It's been a pleasure to complete another year of bringing you weather forecasts for your favorite racing series. 2023 will be the ninth year that Scott and I have been running this site, and we are thankful to have Stephen and Harris join us to expand our efforts and keep it going strong. We truly appreciate all our followers who share in our loves of weather and racing. 

Without further ado, here are the best photos from 2022 that combine our two favorite things - weather and racing! ​Hope you enjoy these photos from some excellent photographers. Have a happy New Year, and we'll see you in 2023!

By: Stephen McCoy

Not much change in the forecast since the initial post for the Kyalami 9 Hour. A cold front is still expected to move through the region on Friday, bringing a likely chance for showers and/or thunderstorms, especially during the afternoon and evening. In addition, winds will increase on Friday with some gusty conditions present as well, though stronger winds will move in behind the front on Saturday. Saturday will also see a drop in temperatures, with highs only in the low 70's F (low 20's C). Scattered showers may be present in the area on Saturday, though precipitation totals will be much less than from Friday.

by Scott Martin

A cold front will be working through the area on Friday that will bring a moderate chance of showers during the morning hours, and with the heating of the day, more showers and a few thunderstorms are expected to develop. Unfortunately, those higher rain chances look to come during the Downtown Speedway Parade. Skies will be mostly cloudy to overcast where there is no rain. Temperatures will start off in the lower 60s at the start of the day and will warm to just shy of 70 degrees for the daytime high. Winds will be out of the southeast to southwest at 5-10 mph. Chance of rain increases from 40% to 60%.

The cold front with the associated surface low will be slightly just to the east of Indiana on Saturday morning that will keep clouds and a small chance of a passing shower in the forecast during the morning hours. Once we get into the afternoon, skies will become mostly clear as clouds will be diminishing and rain chances dissipate. However, winds will be breezy out of the northwest, averaging 5-15 mph with gusts up to 25 mph at times. Temperatures will be cool throughout the day, starting off in the mid-50s and only rising into the upper 50s for the high. Chance of rain is around 30% to start, with chances decreasing throughout the morning.

Sunday will be a much brighter day at IMS as skies will be mainly sunny, but temperatures will remain on the cool side. A little breeze will make those temperatures feel even cooler at times as winds will be averaging 5-10 mph out of the west with the potential for gusts up to 20 mph. Temperatures will start off in the upper 40s when the gates open and will only climb into the lower 60s for the daytime high.

By: Stephen McCoy

Conditions for this weekend at Watkins Glen have remained mostly as expected, with a shift of precipitation from Friday to Saturday. A surface low pressure system located off the Atlantic coast will cause winds to be largely from the south to southeast on Friday, bringing moisture off the ocean and resulting in mostly cloudy to overcast conditions. The increased moisture may also cause a slight chance for isolated showers in the region, especially in the afternoon. On Saturday, a cold front extending south from a surface low located over Canada is expected to move through the region, bringing a higher chance for precipitation during the afternoon. Winds behind the front will shift to the west to northwest, cooling temperatures into Sunday with cloud cover decreasing through the day as drier air moves in.

By: Stephen McCoy

Mixed conditions will start the event off on Friday and will improve as the weekend progresses.

Around mid-week, a low pressure system will move eastwards over Canada to the north of the region. This system will bring a cold front through the area with a high percentage of rainfall and a drop in temperatures expected Wednesday into Thursday. A second low will take a similar route as the first during the early part of the weekend with its warm front moving northward through New England Thursday into Friday morning. This will allow temperatures to warm again into the upper 70's, which will remain largely consistent through the next few days. Of note: the National Hurricane Center has identified a disturbance in the Atlantic which has a 50% chance to develop into a tropical system within the next 5 days. Current model guidance suggests the system will curve along the east coast before moving out into the northern Atlantic. This has been brought up as its location at the beginning of the weekend will bring moisture from the Atlantic to the region, resulting in a chance for scattered showers through the day, especially during the afternoon. As mentioned, conditions will improve for the remainder of the weekend as the low and potential tropical system move further eastward. Winds shifting to the west/northwest on Sunday will bring slightly cooler temperatures and clearer conditions. Saturated air at the surface and a temperature inversion just above the surface will result in a potential for fog for both Saturday and Sunday morning.

by Scott Martin

After a very busy past two weeks for me covering severe weather, flooding, and the passage of Tropical Storm Fred through the southeastern US, I finally can post a forecast discussion for the races that I am covering this weekend. I apologize to the Indycar fans who stop by our site for the forecasts, as those were limited to Facebook and Twitter posts due to the amount of coverage I was taking part in with my day job. Here is what I have for you for this weekend's World Challenge action at Road America.

On Friday, a warm front will be working its way northward to the southern part of Wisconsin that will keep an already unstable atmosphere active as there will be plenty of heavy showers and storms that will already be moving through the northern half of Wisconsin. For the track, scattered to numerous showers and storms will be possible during the morning and into the start of the afternoon hours, but rain chances will drop to a small chance by the mid-afternoon hours. Skies will be mostly cloudy throughout the day, with the afternoon high maxing out in the mid-70s. Rain chances will be around 50% to start the day, but will eventually fall to around 30% by the mid-afternoon hours. Winds will be out of the southeast at 5-15 mph.

The good news is the coverage in the scattered shower and thunderstorm activity will be less on Saturday, even though we'll be in-between a warm front to the north and a cold front to the west. The overall rain chance will be maxed out around 40% mainly during the morning hours, but becoming a little less likely during the afternoon to early evening hours. Skies will be partly cloudy, with afternoon highs topping out in the lower 80s. Winds will be out of the south at 5-10 mph.

The cold front will get closer to the area on Sunday, and it will keep the overall shower and thunderstorm chances around 40%, mainly during the afternoon hours, but we can't rule out a passing shower before that. Skies will be partly cloudy and afternoon highs will max out in the lower 80s. Winds will be out of the southwest at 5-10 mph.

By Doug Schneider

Today, some scattered to isolated showers and thunderstorms will be possible in Middle Tennessee. There is only a slight chance of one of the showers passing over the downtown area, so I have the chance at 20% with a low impact. A dry day is more likely. With mostly cloudy skies today, temperatures will peak in the mid 80s.

More sunshine is expected Saturday and Sunday, which will bring afternoon temperatures into the 90s. With a high pressure ridge building over the area Saturday, showers are unlikely. 

I'll be a the race starting this afternoon, and I'll try to post weather updates on Twitter if necessary. Follow @RacecastWx. 

By Doug Schneider

I expect that the weather will cooperate for the inaugural Music City Grand Prix in Nashville, Tennessee. No rain is expected at this time, and although temperatures will be warm, the humidity won't be oppressively high. For Nashville in early August, it looks pretty good.

Through much of the middle portion of the week, there will be a broad upper level trough over the eastern U.S. with a few small troughs that ride around the larger trough. The main impact of this trough for Middle Tennessee will be to push the deep moisture east of the Appalachian Mountains, and keep temperatures fairly cool in Nashville. A secondary trough passage will occur on Friday, but there will be a lack of moisture that makes the chance of rain very low. Friday will have some partial cloud cover, and there is one model that generates some rain, but at this time I think a dry day is most likely. 

Nashville will be on the west side of the trough on Saturday, which will keep dry weather and mostly sunny skies in the forecast. With a high pressure ridge slowly building in, temperatures will trend upward into the lower 90s by Sunday. Humidity levels will be rising too, but dewpoints are expected to be in the upper 60s to near 70, which could be much worse for this time of year in Nashville. The normal high for Nashville this time of year is around 91, so we should see highs in that neighborhood. 

I'll be attending the race this weekend. As a resident of Tennessee, it's exciting to have a race in my home state!