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™
Tampa, FLclear sky718
Miami, FLbroken clouds757
Anaheim, CAbroken clouds685
Sacramento, CAclear sky645
San Diego, CAscattered clouds695
Tampa Bay, FLclear sky735
Arlington, TXclear sky644
Baltimore, MDovercast clouds544
Los Angeles, CAbroken clouds654
Philadelphia, PAovercast clouds514
Phoenix, AZfew clouds734
San Francisco, CAbroken clouds654
Seattle, WAclear sky554
Washington, DCbroken clouds544
Atlanta, GAbroken clouds523
Denver, COclear sky523
Houston, TXclear sky673
Las Vegas, NVbroken clouds593
Bronx, NYovercast clouds482
Queens, NYovercast clouds492
Williamsport, PAlight rain411
Boston, MAmoderate rain461
Chicago (AL), ILlight rain411
Chicago (NL), ILbroken clouds411
Cincinnati, OHovercast clouds441
Cleveland, OHovercast clouds431
Detroit, MIscattered clouds431
Kansas City, MOclear sky381
Milwaukee, WIovercast clouds391
Minneapolis, MNclear sky301
Pittsburgh, PAovercast clouds431
St. Louis, MOovercast clouds441
Toronto, ONclear sky371
Data last updated: 1794538566
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