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™
St. Louis, MOlight rain669
Arlington, TXclear sky728
Houston, TXbroken clouds758
Tampa, FLfew clouds728
Cleveland, OHbroken clouds524
Kansas City, MOovercast clouds554
Anaheim, CAclear sky643
Atlanta, GAclear sky643
Chicago (AL), ILlight rain553
Chicago (NL), ILlight rain553
Cincinnati, OHovercast clouds613
Los Angeles, CAclear sky603
Miami, FLbroken clouds743
Phoenix, AZbroken clouds593
San Diego, CAscattered clouds613
Sacramento, CAclear sky551
Baltimore, MDbroken clouds461
Boston, MAclear sky351
Bronx, NYbroken clouds431
Denver, COlight rain321
Detroit, MIclear sky471
Milwaukee, WImoderate rain461
Minneapolis, MNlight rain331
Philadelphia, PAbroken clouds421
Pittsburgh, PAovercast clouds501
Queens, NYbroken clouds441
San Francisco, CAscattered clouds561
Seattle, WAovercast clouds451
Toronto, ONclear sky381
Washington, DCbroken clouds481
Data last updated: 1767916570
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