
- Track temp
- 65°F18°C
- Rain chance
- 1%
- Wind
- 4mph6km/hNE
- Density alt.
- 834ft254m
- Barometer 30.44 inHg1031 hPa falling
- Humidity 49%
- Cloud 18%
- UV 1
Forecast updated · Open-Meteo
Hour by hour
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 31
56°14° 36°2° 2%Yellow flag
- TomorrowNov 1
64°18° 43°6° 5%Green flag
- MonNov 2
58°15° 47°9° 11%Green flag
- TueNov 3
68°20° 48°9° 2%Green flag
- WedNov 4
72°22° 51°11° 45%Yellow flag
- ThuNov 5
60°16° 58°15° 51%Red flag
- FriNov 6
63°17° 58°14° 37%Red flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Yellow flagcold | 56°14° 36°2° | 2% | 10 mph17 km/h NNE | 78°26° | 834 ft254 m | 7:47 AM · 6:18 PM | |
| Tomorrow Nov 1 | Green flag | 64°18° 43°6° | 5% | 13 mph21 km/h E | 79°26° | 1,353 ft412 m | 6:48 AM · 5:16 PM | |
| Mon Nov 2 | Green flag | 58°15° 47°9° | 11% | 17 mph28 km/h S | 67°19° | 1,108 ft338 m | 6:49 AM · 5:15 PM | |
| Tue Nov 3 | Green flag | 68°20° 48°9° | 2% | 11 mph18 km/h SSE | 84°29° | 1,966 ft599 m | 6:50 AM · 5:14 PM | |
| Wed Nov 4 | Yellow flaggusty wind | 72°22° 51°11° | 45% 0.05 in1.2 mm | 29 mph46 km/h SSE | 85°29° | 2,426 ft739 m | 6:51 AM · 5:13 PM | |
| Thu Nov 5 | Red flagrain | 60°16° 58°15° | 51% 0.21 in5.4 mm | 25 mph40 km/h S | 61°16° | 1,790 ft546 m | 6:53 AM · 5:12 PM | |
| Fri Nov 6 | Red flagrain | 63°17° 58°14° | 37% 1.31 in33.2 mm | 30 mph48 km/h E | 68°20° | 2,174 ft663 m | 6:54 AM · 5:11 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 56°13° | 37°3° | 49% | 30.44 inHg1031 hPa | 834 ft254 m | 1.195 | 33 | 65°18° | 4 mph6 km/h NE | 1% | |
| 54°12° | 37°3° | 52% | 30.44 inHg1031 hPa | 690 ft210 m | 1.200 | 33 | 55°13° | 3 mph5 km/h ENE | 1% | |
| 52°11° | 37°3° | 57% | 30.46 inHg1032 hPa | 537 ft164 m | 1.206 | 33 | 52°11° | 2 mph3 km/h E | 1% | |
| 49°9° | 36°2° | 60% | 30.44 inHg1031 hPa | 374 ft114 m | 1.212 | 31 | 49°9° | 4 mph7 km/h ENE | 0% | |
| 47°8° | 34°1° | 60% | 30.43 inHg1031 hPa | 264 ft80 m | 1.216 | 29 | 47°8° | 4 mph7 km/h NE | 0% | |
| 46°8° | 32°0° | 59% | 30.46 inHg1031 hPa | 158 ft48 m | 1.219 | 28 | 46°8° | 2 mph4 km/h NNE | 1% | |
| 46°8° | 31°0° | 58% | 30.47 inHg1032 hPa | 105 ft32 m | 1.221 | 27 | 46°8° | 3 mph6 km/h NE | 1% |
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 Lernerville
Pit box, all week
Every forecast hour for the next seven days at Lernerville: 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 Lernerville, and a heads-up three days out.
Facts
- Location
- Sarver, Pennsylvania
- Layout
- 0.4-mile dirt oval, the Action Track
- Length
- 0.4 mi (0.64 km)
- Surface
- Dirt
- Banking
- semi-banked
- Opened
- 1967
- Series
- World of Outlaws, Late Models
- Signature events
- Commonwealth Clash, Firecracker 100
- Time zone
- America/New York
- Elevation
- 1,224 ft (373 m)