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™
Arlington, TXscattered clouds738
Baltimore, MDovercast clouds758
Bronx, NYovercast clouds748
Chicago (NL), ILovercast clouds658
Houston, TXclear sky748
Philadelphia, PAovercast clouds768
Pittsburgh, PAovercast clouds718
Queens, NYovercast clouds758
St. Louis, MOmoderate rain698
Washington, DCovercast clouds778
Cleveland, OHovercast clouds687
Kansas City, MOclear sky676
Sacramento, CAbroken clouds626
San Francisco, CAovercast clouds566
Tampa Bay, FLclear sky706
Anaheim, CAfew clouds635
Cincinnati, OHovercast clouds725
Toronto, ONovercast clouds615
Atlanta, GAfew clouds674
Chicago (AL), ILovercast clouds664
Detroit, MIovercast clouds654
Los Angeles, CAclear sky624
Miami, FLlight rain734
Milwaukee, WImoderate rain604
Phoenix, AZclear sky764
Tampa, FLclear sky694
Boston, MAovercast clouds623
Denver, COclear sky573
Minneapolis, MNscattered clouds573
San Diego, CAfew clouds633
Seattle, WAlight rain421
Data last updated: 1776308168
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