Crosswind down the strip: 2 mph3 km/h
Layout © OpenStreetMap contributors · north up
69°21°OvercastFeels like 68°20° · Dew point 53°12°
- Track temp
- 86°F30°C
- Rain chance
- 2%
- Wind
- 4mph6km/hSSE
- Density alt.
- 2,145ft654m
- Barometer 29.85 inHg1011 hPa falling
- Humidity 56%
- Cloud 100%
- UV 3
Forecast updated · Open-Meteo
Next 24 hours
The week Hour by hour
NowOvercastTemperature 69°21°Rain chance 2%Wind 4 mph6 km/hSSETrack temperature 86°30°
OvercastTemperature 69°21°Rain chance 2%Wind 4 mph6 km/hSSETrack temperature 86°30°OvercastTemperature 71°21°Rain chance 2%Wind 3 mph5 km/hSSETrack temperature 89°32°OvercastTemperature 71°21°Rain chance 4%Wind 3 mph5 km/hSSWTrack temperature 82°28°OvercastTemperature 70°21°Rain chance 9%Wind 5 mph7 km/hWSWTrack temperature 73°23°
OvercastTemperature 67°20°Rain chance 21%Wind 5 mph7 km/hSWTrack temperature 67°20°
Light drizzleTemperature 64°18°Rain chance 28%Wind 7 mph12 km/hSWTrack temperature 64°18°Heavy drizzleTemperature 62°17°Rain chance 55%Wind 5 mph8 km/hWSWTrack temperature 62°17°Heavy drizzleTemperature 61°16°Rain chance 50%Wind 3 mph5 km/hWNWTrack temperature 61°16°Light drizzleTemperature 61°16°Rain chance 43%Wind 2 mph3 km/hWTrack temperature 61°16°OvercastTemperature 61°16°Rain chance 45%Wind 2 mph4 km/hNNWTrack temperature 61°16°OvercastTemperature 60°15°Rain chance 51%Wind 6 mph9 km/hNETrack temperature 60°15°Light drizzleTemperature 60°15°Rain chance 62%Wind 3 mph5 km/hNETrack temperature 60°15°DrizzleTemperature 59°15°Rain chance 70%Wind 2 mph3 km/hENETrack temperature 59°15°DrizzleTemperature 58°15°Rain chance 78%Wind 3 mph5 km/hWSWTrack temperature 58°15°DrizzleTemperature 58°14°Rain chance 64%Wind 1 mph2 km/hWSWTrack temperature 58°14°OvercastTemperature 58°15°Rain chance 47%Wind 2 mph3 km/hNETrack temperature 58°15°OvercastTemperature 58°15°Rain chance 30%Wind 3 mph5 km/hWTrack temperature 58°15°OvercastTemperature 58°15°Rain chance 26%Wind 2 mph4 km/hSETrack temperature 58°15°OvercastTemperature 59°15°Rain chance 25%Wind 4 mph6 km/hSWTrack temperature 59°15°OvercastTemperature 60°15°Rain chance 20%Wind 4 mph6 km/hWSWTrack temperature 63°17°OvercastTemperature 60°16°Rain chance 13%Wind 8 mph12 km/hWTrack temperature 64°18°OvercastTemperature 61°16°Rain chance 15%Wind 9 mph14 km/hWTrack temperature 71°21°
Mostly clearTemperature 62°17°Rain chance 6%Wind 10 mph16 km/hWSWTrack temperature 80°27°ClearTemperature 63°17°Rain chance 3%Wind 10 mph17 km/hWSWTrack temperature 79°26°Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude2,145ft654mField elevation 1,007 ft
Air density1.150kg/m³93.9% of standard (RAD)
Water grains62grgrains per lb of dry air
Track temp (est.)86°F30°CAsphalt/concrete in 400 W/m² sun
Dew point53°F12°C56% humidity
Barometer29.85inHg1011hPaFalling 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 3171°21° 56°14° 55%Red flag
- TomorrowNov 164°18° 51°10° 78%Yellow flag
- MonNov 272°22° 48°9° 0%Green flag
- TueNov 374°23° 62°16° 0%Green flag
- WedNov 476°24° 61°16° 1%Green flag
- ThuNov 578°25° 64°18° 1%Green flag
- FriNov 681°27° 65°18° 1%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Red flagrain | Heavy drizzle | 71°21° 56°14° | 55% 0.12 in3 mm | 14 mph22 km/h SE | 90°32° | 2,214 ft675 m | 7:08 AM · 6:00 PM |
| Tomorrow Nov 1 | Yellow flaggusty wind | Overcast | 64°18° 51°10° | 78% 0.1 in2.5 mm | 25 mph40 km/h WSW | 82°28° | 1,799 ft548 m | 6:09 AM · 4:59 PM |
| Mon Nov 2 | Green flag | Overcast | 72°22° 48°9° | 0% | 11 mph17 km/h S | 98°36° | 1,967 ft600 m | 6:10 AM · 4:58 PM |
| Tue Nov 3 | Green flag | Overcast | 74°23° 62°16° | 0% | 8 mph13 km/h WSW | 98°37° | 2,190 ft668 m | 6:11 AM · 4:57 PM |
| Wed Nov 4 | Green flag | Overcast | 76°24° 61°16° | 1% | 7 mph12 km/h SW | 101°38° | 2,480 ft756 m | 6:12 AM · 4:56 PM |
| Thu Nov 5 | Green flag | Overcast | 78°25° 64°18° | 1% | 6 mph10 km/h WSW | 102°39° | 2,515 ft767 m | 6:13 AM · 4:55 PM |
| Fri Nov 6 | Green flag | Clear | 81°27° 65°18° | 1% | 6 mph9 km/h SSW | 107°42° | 2,656 ft810 m | 6:14 AM · 4:55 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 10 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°21° | 53°12° | 56% | 29.85 inHg1011 hPa | 2,145 ft654 m | 1.150 | 62 | 86°30° | 4 mph6 km/h SSE | 2% | |
| 71°21° | 53°11° | 53% | 29.85 inHg1011 hPa | 2,206 ft672 m | 1.148 | 61 | 89°32° | 3 mph5 km/h SSE | 2% | |
| 71°21° | 51°11° | 50% | 29.84 inHg1010 hPa | 2,214 ft675 m | 1.148 | 57 | 82°28° | 3 mph5 km/h SSW | 4% | |
| 70°21° | 50°10° | 50% | 29.83 inHg1010 hPa | 2,174 ft663 m | 1.149 | 56 | 73°23° | 5 mph7 km/h WSW | 9% | |
| 67°20° | 48°9° | 50% | 29.87 inHg1012 hPa | 1,950 ft594 m | 1.157 | 51 | 67°20° | 5 mph7 km/h SW | 21% | |
| 64°18° | 56°13° | 73% | 29.89 inHg1012 hPa | 1,805 ft550 m | 1.162 | 68 | 64°18° | 7 mph12 km/h SW | 28% | |
| 62°17° | 59°15° | 91% | 29.91 inHg1013 hPa | 1,649 ft503 m | 1.167 | 77 | 62°17° | 5 mph8 km/h WSW | 55% | |
| 61°16° | 60°16° | 96% | 29.91 inHg1013 hPa | 1,610 ft491 m | 1.168 | 80 | 61°16° | 3 mph5 km/h WNW | 50% | |
| 61°16° | 59°15° | 93% | 29.88 inHg1012 hPa | 1,631 ft497 m | 1.168 | 77 | 61°16° | 2 mph3 km/h W | 43% | |
| 61°16° | 58°14° | 89% | 29.87 inHg1012 hPa | 1,631 ft497 m | 1.168 | 74 | 61°16° | 2 mph4 km/h NNW | 45% |
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 Pomona
Pit box, all week
Every forecast hour for the next seven days at Pomona: 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 Pomona, and a heads-up three days out.
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The track
Facts
- Location
- Pomona, California
- Layout
- Quarter-mile drag strip at the Fairplex
- Length
- Quarter mile (1,320 ft)
- Surface
- Asphalt/concrete
- Opened
- 1951
- Series
- NHRA
- Signature events
- NHRA Winternationals, NHRA Finals
- Time zone
- America/Los Angeles
- Elevation
- 1,007 ft (307 m)