Temperatures are clashing this week as we see the cold air and the warm air contrast across the country.

Warmth builds from the Southern Plains into the Midwest and Southeast, while the Rockies, Northern Plains, Northeast and Pacific Northwest stay cooler.

The good news for tailgaters is that there's not much rain in the forecast for the games, but some spots can still expect a few showers.

(WEATHER LABS: Football tailgate forecasts)

Saturday

College GameDay is sticking with Utah once again this week as the Utes take on Houston.

It's dry and cool, with Salt Lake City in the mid-50s. Bring a jacket for the crowd outside and expect a big contrast for Houston fans used to the upper 80s back home.

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Notable Top 25 matchups:

Warm (in the 80s):

• Ole Miss at Texas
• Cal at SMU
• Pitt at Miami
• BYU at UCF

Cooler (60s and 70s):

• LSU at Auburn
• Texas A&M at Bama
• Vanderbilt at Kentucky
• Tennessee at South Carolina
• USC at Wisconsin
• Rutgers at Northwestern
• Michigan State at UCLA
• Indiana at Michigan

Rain watch: Showers and storms stretch from Minnesota through the Plains into Colorado and New Mexico, with a rain and mountain snow showers possible late in the Pacific Northwest. Most of the top games stay dry.

Iowa at Minnesota: Mid-60s, with showers to the north and west of the Twin Cities that are worth watching.

Sunday

Sunday brings the same temperature contrast as Saturday. Temperatures run from the low 80s in Texas to the mid-50s in Seattle, with warmth across the South and Southwest and cooler air in the Northeast and Pacific Northwest.

Warm (around 80 or higher):

• Giants at Texans: Roof. The tailgate lots are still hot and humid, so plan for shade and water.
• Broncos at Cardinals: Roof. Tailgaters in Arizona are still in the warm sunshine outside.
• Rams at Raiders: Dome. The parking lots are warm in Las Vegas.

Cooler (70s and below):

• Browns at Titans: No roof, so fans are outside for the whole game.
• 49ers at Falcons: Roof, which keeps the game comfortable, even as the roof is expected to be open.
• Bucs at Panthers: No roof, and a comfortable day for an outdoor tailgate.
• Bengals at Ravens: No roof, so a light layer is a good idea.
• Dolphins at Jets: No roof, and fall-like in the Northeast.
• Packers at Lions: Dome, which keeps the game comfortable.
• Colts at Vikings: Dome, so the game is comfortable, but bring a jacket for the tailgate outside.
• Chiefs at Seahawks: No roof, and the coolest of the group.

(MORE: The top 10 weather games In NFL history)

Rain and storms: Chiefs at Seahawks is the one top NFL game with a rain threat, so tailgaters in Seattle should plan for showers. A rain jacket or poncho is a good idea.

Storms in the Southern Plains and Rockies stay away from the other NFL games listed, so the rest of the slate looks dry.

(MORE: The ultimate tailgate playbook for every football forecast)

Tailgate safety: know your forecast, stay aware

Whether you're facing heat or storms this weekend, staying aware of changing conditions — and having a plan to adjust — is the best way to stay safe at your tailgate:

• Check the forecast for your specific tailgate location and arrival time, not just the daily high, because conditions can shift significantly between morning setup and kickoff.
• Heat safety: Stay hydrated, seek shade whenever possible, take breaks in air conditioning if available and know the signs of heat exhaustion — dizziness, heavy sweating and nausea.
• Storm safety: Monitor local radar in the hours before and during your tailgate, since storm timing can shift quickly.
• Lightning safety: If thunder roars, go indoors — a hard-topped vehicle counts if no building is nearby. Wait at least 30 minutes after the last thunderclap before heading back outside.
• Secure your setup: Tents, canopies and loose gear should be tied down or ready to pack up quickly if storms move in.

Faiza Mohammed is a meteorologist intern at weather.com. She studied geography and worked with the Weather Dawgs team at the University of Georgia. She also received her master's in Earth and Atmospheric Sciences from the Georgia Institute of Technology.