- Track temp
- 67°F19°C
- Rain chance
- 15%
- Wind
- 5mph8km/hENE
- Density alt.
- 981ft299m
- Barometer 30.24 inHg1024 hPa steady
- Humidity 58%
Forecast updated · Open-Meteo
Hour by hour
OvercastTemperature 65°19°Rain chance 15%Wind 5 mph8 km/hENETrack temperature 67°19°OvercastTemperature 63°17°Rain chance 19%Wind 5 mph8 km/hENETrack temperature 63°17°
OvercastTemperature 62°17°Rain chance 19%Wind 3 mph5 km/hETrack temperature 62°17°
Light drizzleTemperature 62°17°Rain chance 16%Wind 5 mph8 km/hSETrack temperature 62°17°OvercastTemperature 61°16°Rain chance 11%Wind 5 mph8 km/hESETrack temperature 61°16°OvercastTemperature 60°16°Rain chance 8%Wind 4 mph7 km/hESETrack temperature 60°16°OvercastTemperature 60°15°Rain chance 8%Wind 4 mph7 km/hSETrack temperature 60°15°OvercastTemperature 59°15°Rain chance 8%Wind 5 mph8 km/hSETrack temperature 59°15°OvercastTemperature 59°15°Rain chance 9%Wind 4 mph7 km/hSETrack temperature 59°15°OvercastTemperature 58°15°Rain chance 12%Wind 8 mph13 km/hSETrack temperature 58°15°OvercastTemperature 58°15°Rain chance 15%Wind 4 mph6 km/hESETrack temperature 58°15°OvercastTemperature 58°14°Rain chance 21%Wind 5 mph8 km/hESETrack temperature 58°14°OvercastTemperature 58°14°Rain chance 26%Wind 7 mph11 km/hSETrack temperature 58°14°OvercastTemperature 58°14°Rain chance 33%Wind 7 mph11 km/hSETrack temperature 58°14°OvercastTemperature 58°15°Rain chance 29%Wind 6 mph9 km/hSETrack temperature 58°15°OvercastTemperature 59°15°Rain chance 25%Wind 6 mph9 km/hSETrack temperature 59°15°OvercastTemperature 60°16°Rain chance 21%Wind 7 mph11 km/hSSETrack temperature 61°16°OvercastTemperature 61°16°Rain chance 21%Wind 9 mph14 km/hSSETrack temperature 63°17°OvercastTemperature 61°16°Rain chance 13%Wind 10 mph15 km/hSSETrack temperature 64°18°OvercastTemperature 61°16°Rain chance 14%Wind 11 mph17 km/hSSETrack temperature 64°18°OvercastTemperature 61°16°Rain chance 15%Wind 12 mph20 km/hSSETrack temperature 65°18°OvercastTemperature 61°16°Rain chance 11%Wind 11 mph17 km/hSSETrack temperature 64°18°OvercastTemperature 60°16°Rain chance 10%Wind 9 mph14 km/hSSETrack temperature 62°17°OvercastTemperature 61°16°Rain chance 9%Wind 8 mph13 km/hSSETrack temperature 63°17°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 3169°20° 53°12° 19%Green flag
- TomorrowNov 161°16° 57°14° 33%Green flag
- MonNov 267°20° 56°13° 16%Yellow flag
- TueNov 370°21° 57°14° 69%Red flag
- WedNov 470°21° 54°12° 44%Green flag
- ThuNov 564°18° 50°10° 14%Green flag
- FriNov 656°14° 54°12° 9%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | Light drizzle | 69°20° 53°12° | 19% 0.02 in0.4 mm | 15 mph24 km/h E | 81°27° | 1,211 ft369 m | 7:27 AM · 6:01 PM |
| Tomorrow Nov 1 | Green flag | Overcast | 61°16° 57°14° | 33% | 24 mph39 km/h SE | 65°18° | 736 ft224 m | 6:28 AM · 5:00 PM |
| Mon Nov 2 | Yellow flaggusty wind | Overcast | 67°20° 56°13° | 16% | 39 mph63 km/h SSE | 71°22° | 1,533 ft467 m | 6:29 AM · 4:59 PM |
| Tue Nov 3 | Red flagrain, gusty wind | Heavy drizzle | 70°21° 57°14° | 69% 0.22 in5.5 mm | 46 mph74 km/h S | 73°23° | 1,811 ft552 m | 6:30 AM · 4:58 PM |
| Wed Nov 4 | Green flag | Overcast | 70°21° 54°12° | 44% | 16 mph25 km/h W | 86°30° | 1,718 ft524 m | 6:32 AM · 4:57 PM |
| Thu Nov 5 | Green flag | Overcast | 64°18° 50°10° | 14% | 13 mph20 km/h N | 79°26° | 1,194 ft364 m | 6:33 AM · 4:56 PM |
| Fri Nov 6 | Green flag | Overcast | 56°14° 54°12° | 9% | 12 mph19 km/h N | 59°15° | 786 ft240 m | 6:34 AM · 4:55 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 65°19° | 50°10° | 58% | 30.24 inHg1024 hPa | 981 ft299 m | 1.190 | 54 | 67°19° | 5 mph8 km/h ENE | 15% | |
| 63°17° | 50°10° | 62% | 30.27 inHg1025 hPa | 805 ft245 m | 1.196 | 54 | 63°17° | 5 mph8 km/h ENE | 19% | |
| 62°17° | 49°9° | 62% | 30.28 inHg1026 hPa | 719 ft219 m | 1.199 | 52 | 62°17° | 3 mph5 km/h E | 19% | |
| 62°17° | 49°9° | 62% | 30.29 inHg1026 hPa | 690 ft210 m | 1.200 | 51 | 62°17° | 5 mph8 km/h SE | 16% | |
| 61°16° | 49°9° | 64% | 30.28 inHg1025 hPa | 654 ft199 m | 1.202 | 51 | 61°16° | 5 mph8 km/h ESE | 11% | |
| 60°16° | 49°10° | 66% | 30.28 inHg1025 hPa | 618 ft188 m | 1.203 | 52 | 60°16° | 4 mph7 km/h ESE | 8% | |
| 60°15° | 49°9° | 67% | 30.29 inHg1026 hPa | 552 ft168 m | 1.205 | 51 | 60°15° | 4 mph7 km/h SE | 8% |
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 Jacksonville
Pit box, all week
Every forecast hour for the next seven days at Jacksonville: 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 Jacksonville, and a heads-up three days out.
Getting to Jacksonville
Jacksonville, Illinois
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
- Jacksonville, Illinois
- Layout
- 1/4-mile high-banked dirt oval
- Length
- 0.25 mi (0.40 km)
- Surface
- Dirt
- Banking
- high-banked
- Opened
- 1949
- Series
- Sprint Cars, 305 Sprints, Micro Sprints, Late Models, Modifieds, World of Outlaws Sprint Cars
- Signature events
- Ron Milton Race of Champions
- Time zone
- America/Chicago
- Elevation
- 633 ft (193 m)