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HRF forecast value available for each contest, with detailed data throughout the game.
Detailed weather data and hourly index data for each park.
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 Location | Sky Cover | Temperature (°F) | Home Run Forecast Index™ | |
|---|---|---|---|---|
| Mexico City, México |
 broken clouds |
87 | 10 | |
| Denver, CO |
broken clouds |
73 | 9 | |
| Anaheim, CA |
 clear sky |
65 | 8 | |
| Arlington, TX |
clear sky |
79 | 8 | |
| Atlanta, GA |
broken clouds |
84 | 8 | |
| Cincinnati, OH |
 scattered clouds |
77 | 8 | |
| Houston, TX |
 moderate rain |
74 | 8 | |
| Oakland, CA |
 few clouds |
59 | 8 | |
| Phoenix, AZ |
broken clouds |
81 | 8 | |
| Pittsburgh, PA |
overcast clouds |
77 | 8 | |
| San Francisco, CA |
few clouds |
59 | 8 | |
| Washington, DC |
overcast clouds |
67 | 8 | |
| West Palm Beach, FL |
scattered clouds |
84 | 8 | |
| St. Louis, MO |
broken clouds |
71 | 6 | |
| Toronto, ON |
overcast clouds |
63 | 6 | |
| Jupiter, FL |
scattered clouds |
84 | 5 | |
| Cleveland, OH |
broken clouds |
70 | 5 | |
| Detroit, MI |
overcast clouds |
61 | 5 | |
| Los Angeles, CA |
broken clouds |
63 | 5 | |
| Minneapolis, MN |
clear sky |
68 | 5 | |
| Philadelphia, PA |
overcast clouds |
57 | 5 | |
| Tampa Bay, FL |
clear sky |
86 | 5 | |
| Baltimore, MD |
overcast clouds |
64 | 4 | |
| Chicago (AL), IL |
broken clouds |
62 | 4 | |
| Dyersville, IA |
overcast clouds |
66 | 4 | |
| Miami, FL |
broken clouds |
83 | 4 | |
| Boston, MA |
light rain |
52 | 3 | |
| Chicago (NL), IL |
broken clouds |
60 | 3 | |
| Kansas City, MO |
light rain |
58 | 3 | |
| Milwaukee, WI |
clear sky |
63 | 3 | |
| San Diego, CA |
scattered clouds |
62 | 3 | |
| Williamsport, PA |
overcast clouds |
54 | 3 | |
| Queens, NY |
moderate rain |
51 | 2 | |
| Seattle, WA |
overcast clouds |
50 | 2 | |
| Bronx, NY |
moderate rain |
51 | 1 |
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