61°16°Partly cloudyFeels like 49°10° · Dew point 42°6°
- Track temp
- 75°F24°C
- Rain chance
- 7%
- Wind
- 18mph30km/hS
- Density alt.
- 5,477ft1,669m
- Barometer 30.03 inHg1017 hPa steady
- Humidity 50%
- Cloud 50%
- UV 3
Forecast updated · Open-Meteo
Next 24 hours
The week Hour by hour
NowPartly cloudyTemperature 61°16°Rain chance 7%Wind 18 mph30 km/hSTrack temperature 75°24°
Partly cloudyTemperature 61°16°Rain chance 7%Wind 18 mph30 km/hSTrack temperature 75°24°
OvercastTemperature 60°16°Rain chance 4%Wind 17 mph27 km/hSTrack temperature 67°20°OvercastTemperature 60°16°Rain chance 3%Wind 12 mph20 km/hSTrack temperature 66°19°OvercastTemperature 57°14°Rain chance 2%Wind 6 mph10 km/hSTrack temperature 59°15°
OvercastTemperature 55°13°Rain chance 2%Wind 6 mph10 km/hSTrack temperature 55°13°OvercastTemperature 53°12°Rain chance 3%Wind 8 mph13 km/hSSETrack temperature 53°12°OvercastTemperature 53°11°Rain chance 7%Wind 7 mph12 km/hSSWTrack temperature 53°11°
Light drizzleTemperature 52°11°Rain chance 24%Wind 11 mph18 km/hSSWTrack temperature 52°11°OvercastTemperature 51°11°Rain chance 44%Wind 6 mph10 km/hSTrack temperature 51°11°OvercastTemperature 50°10°Rain chance 45%Wind 2 mph3 km/hWTrack temperature 50°10°
Light rainTemperature 49°10°Rain chance 54%Wind 6 mph9 km/hSTrack temperature 49°10°OvercastTemperature 49°10°Rain chance 71%Wind 4 mph7 km/hSETrack temperature 49°10°OvercastTemperature 49°10°Rain chance 82%Wind 4 mph6 km/hSWTrack temperature 49°10°OvercastTemperature 49°10°Rain chance 88%Wind 7 mph11 km/hSWTrack temperature 49°10°Light drizzleTemperature 49°10°Rain chance 88%Wind 4 mph6 km/hSSWTrack temperature 49°10°Light rainTemperature 49°9°Rain chance 88%Wind 3 mph4 km/hSSWTrack temperature 49°9°Light drizzleTemperature 48°9°Rain chance 89%Wind 5 mph8 km/hETrack temperature 48°9°DrizzleTemperature 48°9°Rain chance 90%Wind 3 mph4 km/hENETrack temperature 48°9°Heavy drizzleTemperature 48°9°Rain chance 87%Wind 0 mph1 km/hSWTrack temperature 50°10°DrizzleTemperature 49°10°Rain chance 82%Wind 3 mph5 km/hWNWTrack temperature 54°12°
Light rainTemperature 50°10°Rain chance 78%Wind 3 mph5 km/hWNWTrack temperature 55°13°DrizzleTemperature 50°10°Rain chance 72%Wind 3 mph5 km/hNNETrack temperature 58°14°Light drizzleTemperature 52°11°Rain chance 62%Wind 3 mph5 km/hSETrack temperature 62°17°Light drizzleTemperature 54°12°Rain chance 58%Wind 9 mph15 km/hSSWTrack temperature 66°19°Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude5,477ft1,669mField elevation 4,409 ft
Air density1.040kg/m³84.9% of standard (RAD)
Water grains47grgrains per lb of dry air
Track temp (est.)75°F24°CAsphalt in 523 W/m² sun
Dew point42°F6°C50% humidity
Barometer30.03inHg1017hPaSteady 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 3161°16° 44°7° 44%Yellow flag
- TomorrowNov 1
54°12° 47°8° 90%Red flag - MonNov 250°10° 44°7° 81%Green flag
- TueNov 359°15° 43°6° 3%Green flag
- WedNov 450°10° 40°4° 36%Green flag
- ThuNov 552°11° 41°5° 9%Green flag
- FriNov 655°13° 41°5° 16%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Yellow flaggusty wind | Light drizzle | 61°16° 44°7° | 44% 0.02 in0.4 mm | 27 mph44 km/h S | 76°24° | 5,477 ft1,669 m | 7:57 AM · 6:28 PM |
| Tomorrow Nov 1 | Red flagrain | Rain | 54°12° 47°8° | 90% 0.64 in16.2 mm | 16 mph25 km/h N | 66°19° | 5,490 ft1,673 m | 6:58 AM · 5:27 PM |
| Mon Nov 2 | Green flag | Overcast | 50°10° 44°7° | 81% 0.11 in2.9 mm | 28 mph44 km/h NW | 68°20° | 4,642 ft1,415 m | 6:59 AM · 5:26 PM |
| Tue Nov 3 | Green flag | Overcast | 59°15° 43°6° | 3% | 13 mph21 km/h SSE | 88°31° | 5,427 ft1,654 m | 7:00 AM · 5:25 PM |
| Wed Nov 4 | Green flag | Overcast | 50°10° 40°4° | 36% 0.86 in21.8 mm | 9 mph15 km/h WSW | 67°20° | 4,726 ft1,440 m | 7:02 AM · 5:24 PM |
| Thu Nov 5 | Green flag | Overcast | 52°11° 41°5° | 9% | 4 mph7 km/h SE | 78°26° | 4,815 ft1,468 m | 7:03 AM · 5:23 PM |
| Fri Nov 6 | Green flag | Overcast | 55°13° 41°5° | 16% | 7 mph12 km/h S | 79°26° | 4,938 ft1,505 m | 7:04 AM · 5:22 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 9 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 61°16° | 42°6° | 50% | 30.03 inHg1017 hPa | 5,477 ft1,669 m | 1.040 | 47 | 75°24° | 18 mph30 km/h S | 7% | |
| 60°16° | 41°5° | 49% | 30.00 inHg1016 hPa | 5,451 ft1,661 m | 1.041 | 44 | 67°20° | 17 mph27 km/h S · gusts 23 mph37 km/h | 4% | |
| 60°16° | 40°5° | 48% | 29.98 inHg1015 hPa | 5,456 ft1,663 m | 1.041 | 43 | 66°19° | 12 mph20 km/h S · gusts 20 mph33 km/h | 3% | |
| 57°14° | 41°5° | 54% | 29.94 inHg1014 hPa | 5,354 ft1,632 m | 1.044 | 44 | 59°15° | 6 mph10 km/h S · gusts 15 mph25 km/h | 2% | |
| 55°13° | 39°4° | 56% | 29.96 inHg1015 hPa | 5,174 ft1,577 m | 1.050 | 41 | 55°13° | 6 mph10 km/h S | 2% | |
| 53°12° | 39°4° | 59% | 29.99 inHg1016 hPa | 5,045 ft1,538 m | 1.054 | 40 | 53°12° | 8 mph13 km/h SSE · gusts 17 mph27 km/h | 3% | |
| 53°11° | 41°5° | 64% | 29.98 inHg1015 hPa | 5,062 ft1,543 m | 1.054 | 44 | 53°11° | 7 mph12 km/h SSW | 7% | |
| 52°11° | 42°6° | 70% | 29.97 inHg1015 hPa | 5,036 ft1,535 m | 1.054 | 47 | 52°11° | 11 mph18 km/h SSW · gusts 18 mph30 km/h | 24% | |
| 51°11° | 45°7° | 79% | 29.93 inHg1014 hPa | 5,052 ft1,540 m | 1.054 | 52 | 51°11° | 6 mph10 km/h S | 44% |
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 Utah
Pit box, all week
Every forecast hour for the next seven days at Utah: 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 Utah, and a heads-up three days out.
What Pro includes Also event history, a calendar feed and no ads.
The track
Facts
- Location
- Grantsville, Utah
- Layout
- 4.486-mile full course; East and West courses
- Length
- 4.486 mi (7.22 km)
- Surface
- Asphalt
- Opened
- 2006
- Series
- Club racing
- Signature events
- Pirelli GT4 and club racing
- Time zone
- America/Denver
- Elevation
- 4,409 ft (1,344 m)