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, TXovercast clouds718
Chicago (NL), ILovercast clouds608
Cleveland, OHscattered clouds648
Houston, TXovercast clouds748
St. Louis, MOlight rain596
Tampa, FLbroken clouds706
Chicago (AL), ILovercast clouds605
Cincinnati, OHscattered clouds675
Milwaukee, WIovercast clouds574
Pittsburgh, PAovercast clouds654
Anaheim, CAclear sky633
Atlanta, GAclear sky613
Detroit, MIfew clouds573
Los Angeles, CAclear sky623
Miami, FLscattered clouds753
Phoenix, AZbroken clouds563
San Diego, CAfew clouds543
San Francisco, CAclear sky573
Sacramento, CAclear sky501
Baltimore, MDovercast clouds411
Boston, MAovercast clouds351
Bronx, NYovercast clouds371
Denver, COclear sky211
Kansas City, MOovercast clouds361
Minneapolis, MNlight snow281
Philadelphia, PAovercast clouds391
Queens, NYovercast clouds371
Seattle, WAovercast clouds501
Toronto, ONovercast clouds411
Washington, DCovercast clouds421
Data last updated: 1772888167
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