- Track temp
- 65°F18°C
- Rain chance
- 1%
- Wind
- 6mph9km/hE · gusts 17 mph27 km/h
- Density alt.
- 813ft248m
- Barometer 30.35 inHg1028 hPa steady
- Humidity 39%
Forecast updated · Open-Meteo
Hour by hour
OvercastTemperature 62°17°Rain chance 1%Wind 6 mph9 km/hETrack temperature 65°18°
OvercastTemperature 58°15°Rain chance 3%Wind 5 mph8 km/hESETrack temperature 58°15°OvercastTemperature 56°13°Rain chance 5%Wind 4 mph6 km/hETrack temperature 56°13°OvercastTemperature 54°12°Rain chance 5%Wind 3 mph5 km/hESETrack temperature 54°12°OvercastTemperature 53°12°Rain chance 3%Wind 4 mph7 km/hSETrack temperature 53°12°OvercastTemperature 53°12°Rain chance 3%Wind 6 mph9 km/hSSETrack temperature 53°12°OvercastTemperature 52°11°Rain chance 2%Wind 4 mph6 km/hESETrack temperature 52°11°OvercastTemperature 51°11°Rain chance 2%Wind 2 mph4 km/hETrack temperature 51°11°OvercastTemperature 51°11°Rain chance 4%Wind 2 mph4 km/hENETrack temperature 51°11°OvercastTemperature 51°11°Rain chance 5%Wind 2 mph4 km/hENETrack temperature 51°11°OvercastTemperature 52°11°Rain chance 7%Wind 2 mph3 km/hESETrack temperature 52°11°OvercastTemperature 52°11°Rain chance 9%Wind 2 mph3 km/hSETrack temperature 52°11°OvercastTemperature 53°11°Rain chance 6%Wind 3 mph5 km/hSSETrack temperature 53°11°OvercastTemperature 52°11°Rain chance 5%Wind 5 mph8 km/hNTrack temperature 52°11°OvercastTemperature 51°11°Rain chance 5%Wind 6 mph9 km/hSETrack temperature 51°11°OvercastTemperature 54°12°Rain chance 5%Wind 3 mph5 km/hESETrack temperature 55°13°OvercastTemperature 59°15°Rain chance 6%Wind 6 mph10 km/hSETrack temperature 65°18°OvercastTemperature 63°17°Rain chance 5%Wind 4 mph6 km/hSSETrack temperature 75°24°OvercastTemperature 68°20°Rain chance 5%Wind 3 mph4 km/hSSETrack temperature 85°29°OvercastTemperature 71°22°Rain chance 4%Wind 2 mph4 km/hSSETrack temperature 92°33°OvercastTemperature 72°22°Rain chance 4%Wind 4 mph6 km/hSETrack temperature 87°31°OvercastTemperature 71°22°Rain chance 4%Wind 7 mph11 km/hSSETrack temperature 82°28°OvercastTemperature 71°22°Rain chance 4%Wind 5 mph8 km/hSETrack temperature 79°26°OvercastTemperature 71°22°Rain chance 4%Wind 4 mph7 km/hESETrack temperature 79°26°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 3166°19° 43°6° 5%Green flag
- TomorrowNov 172°22° 51°11° 9%Green flag
- MonNov 2
58°14° 52°11° 21%Green flag - TueNov 373°23° 49°10° 2%Green flag
- WedNov 463°17° 59°15° 53%Red flag
- ThuNov 567°20° 62°16° 50%Green flag
- FriNov 6
61°16° 56°13° 31%Red flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | Overcast | 66°19° 43°6° | 5% | 17 mph27 km/h E | 80°27° | 1,056 ft322 m | 7:57 AM · 6:33 PM |
| Tomorrow Nov 1 | Green flag | Overcast | 72°22° 51°11° | 9% | 13 mph21 km/h SE | 92°33° | 1,397 ft426 m | 6:58 AM · 5:32 PM |
| Mon Nov 2 | Green flag | Light drizzle | 58°14° 52°11° | 21% 0.1 in2.6 mm | 18 mph28 km/h SSE | 59°15° | 552 ft168 m | 6:59 AM · 5:31 PM |
| Tue Nov 3 | Green flag | Overcast | 73°23° 49°10° | 2% | 16 mph25 km/h SSE | 90°32° | 1,885 ft575 m | 7:01 AM · 5:30 PM |
| Wed Nov 4 | Red flagrain, gusty wind | Heavy drizzle | 63°17° 59°15° | 53% 1.59 in40.5 mm | 32 mph51 km/h SSE | 63°17° | 1,503 ft458 m | 7:02 AM · 5:29 PM |
| Thu Nov 5 | Green flag | Overcast | 67°20° 62°16° | 50% 0.92 in23.4 mm | 19 mph31 km/h E | 81°27° | 1,809 ft551 m | 7:03 AM · 5:28 PM |
| Fri Nov 6 | Red flagrain | Showers | 61°16° 56°13° | 31% 0.96 in24.3 mm | 31 mph49 km/h NNW | 63°17° | 1,520 ft463 m | 7:04 AM · 5:27 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 6 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 62°17° | 37°3° | 39% | 30.35 inHg1028 hPa | 813 ft248 m | 1.196 | 33 | 65°18° | 6 mph9 km/h E · gusts 17 mph27 km/h | 1% | |
| 58°15° | 36°2° | 44% | 30.37 inHg1029 hPa | 513 ft156 m | 1.207 | 32 | 58°15° | 5 mph8 km/h ESE · gusts 13 mph22 km/h | 3% | |
| 56°13° | 35°2° | 46% | 30.38 inHg1029 hPa | 356 ft109 m | 1.212 | 31 | 56°13° | 4 mph6 km/h E · gusts 12 mph19 km/h | 5% | |
| 54°12° | 35°2° | 48% | 30.38 inHg1029 hPa | 262 ft80 m | 1.216 | 30 | 54°12° | 3 mph5 km/h ESE · gusts 12 mph19 km/h | 5% | |
| 53°12° | 35°1° | 49% | 30.37 inHg1029 hPa | 200 ft61 m | 1.218 | 30 | 53°12° | 4 mph7 km/h SE · gusts 12 mph19 km/h | 3% | |
| 53°12° | 34°1° | 48% | 30.37 inHg1029 hPa | 182 ft55 m | 1.218 | 29 | 53°12° | 6 mph9 km/h SSE | 3% |
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 Atomic
Pit box, all week
Every forecast hour for the next seven days at Atomic: 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 Atomic, and a heads-up three days out.
Getting to Atomic
Chillicothe, Ohio
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
- Chillicothe, Ohio
- Layout
- 3/8-mile high-banked dirt oval
- Length
- 0.375 mi (0.60 km)
- Surface
- Dirt
- Banking
- high-banked
- Series
- Super Late Models, Sprint Cars, World of Outlaws Sprint Cars, World of Outlaws Late Models, Lucas Oil Late Model Dirt Series
- Signature events
- Independence 50
- Time zone
- America/New York
- Elevation
- 804 ft (245 m)