- Track temp
- 66°F19°C
- Rain chance
- 0%
- Wind
- 7mph11km/hWNW
- Density alt.
- -394ft-120m
- Barometer 30.42 inHg1030 hPa steady
- Humidity 42%
- Cloud 6%
- UV 1
Forecast updated · Open-Meteo
Hour by hour
ClearTemperature 60°15°Rain chance 0%Wind 7 mph11 km/hWNWTrack temperature 66°19°ClearTemperature 55°13°Rain chance 0%Wind 5 mph8 km/hWNWTrack temperature 55°13°
ClearTemperature 53°12°Rain chance 0%Wind 5 mph8 km/hWNWTrack temperature 53°12°
Partly cloudyTemperature 51°11°Rain chance 0%Wind 4 mph6 km/hWNWTrack temperature 51°11°Partly cloudyTemperature 50°10°Rain chance 0%Wind 4 mph6 km/hWNWTrack temperature 50°10°
OvercastTemperature 48°9°Rain chance 0%Wind 5 mph7 km/hWNWTrack temperature 48°9°OvercastTemperature 47°8°Rain chance 0%Wind 5 mph8 km/hWNWTrack temperature 47°8°OvercastTemperature 46°8°Rain chance 0%Wind 5 mph8 km/hWNWTrack temperature 46°8°OvercastTemperature 45°7°Rain chance 0%Wind 5 mph8 km/hNWTrack temperature 45°7°Mostly clearTemperature 44°7°Rain chance 0%Wind 4 mph7 km/hWNWTrack temperature 44°7°OvercastTemperature 44°6°Rain chance 0%Wind 5 mph8 km/hNNWTrack temperature 44°6°OvercastTemperature 43°6°Rain chance 0%Wind 5 mph8 km/hNTrack temperature 43°6°OvercastTemperature 43°6°Rain chance 0%Wind 5 mph8 km/hNTrack temperature 43°6°OvercastTemperature 43°6°Rain chance 0%Wind 5 mph8 km/hNNETrack temperature 43°6°OvercastTemperature 43°6°Rain chance 1%Wind 5 mph8 km/hNNETrack temperature 43°6°
OvercastTemperature 43°6°Rain chance 1%Wind 5 mph8 km/hNNETrack temperature 43°6°OvercastTemperature 47°8°Rain chance 1%Wind 4 mph7 km/hNNETrack temperature 50°10°
Partly cloudyTemperature 51°11°Rain chance 1%Wind 5 mph8 km/hNETrack temperature 60°16°OvercastTemperature 54°12°Rain chance 1%Wind 6 mph9 km/hNETrack temperature 65°18°OvercastTemperature 57°14°Rain chance 1%Wind 4 mph7 km/hNETrack temperature 72°22°OvercastTemperature 59°15°Rain chance 1%Wind 3 mph4 km/hNETrack temperature 78°26°OvercastTemperature 60°16°Rain chance 1%Wind 2 mph4 km/hNETrack temperature 79°26°OvercastTemperature 61°16°Rain chance 1%Wind 2 mph3 km/hNETrack temperature 80°27°OvercastTemperature 61°16°Rain chance 1%Wind 2 mph4 km/hNETrack temperature 74°23°Hours in your time zone (the track's when they match). Track temperature is an estimate.
The racer numbers
Computed from the forecast air temperature, dew point and station pressure (NWS formulas). Track temperature is estimated from sun, wind and the surface; it is not a sensor reading. How these are figured.
Day by day
- TodayOct 3161°16° 43°6° 0%Green flag
- TomorrowNov 161°16° 43°6° 1%Green flag
- MonNov 265°18° 42°5° 2%Green flag
- TueNov 370°21° 51°11° 0%Green flag
- WedNov 473°23° 54°12° 2%Green flag
- ThuNov 5
70°21° 58°15° 38%Green flag - FriNov 671°21° 63°17° 45%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | Overcast | 61°16° 43°6° | 0% | 19 mph31 km/h NNW | 78°25° | -303 ft-92 m | 7:27 AM · 6:03 PM |
| Tomorrow Nov 1 | Green flag | Overcast | 61°16° 43°6° | 1% | 11 mph18 km/h NNE | 80°27° | -414 ft-126 m | 6:28 AM · 5:02 PM |
| Mon Nov 2 | Green flag | Overcast | 65°18° 42°5° | 2% | 13 mph20 km/h S | 81°27° | 22 ft7 m | 6:29 AM · 5:01 PM |
| Tue Nov 3 | Green flag | Partly cloudy | 70°21° 51°11° | 0% | 18 mph28 km/h S | 87°30° | 544 ft166 m | 6:31 AM · 5:00 PM |
| Wed Nov 4 | Green flag | Overcast | 73°23° 54°12° | 2% | 24 mph38 km/h SSE | 87°31° | 852 ft260 m | 6:32 AM · 4:59 PM |
| Thu Nov 5 | Green flag | Light drizzle | 70°21° 58°15° | 38% 0.06 in1.5 mm | 19 mph30 km/h S | 75°24° | 1,003 ft306 m | 6:33 AM · 4:58 PM |
| Fri Nov 6 | Green flag | Overcast | 71°21° 63°17° | 45% 0.04 in0.9 mm | 19 mph31 km/h ESE | 79°26° | 1,152 ft351 m | 6:34 AM · 4:57 PM |
Flags judge the racing hours, 9 am to 10 pm at the track. Days marked partial are at the edge of the forecast.
Every hour, every number
Today’s remaining 7 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 60°15° | 36°2° | 42% | 30.42 inHg1030 hPa | -394 ft-120 m | 1.239 | 31 | 66°19° | 7 mph11 km/h WNW | 0% | |
| 55°13° | 36°2° | 48% | 30.42 inHg1030 hPa | -690 ft-210 m | 1.250 | 30 | 55°13° | 5 mph8 km/h WNW | 0% | |
| 53°12° | 35°2° | 52% | 30.45 inHg1031 hPa | -896 ft-273 m | 1.258 | 30 | 53°12° | 5 mph8 km/h WNW | 0% | |
| 51°11° | 36°2° | 56% | 30.44 inHg1031 hPa | -978 ft-298 m | 1.260 | 30 | 51°11° | 4 mph6 km/h WNW | 0% | |
| 50°10° | 36°2° | 60% | 30.46 inHg1032 hPa | -1,109 ft-338 m | 1.265 | 31 | 50°10° | 4 mph6 km/h WNW | 0% | |
| 48°9° | 37°3° | 66% | 30.45 inHg1031 hPa | -1,206 ft-368 m | 1.269 | 32 | 48°9° | 5 mph7 km/h WNW | 0% | |
| 47°8° | 38°4° | 72% | 30.47 inHg1032 hPa | -1,292 ft-394 m | 1.272 | 33 | 47°8° | 5 mph8 km/h WNW | 0% |
Every hour from the forecast, the same arithmetic as the pit box above (NWS density-altitude formula; track temperature is an estimate). Hours in your time zone, the track’s when they match.
Plan the whole week at Dover
Pit box, all week
Every forecast hour for the next seven days at Dover: 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 Dover, and a heads-up three days out.
A year at Dover
Typical for October here: highs around 69°20°, lows 53°11°, rain on 26% of days.
5-year averages from the Open-Meteo archive at the track's coordinates.
Facts
- Location
- Dover, Delaware
- Layout
- 1-mile concrete oval, the Monster Mile
- Length
- 1 mi (1.61 km)
- Surface
- Concrete
- Banking
- 24°
- Opened
- 1969
- Series
- NASCAR Cup
- Signature events
- Würth 400
- Time zone
- America/New York
- Elevation
- 33 ft (10 m)