- Track temp
- 67°F20°C
- Rain chance
- 1%
- Wind
- 4mph7km/hE
- Density alt.
- 939ft286m
- Barometer 30.23 inHg1024 hPa steady
- Humidity 57%
Forecast updated · Open-Meteo
Hour by hour
OvercastTemperature 67°20°Rain chance 1%Wind 4 mph7 km/hETrack temperature 67°20°
OvercastTemperature 66°19°Rain chance 4%Wind 6 mph9 km/hETrack temperature 66°19°OvercastTemperature 65°19°Rain chance 7%Wind 8 mph13 km/hESETrack temperature 65°19°OvercastTemperature 65°18°Rain chance 6%Wind 6 mph9 km/hETrack temperature 65°18°OvercastTemperature 64°18°Rain chance 10%Wind 8 mph12 km/hESETrack temperature 64°18°OvercastTemperature 64°18°Rain chance 22%Wind 7 mph11 km/hSETrack temperature 64°18°OvercastTemperature 64°18°Rain chance 45%Wind 11 mph18 km/hSSETrack temperature 64°18°OvercastTemperature 62°17°Rain chance 40%Wind 7 mph11 km/hSSETrack temperature 62°17°
Light drizzleTemperature 61°16°Rain chance 29%Wind 7 mph12 km/hSSETrack temperature 61°16°OvercastTemperature 61°16°Rain chance 18%Wind 8 mph13 km/hSSETrack temperature 61°16°OvercastTemperature 61°16°Rain chance 22%Wind 5 mph7 km/hSSETrack temperature 61°16°OvercastTemperature 61°16°Rain chance 22%Wind 7 mph12 km/hESETrack temperature 61°16°OvercastTemperature 61°16°Rain chance 18%Wind 6 mph10 km/hSETrack temperature 61°16°OvercastTemperature 61°16°Rain chance 21%Wind 5 mph8 km/hESETrack temperature 61°16°OvercastTemperature 61°16°Rain chance 24%Wind 4 mph7 km/hSETrack temperature 61°16°OvercastTemperature 61°16°Rain chance 24%Wind 7 mph11 km/hESETrack temperature 62°17°OvercastTemperature 62°17°Rain chance 22%Wind 8 mph12 km/hSETrack temperature 62°17°OvercastTemperature 62°17°Rain chance 14%Wind 7 mph11 km/hSETrack temperature 63°17°OvercastTemperature 62°17°Rain chance 12%Wind 9 mph15 km/hSETrack temperature 66°19°OvercastTemperature 62°17°Rain chance 6%Wind 9 mph14 km/hSSETrack temperature 65°19°OvercastTemperature 60°16°Rain chance 4%Wind 9 mph15 km/hSETrack temperature 62°17°OvercastTemperature 60°16°Rain chance 4%Wind 8 mph13 km/hSSETrack temperature 61°16°OvercastTemperature 60°16°Rain chance 4%Wind 7 mph12 km/hSETrack temperature 61°16°OvercastTemperature 60°15°Rain chance 3%Wind 7 mph12 km/hSSETrack temperature 60°16°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 3170°21° 59°15° 22%Green flag
- TomorrowNov 164°18° 59°15° 45%Green flag
- MonNov 270°21° 58°15° 7%Yellow flag
- TueNov 375°24° 64°18° 71%Red flag
- WedNov 470°21° 61°16° 60%Green flag
- ThuNov 562°16° 53°12° 15%Red flag
- FriNov 655°13° 52°11° 11%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | Overcast | 70°21° 59°15° | 22% | 18 mph28 km/h E | 84°29° | 1,143 ft348 m | 7:24 AM · 6:02 PM |
| Tomorrow Nov 1 | Green flag | Light drizzle | 64°18° 59°15° | 45% 0.03 in0.8 mm | 25 mph40 km/h SE | 66°19° | 615 ft187 m | 6:25 AM · 5:01 PM |
| Mon Nov 2 | Yellow flaggusty wind | Overcast | 70°21° 58°15° | 7% | 38 mph62 km/h SSE | 76°24° | 1,454 ft443 m | 6:26 AM · 5:00 PM |
| Tue Nov 3 | Red flagrain | Heavy drizzle | 75°24° 64°18° | 71% 0.46 in11.8 mm | 41 mph66 km/h S | 81°27° | 1,892 ft577 m | 6:27 AM · 4:59 PM |
| Wed Nov 4 | Green flag | Light drizzle | 70°21° 61°16° | 60% 1.57 in39.8 mm | 17 mph27 km/h SSW | 78°25° | 1,565 ft477 m | 6:28 AM · 4:58 PM |
| Thu Nov 5 | Red flagrain | Heavy drizzle | 62°16° 53°12° | 15% 0.77 in19.6 mm | 13 mph21 km/h NNW | 62°17° | 811 ft247 m | 6:29 AM · 4:57 PM |
| Fri Nov 6 | Green flag | Overcast | 55°13° 52°11° | 11% 0.08 in2 mm | 11 mph18 km/h WNW | 58°14° | 528 ft161 m | 6:31 AM · 4:56 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 67°20° | 52°11° | 57% | 30.23 inHg1024 hPa | 939 ft286 m | 1.192 | 57 | 67°20° | 4 mph7 km/h E | 1% | |
| 66°19° | 50°10° | 55% | 30.23 inHg1024 hPa | 861 ft262 m | 1.194 | 53 | 66°19° | 6 mph9 km/h E · gusts 13 mph21 km/h | 4% | |
| 65°19° | 51°10° | 59% | 30.23 inHg1024 hPa | 812 ft247 m | 1.196 | 55 | 65°19° | 8 mph13 km/h ESE · gusts 16 mph26 km/h | 7% | |
| 65°18° | 52°11° | 63% | 30.27 inHg1025 hPa | 719 ft219 m | 1.199 | 57 | 65°18° | 6 mph9 km/h E · gusts 14 mph23 km/h | 6% | |
| 64°18° | 52°11° | 65% | 30.27 inHg1025 hPa | 701 ft214 m | 1.200 | 59 | 64°18° | 8 mph12 km/h ESE · gusts 15 mph24 km/h | 10% | |
| 64°18° | 53°12° | 68% | 30.27 inHg1025 hPa | 678 ft207 m | 1.201 | 60 | 64°18° | 7 mph11 km/h SE · gusts 18 mph28 km/h | 22% |
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 Belle-Clair
Pit box, all week
Every forecast hour for the next seven days at Belle-Clair: 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 Belle-Clair, and a heads-up three days out.
Getting to Belle-Clair
Belleville, Illinois
No street address published; directions go to the track itself.
We have not checked parking and camping here yet.
Facts
- Location
- Belleville, Illinois
- Layout
- 1/4-mile high-banked dirt oval at the Belle-Clair Fairgrounds
- Length
- 0.25 mi (0.40 km)
- Surface
- Dirt
- Banking
- high-banked
- Series
- World of Outlaws Sprint Cars
- Time zone
- America/Chicago
- Elevation
- 472 ft (144 m)