to Darlington Dragway
Hartsville, South Carolina
No street address published; directions go to the track itself.
We have not checked parking and camping here yet. The track’s own site has them: official site.
Facts
- Location
- Hartsville, South Carolina
- Layout
- Eighth-mile drag strip
- Length
- Eighth mile (660 ft)
- Series
- NHRA, PDRA
- Signature events
- PDRA Carolina Nationals
- Time zone
- America/New York
- Elevation
- 187 ft (57 m)