- Track temp
- 36°F2°C
- Rain chance
- 0%
- Wind
- 3mph5km/hNNE
- Density alt.
- -815ft-248m
- Barometer 30.39 inHg1029 hPa steady
- Humidity 60%
Forecast updated · Open-Meteo
Hour by hour
ClearTemperature 36°2°Rain chance 0%Wind 3 mph5 km/hNNETrack temperature 36°2°ClearTemperature 35°2°Rain chance 0%Wind 0 mph1 km/hSWTrack temperature 35°2°ClearTemperature 34°1°Rain chance 0%Wind 1 mph2 km/hSSETrack temperature 34°1°ClearTemperature 34°1°Rain chance 0%Wind 2 mph3 km/hSSETrack temperature 34°1°ClearTemperature 34°1°Rain chance 0%Wind 3 mph4 km/hSSETrack temperature 34°1°ClearTemperature 34°1°Rain chance 0%Wind 3 mph5 km/hSTrack temperature 34°1°ClearTemperature 34°1°Rain chance 0%Wind 3 mph5 km/hSSWTrack temperature 34°1°ClearTemperature 34°1°Rain chance 0%Wind 2 mph4 km/hSSETrack temperature 34°1°ClearTemperature 34°1°Rain chance 0%Wind 4 mph6 km/hSETrack temperature 34°1°ClearTemperature 33°1°Rain chance 0%Wind 4 mph6 km/hSETrack temperature 33°1°ClearTemperature 33°1°Rain chance 0%Wind 4 mph6 km/hSETrack temperature 33°1°ClearTemperature 33°1°Rain chance 0%Wind 4 mph7 km/hSETrack temperature 33°1°ClearTemperature 33°1°Rain chance 0%Wind 4 mph7 km/hSETrack temperature 33°1°
ClearTemperature 33°1°Rain chance 0%Wind 5 mph8 km/hSETrack temperature 34°1°ClearTemperature 37°3°Rain chance 0%Wind 4 mph6 km/hSETrack temperature 43°6°ClearTemperature 42°6°Rain chance 0%Wind 1 mph1 km/hSSWTrack temperature 58°14°ClearTemperature 46°8°Rain chance 0%Wind 3 mph4 km/hNWTrack temperature 66°19°ClearTemperature 48°9°Rain chance 0%Wind 3 mph5 km/hNWTrack temperature 71°22°ClearTemperature 51°11°Rain chance 0%Wind 5 mph8 km/hNWTrack temperature 73°23°ClearTemperature 54°12°Rain chance 0%Wind 6 mph9 km/hWNWTrack temperature 74°23°ClearTemperature 55°13°Rain chance 0%Wind 7 mph12 km/hWNWTrack temperature 71°22°ClearTemperature 56°13°Rain chance 0%Wind 6 mph10 km/hWTrack temperature 67°19°ClearTemperature 53°12°Rain chance 0%Wind 3 mph5 km/hSWTrack temperature 58°14°ClearTemperature 49°9°Rain chance 0%Wind 7 mph11 km/hSSWTrack temperature 49°9°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
44°7° 34°1° 2%Yellow flag - TomorrowNov 156°13° 33°1° 1%Green flag
- MonNov 265°18° 46°8° 2%Green flag
- TueNov 364°18° 46°8° 16%Green flag
- WedNov 470°21° 48°9° 16%Green flag
- ThuNov 567°20° 50°10° 38%Green flag
- FriNov 6
58°15° 53°12° 42%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Yellow flagcold | Overcast | 44°7° 34°1° | 2% | 26 mph42 km/h NW | 62°17° | -229 ft-70 m | 7:24 AM · 5:42 PM |
| Tomorrow Nov 1 | Green flag | Clear | 56°13° 33°1° | 1% | 15 mph25 km/h S | 74°23° | 539 ft164 m | 6:25 AM · 4:41 PM |
| Mon Nov 2 | Green flag | Overcast | 65°18° 46°8° | 2% | 15 mph25 km/h SSW | 85°29° | 1,270 ft387 m | 6:26 AM · 4:40 PM |
| Tue Nov 3 | Green flag | Overcast | 64°18° 46°8° | 16% | 6 mph10 km/h S | 79°26° | 1,290 ft393 m | 6:28 AM · 4:38 PM |
| Wed Nov 4 | Green flag | Overcast | 70°21° 48°9° | 16% | 17 mph27 km/h S | 86°30° | 1,832 ft558 m | 6:29 AM · 4:37 PM |
| Thu Nov 5 | Green flag | Overcast | 67°20° 50°10° | 38% | 19 mph31 km/h SSW | 84°29° | 1,871 ft570 m | 6:31 AM · 4:36 PM |
| Fri Nov 6 | Green flag | Drizzle | 58°15° 53°12° | 42% 0.17 in4.4 mm | 13 mph21 km/h SSE | 61°16° | 1,192 ft363 m | 6:32 AM · 4:35 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 5 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 36°2° | 23°-5° | 60% | 30.39 inHg1029 hPa | -815 ft-248 m | 1.254 | 19 | 36°2° | 3 mph5 km/h NNE | 0% | |
| 35°2° | 22°-5° | 60% | 30.40 inHg1029 hPa | -883 ft-269 m | 1.257 | 18 | 35°2° | 0 mph1 km/h SW | 0% | |
| 34°1° | 22°-5° | 62% | 30.42 inHg1030 hPa | -951 ft-290 m | 1.259 | 18 | 34°1° | 1 mph2 km/h SSE | 0% | |
| 34°1° | 22°-5° | 63% | 30.45 inHg1031 hPa | -1,004 ft-306 m | 1.261 | 18 | 34°1° | 2 mph3 km/h SSE | 0% | |
| 34°1° | 22°-6° | 62% | 30.45 inHg1031 hPa | -1,014 ft-309 m | 1.262 | 18 | 34°1° | 3 mph4 km/h SSE | 0% |
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 Thunder Road
Pit box, all week
Every forecast hour for the next seven days at Thunder Road: 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 Thunder Road, and a heads-up three days out.
Getting to Thunder Road
We have not checked parking and camping here yet. The track’s own site has them: official site.
Facts
- Location
- Barre, Vermont
- Layout
- 1/4-mile paved oval
- Length
- 0.25 mi (0.40 km)
- Surface
- Asphalt
- Banking
- 15°
- Opened
- 1960
- Series
- Late Models, Flying Tigers, Street Stocks, Road Warriors, American-Canadian Tour
- Signature events
- Vermont Milk Bowl
- Time zone
- America/New York
- Elevation
- 961 ft (293 m)