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™
Houston, TXbroken clouds8710
Tampa, FLscattered clouds8610
Anaheim, CAclear sky728
Atlanta, GAscattered clouds798
Los Angeles, CAclear sky718
Mexico City, Mexicoclear sky848
Phoenix, AZscattered clouds858
Pittsburgh, PAmoderate rain648
San Francisco, CAfew clouds658
Cincinnati, OHovercast clouds607
Philadelphia, PAovercast clouds647
Queens, NYbroken clouds596
Sacramento, CAclear sky706
San Diego, CAclear sky696
Washington, DClight rain626
Baltimore, MDovercast clouds615
Miami, FLlight rain854
St. Louis, MOfew clouds644
Tampa Bay, FLclear sky834
Arlington, TXovercast clouds623
Boston, MAscattered clouds553
Bronx, NYclear sky593
Cleveland, OHlight rain533
Denver, CObroken clouds583
Kansas City, MOclear sky603
Minneapolis, MNscattered clouds523
Seattle, WAfew clouds612
Chicago (AL), ILovercast clouds491
Chicago (NL), ILovercast clouds481
Detroit, MIovercast clouds491
Milwaukee, WImoderate rain441
Toronto, ONovercast clouds511
Data last updated: 1777488967
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