- Track temp
- 68°F20°C
- Rain chance
- 4%
- Wind
- 7mph11km/hS
- Density alt.
- 682ft208m
- Barometer 29.85 inHg1011 hPa falling
- Humidity 44%
Forecast updated · Open-Meteo
Hour by hour
OvercastTemperature 64°18°Rain chance 4%Wind 7 mph11 km/hSTrack temperature 68°20°OvercastTemperature 63°17°Rain chance 3%Wind 6 mph9 km/hSWTrack temperature 70°21°OvercastTemperature 61°16°Rain chance 3%Wind 2 mph4 km/hSWTrack temperature 61°16°
OvercastTemperature 60°15°Rain chance 2%Wind 1 mph2 km/hESETrack temperature 60°15°OvercastTemperature 59°15°Rain chance 2%Wind 3 mph6 km/hENETrack temperature 59°15°
ClearTemperature 56°13°Rain chance 2%Wind 4 mph7 km/hESETrack temperature 56°13°ClearTemperature 54°12°Rain chance 1%Wind 3 mph4 km/hSTrack temperature 54°12°OvercastTemperature 53°12°Rain chance 1%Wind 6 mph10 km/hSSETrack temperature 53°12°OvercastTemperature 55°13°Rain chance 1%Wind 3 mph4 km/hSTrack temperature 55°13°Mostly clearTemperature 53°12°Rain chance 1%Wind 4 mph7 km/hSSETrack temperature 53°12°ClearTemperature 50°10°Rain chance 1%Wind 5 mph8 km/hSTrack temperature 50°10°ClearTemperature 49°9°Rain chance 1%Wind 5 mph8 km/hSSETrack temperature 49°9°ClearTemperature 47°8°Rain chance 1%Wind 5 mph7 km/hSETrack temperature 47°8°OvercastTemperature 47°8°Rain chance 1%Wind 4 mph6 km/hSTrack temperature 47°8°Mostly clearTemperature 46°8°Rain chance 2%Wind 5 mph8 km/hSETrack temperature 46°8°ClearTemperature 44°7°Rain chance 2%Wind 4 mph7 km/hSSETrack temperature 44°7°
ClearTemperature 44°7°Rain chance 2%Wind 3 mph5 km/hSSWTrack temperature 44°7°ClearTemperature 50°10°Rain chance 2%Wind 0 mph1 km/hWSWTrack temperature 57°14°ClearTemperature 55°13°Rain chance 1%Wind 3 mph5 km/hNTrack temperature 69°20°ClearTemperature 58°14°Rain chance 1%Wind 5 mph8 km/hNNWTrack temperature 78°25°ClearTemperature 61°16°Rain chance 1%Wind 5 mph8 km/hNNWTrack temperature 85°30°ClearTemperature 64°18°Rain chance 1%Wind 8 mph12 km/hNWTrack temperature 88°31°ClearTemperature 67°19°Rain chance 1%Wind 8 mph12 km/hNWTrack temperature 89°32°ClearTemperature 68°20°Rain chance 0%Wind 8 mph13 km/hNWTrack temperature 88°31°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 3167°19° 53°12° 4%Green flag
- TomorrowNov 169°21° 44°7° 2%Green flag
- MonNov 265°19° 44°6° 0%Green flag
- TueNov 3
58°14° 54°12° 28%Red flag - WedNov 466°19° 47°8° 11%Green flag
- ThuNov 571°22° 54°12° 3%Green flag
- FriNov 671°22° 54°12° 4%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | Overcast | 67°19° 53°12° | 4% | 15 mph24 km/h SSE | 87°30° | 890 ft271 m | 7:30 AM · 6:07 PM |
| Tomorrow Nov 1 | Green flag | Clear | 69°21° 44°7° | 2% | 12 mph19 km/h SW | 89°32° | 950 ft290 m | 6:31 AM · 5:06 PM |
| Mon Nov 2 | Green flag | Overcast | 65°19° 44°6° | 0% | 13 mph21 km/h SE | 89°32° | 455 ft139 m | 6:32 AM · 5:05 PM |
| Tue Nov 3 | Red flagrain | Heavy drizzle | 58°14° 54°12° | 28% 0.07 in1.7 mm | 13 mph20 km/h E | 63°17° | 19 ft6 m | 6:33 AM · 5:04 PM |
| Wed Nov 4 | Green flag | Overcast | 66°19° 47°8° | 11% | 16 mph26 km/h NNW | 87°31° | 680 ft207 m | 6:34 AM · 5:03 PM |
| Thu Nov 5 | Green flag | Overcast | 71°22° 54°12° | 3% | 4 mph6 km/h NNE | 95°35° | 1,006 ft307 m | 6:35 AM · 5:02 PM |
| Fri Nov 6 | Green flag | Overcast | 71°22° 54°12° | 4% | 7 mph11 km/h N | 93°34° | 951 ft290 m | 6:36 AM · 5:01 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 8 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 64°18° | 41°5° | 44% | 29.85 inHg1011 hPa | 682 ft208 m | 1.201 | 38 | 68°20° | 7 mph11 km/h S | 4% | |
| 63°17° | 41°5° | 44% | 29.86 inHg1011 hPa | 645 ft197 m | 1.202 | 38 | 70°21° | 6 mph9 km/h SW | 3% | |
| 61°16° | 42°5° | 49% | 29.86 inHg1011 hPa | 494 ft151 m | 1.207 | 39 | 61°16° | 2 mph4 km/h SW · gusts 9 mph15 km/h | 3% | |
| 60°15° | 41°5° | 50% | 29.87 inHg1012 hPa | 418 ft127 m | 1.210 | 38 | 60°15° | 1 mph2 km/h ESE · gusts 9 mph15 km/h | 2% | |
| 59°15° | 39°4° | 48% | 29.87 inHg1011 hPa | 354 ft108 m | 1.212 | 36 | 59°15° | 3 mph6 km/h ENE | 2% | |
| 56°13° | 37°3° | 49% | 29.85 inHg1011 hPa | 192 ft59 m | 1.218 | 33 | 56°13° | 4 mph7 km/h ESE | 2% | |
| 54°12° | 37°3° | 51% | 29.82 inHg1010 hPa | 89 ft27 m | 1.222 | 32 | 54°12° | 3 mph4 km/h S | 1% | |
| 53°12° | 38°3° | 56% | 29.82 inHg1010 hPa | 25 ft8 m | 1.224 | 34 | 53°12° | 6 mph10 km/h SSE | 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 Roseville
Pit box, all week
Every forecast hour for the next seven days at Roseville: 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 Roseville, and a heads-up three days out.
Getting to Roseville
Roseville, California
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
- Roseville, California
- Layout
- 1/3-mile paved oval
- Length
- 0.333 mi (0.54 km)
- Surface
- Asphalt
- Banking
- 8°–14°
- Opened
- 1955
- Series
- Late Models, NASCAR Modifieds, Street Stocks, Mini Stocks, ARCA Menards Series West
- Signature events
- NAPA Auto Parts 150
- Time zone
- America/Los Angeles
- Elevation
- 161 ft (49 m)