{"id":253524,"date":"2026-08-13T10:57:58","date_gmt":"2026-08-13T14:57:58","guid":{"rendered":"https:\/\/ibkrcampus.com\/campus\/?post_type=glossary-terms&#038;p=253524"},"modified":"2026-08-18T10:47:10","modified_gmt":"2026-08-18T14:47:10","slug":"ensemble-forecast","status":"publish","type":"glossary-terms","link":"https:\/\/www.interactivebrokers.com\/campus\/glossary-terms\/ensemble-forecast\/","title":{"rendered":"Ensemble Forecast"},"content":{"rendered":"\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/ndcdyn.interactivebrokers.com\/mkt\/?src=glossGenAcc&amp;url=%2FUniversal%2FApplication\" target=\"_blank\" rel=\"noreferrer noopener\">Open Account<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An ensemble forecast runs a weather or climate model many times with slightly perturbed initial conditions or model configurations in order to sample the range of plausible outcomes rather than produce a single trajectory. The spread among members gives an estimate of forecast uncertainty, and the proportion of members meeting a condition, such as the share reaching Category 3 intensity at landfall, can be read as a probability. Ensemble-derived probabilities are directly comparable to prices in a binary contract market, which makes them a common benchmark for assessing whether market-implied odds are adding information.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/ibkr-climate-energy\/daily-high-temperature-markets-at-forecastex\/\">Daily High Temperature Markets at ForecastEx<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/hurricane-prediction-market-commentary-8-15-2025\/\">Hurricane Prediction Market Commentary 8\/15\/2025<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/hurricane-prediction-market-update-10-27-2025\/\">Hurricane Prediction Market Update [10\/27\/2025]<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/prediction-market\/hurricane-prediction-market-update-8-19-2025\/\">Hurricane Prediction Market Update 8\/19\/2025<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/prediction-market\/where-are-the-hurricanes-prediction-market-update-9-10-2025\/\">Where Are The Hurricanes? Prediction Market Update [9\/10\/2025]<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/will-the-atlantic-overturning-circulation-amoc-collapse-prediction-markets-can-quantify-sentiment\/\">Will the Atlantic Overturning Circulation (AMOC) Collapse? Prediction Markets Can Quantify Sentiment<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/ibkr-climate-energy\/forecastex-odds-of-a-major-hurricane-landfall-compared-to-weather-models\/\">ForecastEx Odds of a Major Hurricane Landfall Compared to Weather Models<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/prediction-market\/fair-value-weather-climate-monday-august-3-2026\/\">Fair Value Weather &amp; Climate \u2014 Monday, August 3, 2026<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>An ensemble forecast runs a weather or climate model many times with slightly perturbed initial conditions or model configurations in order to sample the range of plausible outcomes rather than produce a single trajectory. The spread among members gives an estimate of forecast uncertainty, and the proportion of members meeting a condition, such as the share reaching Category 3 intensity at landfall, can be read as a probability. Ensemble-derived probabilities are directly comparable to prices in a binary contract market, which makes them a common benchmark for assessing whether market-implied odds are adding information.<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"traders-glossary":[13254,13251],"class_list":["post-253524","glossary-terms","type-glossary-terms","status-publish","traders-glossary-trading-terms-e","traders-glossary-trading-alphabet"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Archives Term | IBKR Glossary | IBKR Campus<\/title>\n<meta name=\"description\" content=\"An ensemble forecast runs a weather or climate model many times with slightly perturbed initial conditions or model 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