69°20°OvercastFeels like 59°15° · Dew point 35°2°
- Track temp
- 76°F24°C
- Rain chance
- 1%
- Wind
- 12mph19km/hE · gusts 19 mph31 km/h
- Density alt.
- 1,500ft457m
- Barometer 30.30 inHg1026 hPa falling
- Humidity 29%
- Cloud 100%
- UV 1
Forecast updated · Open-Meteo
Next 24 hours
The week Hour by hour
NowOvercastTemperature 69°20°Rain chance 1%Wind 12 mph19 km/hETrack temperature 76°24°
OvercastTemperature 69°20°Rain chance 1%Wind 12 mph19 km/hETrack temperature 76°24°OvercastTemperature 66°19°Rain chance 0%Wind 9 mph15 km/hETrack temperature 69°21°
OvercastTemperature 63°17°Rain chance 0%Wind 7 mph12 km/hENETrack temperature 63°17°OvercastTemperature 62°16°Rain chance 1%Wind 9 mph14 km/hENETrack temperature 62°16°OvercastTemperature 61°16°Rain chance 1%Wind 10 mph15 km/hENETrack temperature 61°16°OvercastTemperature 60°15°Rain chance 1%Wind 10 mph15 km/hENETrack temperature 60°15°OvercastTemperature 59°15°Rain chance 0%Wind 11 mph18 km/hENETrack temperature 59°15°OvercastTemperature 58°15°Rain chance 2%Wind 10 mph17 km/hENETrack temperature 58°15°OvercastTemperature 59°15°Rain chance 6%Wind 11 mph17 km/hENETrack temperature 59°15°
Light drizzleTemperature 57°14°Rain chance 9%Wind 12 mph20 km/hENETrack temperature 57°14°OvercastTemperature 56°13°Rain chance 16%Wind 12 mph19 km/hENETrack temperature 56°13°OvercastTemperature 54°12°Rain chance 41%Wind 8 mph14 km/hNETrack temperature 54°12°OvercastTemperature 53°12°Rain chance 45%Wind 10 mph17 km/hENETrack temperature 53°12°Light drizzleTemperature 53°12°Rain chance 35%Wind 14 mph23 km/hENETrack temperature 53°12°OvercastTemperature 52°11°Rain chance 21%Wind 14 mph23 km/hENETrack temperature 52°11°OvercastTemperature 52°11°Rain chance 23%Wind 8 mph13 km/hENETrack temperature 52°11°OvercastTemperature 53°12°Rain chance 15%Wind 5 mph9 km/hENETrack temperature 53°12°OvercastTemperature 53°12°Rain chance 10%Wind 12 mph19 km/hNETrack temperature 53°12°OvercastTemperature 56°13°Rain chance 9%Wind 12 mph19 km/hENETrack temperature 65°18°OvercastTemperature 55°13°Rain chance 14%Wind 10 mph16 km/hENETrack temperature 59°15°OvercastTemperature 55°13°Rain chance 14%Wind 12 mph19 km/hENETrack temperature 58°14°OvercastTemperature 58°14°Rain chance 15%Wind 15 mph23 km/hENETrack temperature 71°22°OvercastTemperature 55°13°Rain chance 15%Wind 10 mph16 km/hENETrack temperature 57°14°OvercastTemperature 55°13°Rain chance 14%Wind 10 mph16 km/hENETrack temperature 57°14°Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude1,500ft457mField elevation 997 ft
Air density1.172kg/m³95.7% of standard (RAD)
Water grains31grgrains per lb of dry air
Track temp (est.)76°F24°CAsphalt in 217 W/m² sun
Dew point35°F2°C29% humidity
Barometer30.30inHg1026hPaFalling over 3 h
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.
This week
Day by day
- TodayOct 3169°21° 57°14° 1%Yellow flag
- TomorrowNov 159°15° 52°11° 45%Yellow flag
- MonNov 273°23° 51°11° 19%Yellow flag
- TueNov 371°21° 56°14° 6%Yellow flag
- WedNov 470°21° 62°17° 60%Yellow flag
- ThuNov 566°19° 63°17° 60%Green flag
- FriNov 673°23° 61°16° 15%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Yellow flaggusty wind | Overcast | 69°21° 57°14° | 1% | 32 mph51 km/h ENE | 91°33° | 1,529 ft466 m | 7:53 AM · 6:44 PM |
| Tomorrow Nov 1 | Yellow flaggusty wind | Light drizzle | 59°15° 52°11° | 45% 0.05 in1.2 mm | 30 mph49 km/h ENE | 71°22° | 754 ft230 m | 6:54 AM · 5:43 PM |
| Mon Nov 2 | Yellow flaggusty wind | Overcast | 73°23° 51°11° | 19% | 26 mph42 km/h ENE | 93°34° | 1,959 ft597 m | 6:55 AM · 5:42 PM |
| Tue Nov 3 | Yellow flaggusty wind | Overcast | 71°21° 56°14° | 6% | 28 mph45 km/h E | 85°29° | 1,950 ft594 m | 6:56 AM · 5:41 PM |
| Wed Nov 4 | Yellow flaggusty wind | Drizzle | 70°21° 62°17° | 60% 0.4 in10.2 mm | 29 mph46 km/h E | 78°25° | 2,193 ft668 m | 6:56 AM · 5:40 PM |
| Thu Nov 5 | Green flag | Light drizzle | 66°19° 63°17° | 60% 0.87 in22.1 mm | 18 mph29 km/h ENE | 69°20° | 1,982 ft604 m | 6:57 AM · 5:39 PM |
| Fri Nov 6 | Green flag | Light drizzle | 73°23° 61°16° | 15% 0.07 in1.7 mm | 18 mph29 km/h WNW | 92°34° | 2,529 ft771 m | 6:58 AM · 5:39 PM |
Flags judge the racing hours, 9 am to 10 pm at the track. Days marked partial are at the edge of the forecast.
Pit box, all week
Pro 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 69°20° | 35°2° | 29% | 30.30 inHg1026 hPa | 1,500 ft457 m | 1.172 | 31 | 76°24° | 12 mph19 km/h E · gusts 19 mph31 km/h | 1% | |
| 66°19° | 32°0° | 28% | 30.29 inHg1026 hPa | 1,326 ft404 m | 1.178 | 27 | 69°21° | 9 mph15 km/h E · gusts 20 mph32 km/h | 0% | |
| 63°17° | 34°1° | 33% | 30.29 inHg1026 hPa | 1,149 ft350 m | 1.184 | 29 | 63°17° | 7 mph12 km/h ENE | 0% | |
| 62°16° | 36°2° | 39% | 30.29 inHg1026 hPa | 1,063 ft324 m | 1.187 | 32 | 62°16° | 9 mph14 km/h ENE · gusts 16 mph26 km/h | 1% | |
| 61°16° | 36°2° | 40% | 30.32 inHg1027 hPa | 986 ft301 m | 1.190 | 32 | 61°16° | 10 mph15 km/h ENE · gusts 17 mph27 km/h | 1% | |
| 60°15° | 40°4° | 47% | 30.34 inHg1028 hPa | 904 ft276 m | 1.193 | 37 | 60°15° | 10 mph15 km/h ENE · gusts 17 mph27 km/h | 1% | |
| 59°15° | 40°4° | 48% | 30.37 inHg1028 hPa | 854 ft260 m | 1.195 | 37 | 59°15° | 11 mph18 km/h ENE · gusts 19 mph30 km/h | 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.
Raceway Weather Pro
Plan the whole week at Road Atlanta
Pit box, all week
Every forecast hour for the next seven days at Road Atlanta: 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.
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An email the morning a red or yellow flag is due at Road Atlanta, and a heads-up three days out.
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The track
Facts
- Location
- Braselton, Georgia
- Layout
- 2.54-mile, 12-turn road course
- Length
- 2.54 mi (4.09 km)
- Surface
- Asphalt
- Opened
- 1970
- Series
- IMSA
- Signature events
- Motul Petit Le Mans
- Time zone
- America/New York
- Elevation
- 997 ft (304 m)
