No. 1 Miami and No. 6 Notre Dame meet Saturday on the Notre Dame campus in South Bend, Indiana, where fans and tailgaters can expect chilly temperatures in the low 40s early in the morning.

Most tailgates around the country look fair, with a few rain chances in Seattle, Lubbock, Texas, and near the New England coast.

Colder air settles into the Midwest for Sunday's NFL games.

(WEATHER LABS: Football tailgate forecasts)

Saturday

Most college tailgates look fair Saturday, but rain is possible in a few spots.

An atmospheric river starts to bring scattered rain chances to Seattle for Penn State at Washington, and showers are also possible in for games in Lubbock and Houston.

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Some isolated showers could brush the New England coast near Boston and Connecticut.

Here's a look at game-time temperatures for the top matchups:

Warmer spots (70s and 80s)

• Gainesville, Florida (Oklahoma at Florida)
• Tucson, Arizona (TCU at Arizona)
• Baton Rouge, Louisiana (Alabama at LSU)

Mild (60s)

• Fort Collins, Colorado (Boise State at CSU)
• Seattle (Penn State at Washington)

Fall chill (50s and below)

• South Bend, Indiana (Miami at Notre Dame)
• Minneapolis (UCLA at Minnesota)
• Salt Lake City (BYU at Utah)
• Lubbock, Texas (West Virginia at Texas Tech)
• Oxford, Mississippi (Georgia at Ole Miss)
• Knoxville, Tennessee (Kentucky at Tennessee)

Sunday

Sunday's NFL tailgates turn colder in the Midwest and North, while the South stays milder.

Rain chances are highest in Seattle and Boston, with a few scattered showers around Texas, where the Cowboys and Texans are both away.

Sunday's NFL tailgates are warmest in Los Angeles and Miami, with highs in the 80s.

Most other cities are mild, with highs in the 60s. The coolest tailgates are in the 50s in Seattle and Boston, where scattered rain is also possible.

Warmer (80s)

• Los Angeles (Texans at Chargers)
• Miami (Lions at Dolphins)

Mild (60s)

• San Francisco (Raiders at 49ers)
• New Orleans (Browns at Saints)
• Charlotte (Broncos at Panthers)
• Kansas City (Jets at Chiefs)

Fall chill (50s)

• Indianapolis (Cowboys at Colts)
• Seattle (Cardinals at Seahawks)
• Boston (Packers at Patriots)

(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, since 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.
• Cold safety: Add a wind-resistant outer layer to your gameday fit.
• 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.