- Track temp
- 56°F14°C
- Rain chance
- 2%
- Wind
- 9mph14km/hESE · gusts 18 mph29 km/h
- Density alt.
- 808ft246m
- Barometer 30.34 inHg1027 hPa steady
- Humidity 51%
- Cloud 100%
- UV 0
Forecast updated · Open-Meteo
Hour by hour
OvercastTemperature 56°14°Rain chance 2%Wind 9 mph14 km/hESETrack temperature 56°14°OvercastTemperature 56°13°Rain chance 2%Wind 10 mph16 km/hESETrack temperature 56°13°OvercastTemperature 55°13°Rain chance 2%Wind 10 mph16 km/hSETrack temperature 55°13°OvercastTemperature 55°13°Rain chance 2%Wind 10 mph17 km/hSETrack temperature 55°13°OvercastTemperature 55°13°Rain chance 2%Wind 10 mph16 km/hSETrack temperature 55°13°OvercastTemperature 54°12°Rain chance 4%Wind 7 mph11 km/hSETrack temperature 54°12°OvercastTemperature 53°11°Rain chance 4%Wind 7 mph11 km/hSETrack temperature 53°11°OvercastTemperature 52°11°Rain chance 6%Wind 6 mph10 km/hSETrack temperature 52°11°OvercastTemperature 51°11°Rain chance 7%Wind 5 mph8 km/hESETrack temperature 51°11°OvercastTemperature 51°10°Rain chance 7%Wind 6 mph9 km/hSETrack temperature 51°10°OvercastTemperature 51°10°Rain chance 9%Wind 8 mph12 km/hSSETrack temperature 51°10°OvercastTemperature 50°10°Rain chance 15%Wind 6 mph10 km/hSSETrack temperature 50°10°
OvercastTemperature 51°11°Rain chance 13%Wind 5 mph8 km/hSSETrack temperature 52°11°OvercastTemperature 56°13°Rain chance 10%Wind 4 mph7 km/hSSETrack temperature 63°17°OvercastTemperature 60°16°Rain chance 11%Wind 4 mph6 km/hSSETrack temperature 70°21°OvercastTemperature 63°17°Rain chance 10%Wind 3 mph4 km/hESETrack temperature 71°21°OvercastTemperature 64°18°Rain chance 9%Wind 4 mph6 km/hSETrack temperature 75°24°OvercastTemperature 68°20°Rain chance 7%Wind 3 mph5 km/hSWTrack temperature 82°28°OvercastTemperature 69°21°Rain chance 5%Wind 3 mph5 km/hSWTrack temperature 78°26°OvercastTemperature 68°20°Rain chance 5%Wind 2 mph4 km/hSWTrack temperature 77°25°OvercastTemperature 67°20°Rain chance 6%Wind 3 mph5 km/hETrack temperature 70°21°OvercastTemperature 65°19°Rain chance 9%Wind 6 mph9 km/hETrack temperature 67°19°OvercastTemperature 63°17°Rain chance 12%Wind 8 mph13 km/hETrack temperature 63°17°OvercastTemperature 62°17°Rain chance 12%Wind 7 mph12 km/hETrack temperature 62°17°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 3164°18° 51°11° 9%Green flag
- TomorrowNov 169°21° 50°10° 15%Green flag
- MonNov 257°14° 55°13° 15%Yellow flag
- TueNov 374°23° 55°13° 20%Yellow flag
- WedNov 4
65°18° 60°15° 72%Red flag - ThuNov 5
64°18° 58°14° 29%Red flag - FriNov 659°15° 48°9° 26%Green flag
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | Overcast | 64°18° 51°11° | 9% | 23 mph36 km/h ESE | 81°27° | 1,255 ft383 m | 8:07 AM · 6:40 PM |
| Tomorrow Nov 1 | Green flag | Overcast | 69°21° 50°10° | 15% | 18 mph29 km/h SE | 82°28° | 1,582 ft482 m | 7:08 AM · 5:39 PM |
| Mon Nov 2 | Yellow flaggusty wind | Overcast | 57°14° 55°13° | 15% | 34 mph55 km/h S | 63°17° | 1,083 ft330 m | 7:09 AM · 5:37 PM |
| Tue Nov 3 | Yellow flaggusty wind | Overcast | 74°23° 55°13° | 20% | 39 mph62 km/h S | 87°30° | 2,417 ft737 m | 7:10 AM · 5:36 PM |
| Wed Nov 4 | Red flagrain, gusty wind | Heavy drizzle | 65°18° 60°15° | 72% 0.57 in14.4 mm | 36 mph58 km/h S | 65°18° | 1,848 ft563 m | 7:11 AM · 5:35 PM |
| Thu Nov 5 | Red flagrain | Showers | 64°18° 58°14° | 29% 0.63 in16 mm | 16 mph25 km/h S | 67°19° | 1,939 ft591 m | 7:13 AM · 5:34 PM |
| Fri Nov 6 | Green flag | Light drizzle | 59°15° 48°9° | 26% 0.23 in5.9 mm | 13 mph21 km/h SW | 55°13° | 1,240 ft378 m | 7:14 AM · 5:33 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 3 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 56°14° | 39°4° | 51% | 30.34 inHg1027 hPa | 808 ft246 m | 1.196 | 35 | 56°14° | 9 mph14 km/h ESE · gusts 18 mph29 km/h | 2% | |
| 56°13° | 38°4° | 52% | 30.36 inHg1028 hPa | 735 ft224 m | 1.199 | 35 | 56°13° | 10 mph16 km/h ESE · gusts 19 mph30 km/h | 2% | |
| 55°13° | 38°3° | 52% | 30.39 inHg1029 hPa | 682 ft208 m | 1.201 | 34 | 55°13° | 10 mph16 km/h SE · gusts 18 mph28 km/h | 2% |
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 Winchester
Pit box, all week
Every forecast hour for the next seven days at Winchester: 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 Winchester, and a heads-up three days out.
A year at Winchester
Typical for October here: highs around 66°19°, lows 48°9°, rain on 30% of days.
5-year averages from the Open-Meteo archive at the track's coordinates.
Getting to Winchester
2656 W State Road 32, Winchester, IN 47394
Camping On site
On-site campground sold out for the 2025 Winchester 400, with a waiting list; a second campground 5.5 miles away had an hourly shuttle to the track. Ask the track about current availability. racingamerica.com
From the track’s own pages, checked October 2026. Prices and rules change by event, so confirm before you go.
Facts
- Location
- Winchester, Indiana
- Layout
- Half-mile high-banked oval, World's Fastest Half Mile
- Length
- 0.5 mi (0.80 km)
- Surface
- Asphalt
- Banking
- 37°
- Opened
- 1914
- Series
- ARCA, Super Late Models
- Signature events
- Winchester 400
- Time zone
- America/Indiana/Indianapolis
- Elevation
- 1,083 ft (330 m)