- Track temp
- 44°F7°C
- Rain chance
- 0%
- Wind
- 3mph6km/hNNW
- Density alt.
- -698ft-213m
- Barometer 30.39 inHg1029 hPa steady
- Humidity 50%
- Cloud 0%
- UV 0
Forecast updated · Open-Meteo
Hour by hour
ClearTemperature 44°7°Rain chance 0%Wind 3 mph6 km/hNNWTrack temperature 44°7°ClearTemperature 42°6°Rain chance 0%Wind 5 mph7 km/hNNWTrack temperature 42°6°ClearTemperature 42°5°Rain chance 0%Wind 4 mph7 km/hNWTrack temperature 42°5°ClearTemperature 40°4°Rain chance 0%Wind 1 mph1 km/hWNWTrack temperature 40°4°ClearTemperature 39°4°Rain chance 0%Wind 2 mph3 km/hSSWTrack temperature 39°4°ClearTemperature 38°4°Rain chance 0%Wind 1 mph2 km/hSETrack temperature 38°4°ClearTemperature 38°3°Rain chance 0%Wind 2 mph3 km/hSETrack temperature 38°3°ClearTemperature 37°3°Rain chance 0%Wind 2 mph3 km/hSWTrack temperature 37°3°Mostly clearTemperature 36°2°Rain chance 0%Wind 4 mph6 km/hSWTrack temperature 36°2°ClearTemperature 35°2°Rain chance 0%Wind 4 mph6 km/hSWTrack temperature 35°2°ClearTemperature 35°2°Rain chance 0%Wind 2 mph3 km/hSTrack temperature 35°2°ClearTemperature 35°1°Rain chance 0%Wind 2 mph3 km/hSTrack temperature 35°1°ClearTemperature 33°1°Rain chance 0%Wind 2 mph3 km/hSTrack temperature 33°1°
ClearTemperature 33°1°Rain chance 0%Wind 2 mph3 km/hSSWTrack temperature 34°1°ClearTemperature 39°4°Rain chance 0%Wind 2 mph3 km/hSSWTrack temperature 47°8°ClearTemperature 46°8°Rain chance 0%Wind 4 mph7 km/hWTrack temperature 60°15°ClearTemperature 49°10°Rain chance 0%Wind 5 mph8 km/hWNWTrack temperature 69°20°ClearTemperature 53°12°Rain chance 0%Wind 4 mph6 km/hNWTrack temperature 77°25°ClearTemperature 56°13°Rain chance 0%Wind 4 mph7 km/hNWTrack temperature 81°27°ClearTemperature 58°14°Rain chance 0%Wind 6 mph9 km/hNWTrack temperature 80°27°ClearTemperature 58°15°Rain chance 0%Wind 6 mph9 km/hWNWTrack temperature 77°25°ClearTemperature 58°14°Rain chance 0%Wind 6 mph9 km/hWNWTrack temperature 70°21°ClearTemperature 56°13°Rain chance 0%Wind 4 mph7 km/hWTrack temperature 62°17°ClearTemperature 51°10°Rain chance 0%Wind 5 mph8 km/hSSWTrack temperature 51°10°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 3154°12° 37°3° 0%Green flag
- TomorrowNov 158°15° 33°1° 1%Green flag
- MonNov 2
63°17° 44°6° 2%Green flag - TueNov 364°18° 46°8° 1%Green flag
- WedNov 468°20° 49°10° 1%Yellow flag
- ThuNov 5
68°20° 51°11° 38%Green flag - FriNov 6
61°16° 59°15° 46%Red flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | Clear | 54°12° 37°3° | 0% | 32 mph51 km/h NW | 75°24° | -49 ft-15 m | 7:23 AM · 5:50 PM |
| Tomorrow Nov 1 | Green flag | Clear | 58°15° 33°1° | 1% | 10 mph17 km/h SW | 81°27° | 126 ft38 m | 6:24 AM · 4:49 PM |
| Mon Nov 2 | Green flag | Overcast | 63°17° 44°6° | 2% | 15 mph24 km/h SSW | 80°27° | 574 ft175 m | 6:26 AM · 4:48 PM |
| Tue Nov 3 | Green flag | Overcast | 64°18° 46°8° | 1% | 11 mph18 km/h SW | 81°27° | 764 ft233 m | 6:27 AM · 4:46 PM |
| Wed Nov 4 | Yellow flaggusty wind | Overcast | 68°20° 49°10° | 1% | 28 mph46 km/h SSW | 86°30° | 1,197 ft365 m | 6:28 AM · 4:45 PM |
| Thu Nov 5 | Green flag | Fog | 68°20° 51°11° | 38% <0.01 in0.1 mm | 27 mph43 km/h SSW | 86°30° | 1,420 ft433 m | 6:29 AM · 4:44 PM |
| Fri Nov 6 | Red flagrain | Heavy drizzle | 61°16° 59°15° | 46% 0.28 in7.1 mm | 20 mph32 km/h SSE | 62°17° | 1,099 ft335 m | 6:31 AM · 4:43 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 5 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 44°7° | 27°-3° | 50% | 30.39 inHg1029 hPa | -698 ft-213 m | 1.250 | 22 | 44°7° | 3 mph6 km/h NNW | 0% | |
| 42°6° | 26°-3° | 52% | 30.41 inHg1030 hPa | -859 ft-262 m | 1.256 | 21 | 42°6° | 5 mph7 km/h NNW | 0% | |
| 42°5° | 25°-4° | 51% | 30.44 inHg1031 hPa | -955 ft-291 m | 1.260 | 20 | 42°5° | 4 mph7 km/h NW | 0% | |
| 40°4° | 25°-4° | 55% | 30.46 inHg1032 hPa | -1,083 ft-330 m | 1.264 | 20 | 40°4° | 1 mph1 km/h WNW | 0% | |
| 39°4° | 26°-4° | 58% | 30.47 inHg1032 hPa | -1,154 ft-352 m | 1.267 | 20 | 39°4° | 2 mph3 km/h SSW | 0% |
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 Lime Rock
Pit box, all week
Every forecast hour for the next seven days at Lime Rock: 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 Lime Rock, and a heads-up three days out.
A year at Lime Rock
Typical for October here: highs around 63°17°, lows 46°8°, rain on 25% of days.
5-year averages from the Open-Meteo archive at the track's coordinates.
Getting to Lime Rock
60 White Hollow Road, Lakeville, CT 06039
Parking
General parking is free, in the Infield (enter at 60 White Hollow Road) or the Outfield off Route 112, a short walk over the pedestrian bridge. A guaranteed Infield spot on race days costs $30. limerock.com
Camping On site
Infield camping needs a weekend ticket (or Season Pass) plus a per-event site fee from $30. Assigned tent sites, tent-only Pines, and reserved RV spots bought in advance; no electric or water hookups. limerock.com
From the track’s own pages, checked October 2026. Prices and rules change by event, so confirm before you go.
Facts
- Location
- Lakeville, Connecticut
- Layout
- 1.5-mile, 7-turn road course
- Length
- 1.5 mi (2.41 km)
- Surface
- Asphalt
- Opened
- 1957
- Series
- IMSA, NASCAR Trucks
- Signature events
- Lime Rock Historic Festival
- Time zone
- America/New York
- Elevation
- 587 ft (179 m)