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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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™
Houston, TXbroken clouds758
Tampa, FLscattered clouds778
Arlington, TXheavy intensity rain617
San Diego, CAclear sky667
Anaheim, CAclear sky656
Los Angeles, CAclear sky645
Phoenix, AZfew clouds675
Sacramento, CAclear sky574
Miami, FLbroken clouds784
Atlanta, GAbroken clouds603
Baltimore, MDfew clouds533
Cincinnati, OHovercast clouds523
Denver, COclear sky543
Kansas City, MOmoderate rain523
San Francisco, CAbroken clouds573
Washington, DCclear sky543
Boston, MAbroken clouds361
Bronx, NYfew clouds441
Chicago (AL), ILovercast clouds501
Chicago (NL), ILovercast clouds491
Cleveland, OHscattered clouds471
Detroit, MIbroken clouds451
Milwaukee, WIclear sky461
Minneapolis, MNclear sky481
Philadelphia, PAscattered clouds451
Pittsburgh, PAscattered clouds501
Queens, NYscattered clouds431
Seattle, WAbroken clouds451
St. Louis, MOmoderate rain471
Toronto, ONovercast clouds361
Data last updated: 1771095367
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