Tuesday's Daytona 500, NASCAR Speedweek weather report: Which races have rain in forecast?

DAYTONA BEACH — When it comes to the weather, a lot can change in an hour in Florida, much less in a day.

And while there were some developments in the outlook for this weekend and the 66th running of the Daytona 500, that change wasn't necessarily for the better.

The chance of rain on Sunday dropped just slightly, falling from 70% to 66% for Great American Race day but Saturday's spiked, going from 50% to 82%. That could be even more problematic with not one, but two races scheduled as the ARCA Menards Series and Xfinity Series are both scheduled to open their respective seasons.

Friday's outlook for the opener of the Craftsman Truck Series, the Fresh From Florida 250, still looks favorable with just a 6% chance of rain.

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High temperatures are expected to hover in the low 70s until Sunday when it falls to 63 degrees. Speedweek is set to open on Wednesday night with pole qualifying for the Daytona 500, scheduled for an 8:15 start.

Here's an up-to-date, day-to-day weather outlook for the entirety of Speedweek as well as some other pertinent information as NASCAR sets to open its 76th season:

Daytona Beach weather for Speedweek

• Wednesday, Feb. 14: Sunny, high of 64, 4% chance of rain, 11 mph wind from the North

• Thursday, Feb. 15: Partly cloudy, high of 71, 6% chance of rain, 6 mph wind, East-Southeast

• Friday, Feb. 16: Cloudy, high of 71, 6% chance of rain, 6 mph wind, North-Northwest

• Saturday, Feb. 17: Rainy, high of 71, 82% chance of rain, 13 mph wind from the West

• Sunday, Feb. 18: Rainy, high of 63, 66% chance of rain, 11 mph wind from the North

Daytona Beach radar

How much are Daytona 500 tickets?

Like StubHub and SeatGeek! Currently, single tickets can be found starting at around $130.

Speedweek schedule of events

• Wednesday, Feb. 14: Cup Series, Daytona 500 pole qualifying, 8:15 p.m.

• Thursday, Feb. 15: ARCA Menards Series practice, 4:05-4:55 p.m.; Craftsman Truck Series practice, 5:05-5:55; Cup Series, Bluegreen Vacations Duel 1, 7; Cup Series, Bluegreen Vacations Duel 2, 8:45 (approx.)

• Friday, Feb. 16: ARCA Menards Series qualifying, 1:30 p.m.; Craftsman Truck Series qualifying, 3; Xfinity Series practice, 4:35-5:25; Cup Series practice, 5:35-6:25; Craftsman Truck Series, Fresh From Florida 250, 7:30

• Saturday, Feb. 17: Cup Series final practice, 10:30-11:20 a.m.; Xfinity Series qualifying, 11:30; ARCA Menards Series, Daytona ARCA 200, 1:30 p.m.; Xfinity Series, United Rentals 300, 5

• Sunday, Feb. 18: 66th Daytona 500, 2:30 p.m.

What channel is the Daytona 500 on?

The Daytona 500 will air on Fox.

Daytona 500 betting odds

(Latest lines according to Hard Rock bet)

• +1000: Denny Hamlin, Ryan Blaney

• +1100: Brad Keselowski

• +1200: Joey Logano, Chase Elliott, Chris Buescher

• +1300: William Byron

• +14000: Kyle Busch, Kyle Larson

• +1750: Bubba Wallace, Christopher Bell

• +2000: Martin Truex. Jr.

• +2250: Ricky Stenhouse Jr., Tyler Reddick, Austin Cindric, Ross Chastain

• +2500: Ty Gibbs, Erik Jones

• +3000: Josh Berry, Austin Dillon, Alex Bowman, Chase Briscoe, Michael McDowell

• +4000: Daniel Suarez, Ryan Preece

• +5000: Jimmie Johnson, John Hunter Nemechek, Noah Gragson

• +6000: Zane Smith, Carson Hocevar, Corey LaJoie, AJ Allmendinger, Todd Gilliland, Justin Haley

• +7500: Riley Herbst, David Ragan, Kaz Grala, Harrison Burton, Daniel Hemric

• +10000: Anthony Alfredo

• +15000: BJ McLeod

This article originally appeared on The Daytona Beach News-Journal: Daytona 500 weather: Rain threatens NASCAR, Xfinity, ARCA races