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™
Washington, DCclear sky8610
Anaheim, CAbroken clouds688
Arlington, TXovercast clouds818
Atlanta, GAbroken clouds798
Baltimore, MDbroken clouds838
Boston, MAbroken clouds728
Bronx, NYbroken clouds758
Cincinnati, OHlight rain768
Houston, TXbroken clouds808
Philadelphia, PAbroken clouds808
Phoenix, AZscattered clouds778
Queens, NYbroken clouds768
San Diego, CAbroken clouds698
San Francisco, CAovercast clouds598
Los Angeles, CAbroken clouds657
Pittsburgh, PAovercast clouds646
Sacramento, CAovercast clouds586
Tampa, FLbroken clouds835
Miami, FLbroken clouds784
Tampa Bay, FLclear sky824
Kansas City, MOovercast clouds553
St. Louis, MOovercast clouds523
Chicago (AL), ILovercast clouds371
Chicago (NL), ILovercast clouds371
Cleveland, OHmoderate rain371
Denver, COscattered clouds501
Detroit, MIlight rain351
Milwaukee, WIbroken clouds351
Minneapolis, MNbroken clouds431
Seattle, WAmoderate rain461
Toronto, ONovercast clouds381
Data last updated: 1775066169
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