Do certain weather conditions lead to more home runs?

Yes! Weather conditions can change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple way to see the if weather will help or hinder baseball flight during a game. The Home Run Forecast Index demonstrates a strong correlation with the number of HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand HRFI forecast data by team and for each game.

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HRF forecast value available for each contest, with detailed data throughout the game.

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Current Weather Conditions and HRF Index

The table below shows the Home Run Forecast Index (HRFI) value for each big league ballpark. The HRFI ranges from 1 to 10, with 10 indicating the most favorable weather conditions for ball fight and 1 indicating least favorable. Learn more about how we calculate this index here.

This data is updated hourly at the top of the hour. For ballparks with a retractable roof, the index is calculated for open roof conditions. Check local sources for roof status. For ballparks with a permanent roof, the index is calculated for indoor conditions.

Ballpark LocationSky CoverTemperature (°F)Home Run Forecast Index™
Atlanta, GAbroken clouds758
Tampa, FLfew clouds818
Houston, TXovercast clouds776
Phoenix, AZbroken clouds706
Miami, FLbroken clouds825
Arlington, TXclear sky644
Kansas City, MOclear sky554
San Diego, CAovercast clouds634
Seattle, WAbroken clouds534
Sacramento, CAbroken clouds543
Anaheim, CAovercast clouds663
Baltimore, MDbroken clouds553
Cincinnati, OHscattered clouds533
Denver, COclear sky583
Los Angeles, CAovercast clouds643
Philadelphia, PAovercast clouds513
San Francisco, CAclear sky603
St. Louis, MOclear sky553
Washington, DCbroken clouds573
Boston, MAovercast clouds471
Bronx, NYovercast clouds501
Chicago (AL), ILbroken clouds481
Chicago (NL), ILbroken clouds481
Cleveland, OHbroken clouds461
Detroit, MIclear sky451
Milwaukee, WIovercast clouds451
Minneapolis, MNclear sky501
Pittsburgh, PAbroken clouds501
Queens, NYbroken clouds501
Toronto, ONbroken clouds431
Data last updated: 1763837768
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