- Track temp
- 62°F17°C
- Rain chance
- 4%
- Wind
- 3mph4km/hENE
- Density alt.
- 604ft184m
- Barometer 30.30 inHg1026 hPa steady
- Humidity 84%
- Cloud 100%
- UV 0
Forecast updated · Open-Meteo
Hour by hour
OvercastTemperature 58°14°Rain chance 4%Wind 3 mph4 km/hENETrack temperature 62°17°
OvercastTemperature 56°13°Rain chance 4%Wind 5 mph8 km/hETrack temperature 56°13°OvercastTemperature 54°12°Rain chance 3%Wind 5 mph8 km/hSETrack temperature 54°12°OvercastTemperature 53°12°Rain chance 2%Wind 5 mph8 km/hESETrack temperature 53°12°OvercastTemperature 52°11°Rain chance 2%Wind 5 mph7 km/hSETrack temperature 52°11°OvercastTemperature 51°11°Rain chance 2%Wind 5 mph8 km/hSETrack temperature 51°11°OvercastTemperature 51°10°Rain chance 3%Wind 4 mph7 km/hESETrack temperature 51°10°OvercastTemperature 51°11°Rain chance 5%Wind 5 mph8 km/hESETrack temperature 51°11°OvercastTemperature 51°11°Rain chance 5%Wind 7 mph11 km/hSSWTrack temperature 51°11°OvercastTemperature 50°10°Rain chance 10%Wind 2 mph4 km/hSSWTrack temperature 50°10°OvercastTemperature 50°10°Rain chance 15%Wind 5 mph8 km/hSETrack temperature 50°10°OvercastTemperature 50°10°Rain chance 7%Wind 5 mph9 km/hSSETrack temperature 50°10°OvercastTemperature 51°11°Rain chance 10%Wind 4 mph7 km/hSSETrack temperature 51°11°OvercastTemperature 51°11°Rain chance 9%Wind 3 mph4 km/hSETrack temperature 51°11°OvercastTemperature 51°10°Rain chance 9%Wind 2 mph3 km/hNNETrack temperature 51°10°OvercastTemperature 50°10°Rain chance 10%Wind 4 mph7 km/hNETrack temperature 51°10°
Partly cloudyTemperature 52°11°Rain chance 10%Wind 3 mph5 km/hNETrack temperature 58°14°OvercastTemperature 55°13°Rain chance 10%Wind 2 mph4 km/hSTrack temperature 58°14°OvercastTemperature 55°13°Rain chance 10%Wind 2 mph3 km/hSETrack temperature 58°14°OvercastTemperature 56°13°Rain chance 10%Wind 3 mph5 km/hETrack temperature 59°15°OvercastTemperature 59°15°Rain chance 7%Wind 5 mph8 km/hESETrack temperature 72°22°OvercastTemperature 62°16°Rain chance 7%Wind 4 mph7 km/hSETrack temperature 72°22°OvercastTemperature 62°17°Rain chance 7%Wind 2 mph4 km/hSETrack temperature 67°19°OvercastTemperature 63°17°Rain chance 9%Wind 4 mph6 km/hESETrack temperature 72°22°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 3158°15° 50°10° 25%Green flag
- TomorrowNov 163°17° 50°10° 15%Green flag
- MonNov 2
62°17° 55°13° 64%Yellow flag - TueNov 371°22° 52°11° 82%Yellow flag
- WedNov 460°16° 49°9° 69%Yellow flag
- ThuNov 557°14° 51°11° 23%Green flag
- FriNov 653°12° 50°10° 21%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | Overcast | 58°15° 50°10° | 25% 0.32 in8.2 mm | 17 mph28 km/h ESE | 70°21° | 638 ft194 m | 7:27 AM · 5:52 PM |
| Tomorrow Nov 1 | Green flag | Overcast | 63°17° 50°10° | 15% | 18 mph29 km/h SE | 72°22° | 1,000 ft305 m | 6:28 AM · 4:51 PM |
| Mon Nov 2 | Yellow flaggusty wind | Light drizzle | 62°17° 55°13° | 64% 0.01 in0.3 mm | 38 mph61 km/h SSE | 63°17° | 1,341 ft409 m | 6:30 AM · 4:50 PM |
| Tue Nov 3 | Yellow flaggusty wind | Light drizzle | 71°22° 52°11° | 82% 0.03 in0.8 mm | 45 mph72 km/h SSW | 79°26° | 2,148 ft655 m | 6:31 AM · 4:48 PM |
| Wed Nov 4 | Yellow flaggusty wind | Overcast | 60°16° 49°9° | 69% | 32 mph51 km/h SW | 69°21° | 1,303 ft397 m | 6:32 AM · 4:47 PM |
| Thu Nov 5 | Green flag | Overcast | 57°14° 51°11° | 23% | 16 mph26 km/h N | 64°18° | 885 ft270 m | 6:34 AM · 4:46 PM |
| Fri Nov 6 | Green flag | Overcast | 53°12° 50°10° | 21% | 19 mph31 km/h NNE | 54°12° | 700 ft213 m | 6:35 AM · 4:45 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 58°14° | 53°12° | 84% | 30.30 inHg1026 hPa | 604 ft184 m | 1.204 | 60 | 62°17° | 3 mph4 km/h ENE | 4% | |
| 56°13° | 51°10° | 83% | 30.27 inHg1025 hPa | 493 ft150 m | 1.207 | 55 | 56°13° | 5 mph8 km/h E | 4% | |
| 54°12° | 51°10° | 87% | 30.28 inHg1025 hPa | 394 ft120 m | 1.211 | 55 | 54°12° | 5 mph8 km/h SE | 3% | |
| 53°12° | 50°10° | 88% | 30.28 inHg1026 hPa | 327 ft100 m | 1.213 | 54 | 53°12° | 5 mph8 km/h ESE · gusts 12 mph19 km/h | 2% | |
| 52°11° | 49°10° | 89% | 30.31 inHg1027 hPa | 221 ft67 m | 1.217 | 53 | 52°11° | 5 mph7 km/h SE · gusts 14 mph22 km/h | 2% | |
| 51°11° | 48°9° | 88% | 30.33 inHg1027 hPa | 136 ft41 m | 1.220 | 50 | 51°11° | 5 mph8 km/h SE · gusts 13 mph20 km/h | 2% | |
| 51°10° | 48°9° | 89% | 30.32 inHg1027 hPa | 100 ft30 m | 1.221 | 50 | 51°10° | 4 mph7 km/h ESE · gusts 12 mph19 km/h | 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 Blackhawk Farms
Pit box, all week
Every forecast hour for the next seven days at Blackhawk Farms: 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 Blackhawk Farms, and a heads-up three days out.
Getting to Blackhawk Farms
15538 Prairie Road, South Beloit, IL 61080
Camping On site
Camping is always free, tent or RV (a club may charge a gate fee); no dump station. Electric is first come, first served, paid at the Pit Stop: 50 amp $30, 30 amp $20, 20 amp $15 per event day. blackhawkfarms.com
Good to know
Weekend events open the night before at 6 p.m.; weekday events at 6 a.m. Kids 12 and under are always free. blackhawkfarms.com
From the track’s own pages, checked October 2026. Prices and rules change by event, so confirm before you go.
Facts
- Location
- South Beloit, Illinois
- Layout
- 1.95-mile, 7-turn road course
- Length
- 1.95 mi (3.14 km)
- Surface
- Asphalt
- Opened
- 1967
- Series
- Club racing
- Signature events
- SCCA and vintage racing
- Time zone
- America/Chicago
- Elevation
- 761 ft (232 m)