MLB Weather Report for Tuesday, September 20 (What's the Forecast for Every MLB Team and Matchup Today?)

Rain and lightning delay at Coors Field.
Rain and lightning delay at Coors Field. / Kirby Lee-USA TODAY Sports
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Every Major League Baseball team is in action on Tuesday, Sept. 20, and we have 16 games that will be played with the Arizona Diamondbacks and Los Angeles Dodgers playing a day-night doubleheader. 

With this many games, there are several important things to do to handicap them, and one is knowing the forecast for each game and how it could affect the total. Each day at BetSided, we break down the weather for every MLB game as well as each team’s odds. 

Here’s how things look for Tuesday, Sept. 20: 

Los Angeles Dodgers vs. Arizona Diamondbacks Game 1 Weather

  • Forecast: 77 degrees and sunny, wind blowing out to center field at 6 mph, slightly helping the OVER. 

Houston Astros vs. Tampa Bay Rays Weather

  • Forecast: This game is played in a dome.

Boston Red Sox vs. Cincinnati Reds Weather

  • Forecast: 83 degrees and sunny, wind blowing at 2 mph in from center field. This shouldn’t affect the total much. 

Chicago Cubs vs. Miami Marlins Weather

  • Forecast: This game is played in a dome.

Toronto Blue Jays vs. Philadelphia Phillies Weather

  • Forecast: 77 degrees and sunny, wind blowing in from left center field at 5 mph, slightly helping the UNDER. 

Detroit Tigers vs. Baltimore Orioles Weather

  • Forecast: 78 degrees and sunny, wind blowing in from left center field at 4 mph, slightly helping the UNDER. 

Washington Nationals vs. Atlanta Braves Weather

  • Forecast: 85 degrees and sunny, chance of rain of 12%. Wind blowing out to right field at 5 mph, slightly helping the OVER. 

Pittsburgh Pirates vs. New York Yankees Weather

  • Forecast: 77 degrees and sunny, wind blowing out to the short porch in right field at 6 mph, helping the OVER. 

New York Mets vs. Milwaukee Brewers Weather

  • Forecast: This game is played in a dome.

Los Angeles Angels vs. Texas Rangers Weather

  • Forecast: This game is played in a dome.

Minnesota Twins vs. Kansas City Royals Weather

  • Forecast: 92 degrees and sunny, wind blowing out to left field at 6 mph, helping the OVER. 

Cleveland Guardians vs. Chicago White Sox Weather

  • Forecast: 85 degrees and sunny, wind blowing in from right field at 11 mph, helping the UNDER. 

San Francisco Giants vs. Colorado Rockies Weather

  • Forecast: 81 degrees and overcast with rain expected later in the game, which could shorten it and help the UNDER. Chance of rain of 34% by 11 p.m. Wind blowing in from right field at 11 mph. 

St. Louis Cardinals vs. San Diego Padres Weather

  • Forecast: 70 degrees and sunny, wind blowing in from left field at 9 mph, helping the UNDER. 

Seattle Mariners vs. Oakland Athletics Weather

  • Forecast: Rain expected at game time. 68 degrees with a 40% chance of rain. Wind blowing out to center field at 8 mph. 

Arizona Diamondbacks vs. Los Angeles Dodgers Game 2 Weather

  • Forecast: 68 degrees and sunny, wind blowing out to center field at 12 mph, helping the OVER.

Find Peter Dewey’s full betting record here.