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, TXfew clouds9410
Houston, TXfew clouds9110
Anaheim, CAclear sky828
Atlanta, GAbroken clouds808
Chicago (AL), ILclear sky698
Cincinnati, OHclear sky768
Detroit, MIfew clouds748
Kansas City, MOovercast clouds798
Los Angeles, CAfew clouds798
Miami, FLlight rain868
Sacramento, CAclear sky828
San Diego, CAclear sky808
San Francisco, CAclear sky678
St. Louis, MOclear sky808
Tampa, FLscattered clouds848
Washington, DCovercast clouds707
Minneapolis, MNovercast clouds726
Phoenix, AZmoderate rain726
Pittsburgh, PAovercast clouds646
Seattle, WAovercast clouds646
Baltimore, MDovercast clouds685
Las Vegas, NVclear sky795
Milwaukee, WIclear sky725
Philadelphia, PAscattered clouds665
Tampa Bay, FLclear sky855
Toronto, ONovercast clouds665
Williamsport, PAovercast clouds664
Bronx, NYovercast clouds624
Chicago (NL), ILclear sky694
Cleveland, OHovercast clouds694
Denver, COovercast clouds724
Boston, MAmoderate rain563
Queens, NYovercast clouds623
Data last updated: 1790632569
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