58°15°OvercastFeels like 56°14° · Dew point 44°7°
- Track temp
- 71°F22°C
- Rain chance
- 2%
- Wind
- 1mph2km/hSW
- Density alt.
- 3,280ft1,000m
- Barometer 29.94 inHg1014 hPa steady
- Humidity 58%
Forecast updated · Open-Meteo
Next 24 hours
The week Hour by hour
NowOvercastTemperature 58°15°Rain chance 2%Wind 1 mph2 km/hSWTrack temperature 71°22°
OvercastTemperature 58°15°Rain chance 2%Wind 1 mph2 km/hSWTrack temperature 71°22°OvercastTemperature 61°16°Rain chance 4%Wind 6 mph10 km/hSSETrack temperature 74°23°OvercastTemperature 61°16°Rain chance 6%Wind 6 mph10 km/hSSETrack temperature 69°20°OvercastTemperature 58°15°Rain chance 11%Wind 3 mph5 km/hSETrack temperature 62°17°
OvercastTemperature 55°13°Rain chance 21%Wind 1 mph2 km/hSSWTrack temperature 55°13°OvercastTemperature 52°11°Rain chance 34%Wind 5 mph8 km/hSTrack temperature 52°11°OvercastTemperature 50°10°Rain chance 41%Wind 4 mph7 km/hSSETrack temperature 50°10°OvercastTemperature 49°10°Rain chance 44%Wind 4 mph6 km/hSSWTrack temperature 49°10°
Partly cloudyTemperature 46°8°Rain chance 32%Wind 4 mph7 km/hSWTrack temperature 46°8°OvercastTemperature 45°7°Rain chance 21%Wind 1 mph2 km/hNNETrack temperature 45°7°OvercastTemperature 47°8°Rain chance 18%Wind 1 mph1 km/hWSWTrack temperature 47°8°OvercastTemperature 46°8°Rain chance 28%Wind 0 mph0 km/hWSWTrack temperature 46°8°
RainTemperature 46°8°Rain chance 37%Wind 7 mph10 km/hWSWTrack temperature 46°8°RainTemperature 46°8°Rain chance 39%Wind 4 mph7 km/hWNWTrack temperature 46°8°
Light rainTemperature 46°8°Rain chance 26%Wind 4 mph6 km/hWNWTrack temperature 46°8°OvercastTemperature 46°8°Rain chance 28%Wind 4 mph7 km/hWNWTrack temperature 46°8°
Light drizzleTemperature 45°7°Rain chance 27%Wind 5 mph8 km/hWNWTrack temperature 45°7°Light drizzleTemperature 45°7°Rain chance 25%Wind 4 mph6 km/hWNWTrack temperature 45°7°Light drizzleTemperature 45°7°Rain chance 29%Wind 7 mph11 km/hWNWTrack temperature 45°7°Light drizzleTemperature 46°8°Rain chance 25%Wind 7 mph11 km/hNWTrack temperature 49°9°OvercastTemperature 48°9°Rain chance 21%Wind 8 mph13 km/hNWTrack temperature 54°12°OvercastTemperature 50°10°Rain chance 19%Wind 9 mph15 km/hNWTrack temperature 55°13°OvercastTemperature 51°11°Rain chance 12%Wind 10 mph16 km/hWNWTrack temperature 60°15°OvercastTemperature 52°11°Rain chance 5%Wind 10 mph16 km/hNWTrack temperature 61°16°Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude3,280ft1,000mField elevation 2,621 ft
Air density1.112kg/m³90.7% of standard (RAD)
Water grains46grgrains per lb of dry air
Track temp (est.)71°F22°CAsphalt in 247 W/m² sun
Dew point44°F7°C58% humidity
Barometer29.94inHg1014hPaSteady 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° 40°5° 44%Green flag
- TomorrowNov 154°12° 43°6° 39%Yellow flag
- MonNov 256°14° 38°3° 0%Green flag
- TueNov 363°17° 44°7° 1%Yellow flag
- WedNov 457°14° 41°5° 2%Green flag
- ThuNov 5
59°15° 42°6° 13%Green flag - FriNov 660°15° 47°9° 21%Green flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | Overcast | 61°16° 40°5° | 44% | 12 mph19 km/h S | 75°24° | 3,423 ft1,043 m | 8:18 AM · 6:39 PM |
| Tomorrow Nov 1 | Yellow flaggusty wind | Light drizzle | 54°12° 43°6° | 39% 0.5 in12.7 mm | 29 mph47 km/h WNW | 65°18° | 3,088 ft941 m | 7:20 AM · 5:38 PM |
| Mon Nov 2 | Green flag | Overcast | 56°14° 38°3° | 0% | 23 mph38 km/h NW | 76°25° | 2,827 ft862 m | 7:21 AM · 5:36 PM |
| Tue Nov 3 | Yellow flaggusty wind | Overcast | 63°17° 44°7° | 1% | 30 mph48 km/h S | 78°26° | 3,517 ft1,072 m | 7:22 AM · 5:35 PM |
| Wed Nov 4 | Green flag | Overcast | 57°14° 41°5° | 2% | 15 mph24 km/h NW | 74°23° | 3,016 ft919 m | 7:24 AM · 5:34 PM |
| Thu Nov 5 | Green flag | Partly cloudy | 59°15° 42°6° | 13% | 9 mph15 km/h SE | 83°28° | 3,066 ft935 m | 7:25 AM · 5:33 PM |
| Fri Nov 6 | Green flag | Drizzle | 60°15° 47°9° | 21% 0.06 in1.5 mm | 21 mph33 km/h E | 78°26° | 3,140 ft957 m | 7:26 AM · 5:31 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 58°15° | 44°7° | 58% | 29.94 inHg1014 hPa | 3,280 ft1,000 m | 1.112 | 46 | 71°22° | 1 mph2 km/h SW | 2% | |
| 61°16° | 42°6° | 51% | 29.94 inHg1014 hPa | 3,402 ft1,037 m | 1.108 | 44 | 74°23° | 6 mph10 km/h SSE | 4% | |
| 61°16° | 41°5° | 48% | 29.91 inHg1013 hPa | 3,423 ft1,043 m | 1.107 | 41 | 69°20° | 6 mph10 km/h SSE | 6% | |
| 58°15° | 41°5° | 52% | 29.88 inHg1012 hPa | 3,332 ft1,016 m | 1.110 | 41 | 62°17° | 3 mph5 km/h SE | 11% | |
| 55°13° | 38°3° | 54% | 29.90 inHg1012 hPa | 3,074 ft937 m | 1.119 | 37 | 55°13° | 1 mph2 km/h SSW | 21% | |
| 52°11° | 39°4° | 61% | 29.90 inHg1012 hPa | 2,915 ft888 m | 1.124 | 38 | 52°11° | 5 mph8 km/h S | 34% | |
| 50°10° | 41°5° | 69% | 29.90 inHg1012 hPa | 2,840 ft866 m | 1.126 | 41 | 50°10° | 4 mph7 km/h SSE | 41% | |
| 49°10° | 41°5° | 72% | 29.87 inHg1012 hPa | 2,815 ft858 m | 1.127 | 41 | 49°10° | 4 mph6 km/h SSW | 44% | |
| 46°8° | 39°4° | 77% | 29.86 inHg1011 hPa | 2,614 ft797 m | 1.134 | 39 | 46°8° | 4 mph7 km/h SW | 32% |
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 Meridian
Pit box, all week
Every forecast hour for the next seven days at Meridian: 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 Meridian, and a heads-up three days out.
What Pro includes Also event history, a calendar feed and no ads.
The track
Facts
- Location
- Meridian, Idaho
- Layout
- 1/4-mile paved oval
- Length
- 0.25 mi (0.40 km)
- Surface
- Asphalt
- Opened
- 1951
- Series
- Late Models, Modifieds, NASCAR Weekly Series divisions
- Time zone
- America/Boise
- Elevation
- 2,621 ft (799 m)
