By Doug Schneider

The weather is looking good for the 69th running of the Mobil 1 Twelve Hours of Sebring. Conditions will start out hot and humid, then a cold frontal passage Thursday night will bring drier and cooler conditions on Friday and Saturday. Over the past few days, the models have been in good agreement with this pattern, and have not changed much from one run to the next, so my confidence in this forecast is high.

High pressure will be located off the east coast of Florida by the middle of the week, which will produce a warm southerly flow across the Peninsula. With mostly sunny skies, temperatures will reach near 90 degrees on Wednesday. In my forecasting experience with Sebring, I have noticed that the track area is often a few degrees warmer than surrounding area away from all the concrete, so my temperature forecast is probably higher than what you might see from other sources (which is an advantage to using our track-specific forecasts!).

This hot and humid pattern will continue into Thursday. A low pressure system will be moving across the eastern U.S. on Thursday, and this will create breezy conditions in the afternoon. Gusts of 25-30 mph may be possible at times.

A cold front will move across the Florida Peninsula Thursday night. With the nighttime passage, instability will be lacking, so it won't pack much of a punch. I don't even expect any thunderstorms, just a few isolated showers here and there that might produce a couple hundredths of an inch of rain. The main question is the timing of the showers, and I think the most likely period for a shower will be between 2 am and 8 am. This timing makes it unlikely that any racing action will be affected. If the models trend slower with the front over the next few days, then it will be more potential for impacts Friday morning.

A drier air mass will build into the area through Friday, with clearing skies and lower humidity expected. Saturday looks like beautiful weather for the main event, with mostly sunny skies and highs in the upper 70s to around 80. 

​Check back through the week for updates to the forecast. 

By: Stephen McCoy

A cooler weekend awaits, especially in the mornings, after a relatively warm Friday. The cold front mentioned in the previous forecasts sis still expected to move through the region Friday night/early Saturday morning. The front will bring a likely chance for rain during the overnight hours, mostly around midnight, but chances will fall off Saturday morning before sunrise; no precipitation is anticipated for the remainder of the weekend. Little impact is expected to track sessions as a result, however early sessions might have to fit the rain tires.

Winds behind the front will be largely from the West/Northwest, bringing in cooler air from the northern Pacific, with temperatures during the mornings in the upper 30's to low 40's and afternoon temperatures in the upper 50's to low 60's. Moist air in the upper levels of the atmosphere from the Southwest will result in partly to mostly cloudy conditions for both Saturday and Sunday while some low level cloud cover is possible, especially in the mornings; patchy fog may be present Sunday morning.

By: Stephen McCoy

Little change to the conditions for this weekend's races at Sonoma Raceway. A cold front approaching the region from the West towards the end of the week will cause warmer temperatures to occur in the region as winds ahead of the front will bring in air from the South. Moisture from the Pacific will bring the possibility for fog Friday morning, but should clear by mid-day. The front is expected to move through the Bay area overnight Friday into Saturday morning, resulting in a likely chance for showers during the overnight period, but conditions during the day should be dry. Winds behind the front from the West/Northwest will cause temperatures to cool slightly for the remainder of the weekend.

By: Stephen McCoy

After a quick warm-up for the early part of the week, cooler conditions will move in for the weekend with chances for precipitation on Saturday and Sunday.

Fog may be present to start of Friday morning due mostly clear nighttime conditions and surface/low level winds from the South bringing moisture off the Pacific. These winds will continue for most of the day as the result of a cold front approaching from the west. Warm air moving ahead of the front will give a high temperature for the day in the low 60's. Conditions for the day will be partly cloudy with cloud cover increasing into the evening and overnight.

The cold front is expected to move through the Bay area early Saturday morning, resulting in a chance for showers mainly before noon.Winds will shift behind the front to the West/Northwest, bringing cooler air to the region, with a high anticipated in the low 50's. Wind speeds are expected between 5-15 MPH through the day, with some gusts possible upwards of 25 MPH. The cooler conditions from Saturday will linger into Sunday along with a slight chance for scattered showers during the morning.

As By Doug Schneider

No surprises are in store for the weather during the 24 Hours of Daytona. Dry weather is expected through the race, with mostly sunny skies today followed by clouds generally increasing through tonight and tomorrow morning. There is a chance of rain that will arrive Sunday night, but it will not arrive until long after the end of the race.

By Doug Schneider

The weather for the Rolex 24 continues to look great with today's forecast update.

Today, a few light showers are possible as a cold front approaches the area. Temperatures will be quite warm, with a high near 80 degrees. The cold front will move through tonight.

Thursday will be much cooler behind the cold front, and it will be breezy as well with gusts up to 25 mph at times. 

The remainder of the event will see sunny skies and a gradual warming trend as winds shift to a southerly direction by Sunday. There will be a low chance of light showers arriving Sunday night. This timing has been consistent for the past few days, but I will keep an eye on it in case it moves up into Sunday afternoon and potentially affect the end of the race. 

By Doug Schneider

Good news - the weather looks great for the 24 Hours of Daytona this year. After a cold front moves through on Wednesday night, large area of high pressure will be moving across the Southeast Thursday through Sunday, keeping dry weather and mostly sunny skies in the forecast.

The only chance I rain that I can see at this moment is on Wednesday, and even that looks very marginal. A cold front will be approaching during the day, and crossing Daytona at night, so what little rain may come with this front could be mostly on Wednesday night. There will be a couple practice sessions that day, but I don't expect that there will be enough rain to have any impact - just a few sprinkles or light showers. 

Behind the cold front on Thursday, the weather will get quite a bit colder, with breezy and gusty winds. Gusts of 25 to 30 mph can be expected at times. North winds at 10-15 mph will continue into Friday, which will keep temperatures cool, but at least it will be sunny all day. 

On Saturday, high pressure will move off the east coast, shifting winds to a more southerly direction, which will help warm temperatures into the 70s for the start of the race. An upper level low pressure trough will approach on Sunday, but any rain with it is expected to hold off until Monday. It will result in some increasing clouds on Sunday afternoon, but temperatures should still be able to rise into the mid 70s by the end of the race.

I plan to have the next forecast update posted on Wednesday, unless there's a major change in the forecast.​

by Scott Martin

FRIDAY:  A cold front will be approaching from the north but will remain well out of the area for the day. We'll have a mix of sun and clouds throughout the day with rain being unlikely at this point. Temperatures at 9 am will be right around 60 degrees and will rise into the lower 70s for the daytime high. Winds will be out of the west-southwest at 5-10 MPH throughout the day.

SATURDAY: The cold front will move through the area but it will mostly be a dry front. Clouds will build and there will be just enough moisture that we'll have to add a very small chance of a passing shower or two. That small shower chance will persist through the entire day. 9 am temperatures will be in the lower 60s and will only climb into the upper 60s for the high. Temperatures will steadily drop throughout the evening and will be around 60 degrees at 9 pm for the end of the racing day. Winds will be out of the northwest to north at 2-10 MPH. Chance of rain for now is at 20%.

SUNDAY: The cold front will be south of the area over the extreme southern parts of South Florida. Skies will start off with more clouds than sun but will eventually become partly cloudy by the afternoon. 10 am temperatures will be in the mid-60s and will only climb into the upper 60s for the daytime high. Winds will be out of the east-northeast to northeast at 5-10 MPH.