{
  "as_of": "2026-07-30T02:07:56.203Z",
  "market": {
    "ticker": "KXHIGHCHI-26JUL29",
    "venue": "kalshi",
    "title": "Will the high temp in Chicago be >87° on Jul 29, 2026?",
    "station": "KMDW",
    "station_city": "Chicago",
    "type": "daily_high",
    "resolution_date": "2026-07-29",
    "closes_at": "2026-07-30T05:59:00.000Z",
    "status": "open",
    "venue_url": "https://kalshi.com/markets/kxhighchi",
    "obs": {
      "temp_f": 69.5,
      "at": "2026-07-30T02:00:00.000Z",
      "trend_f_hr": -4.1,
      "source": "open-meteo"
    },
    "forecast": {
      "high_f": 78.3,
      "sigma_f": 1.1,
      "updated_at": "2026-07-30T01:30:00.000Z",
      "peak_local": "3:15 PM",
      "components": {
        "model_consensus_f": 79.2,
        "obs_bias_f": 0,
        "balloon_nudge_f": -0.86
      }
    },
    "consensus": {
      "open_meteo": 79.1,
      "ecmwf": 78.8,
      "gfs": 79.1,
      "icon": 79.9
    },
    "selected_forecast": {
      "source": "open_meteo",
      "label": "Open-Meteo",
      "high_f": 79.1,
      "sigma_f": 1.5
    },
    "market_implied_f": 80.7,
    "gap_f": -1.6,
    "edge": {
      "bucket": "80–81°",
      "side": "no",
      "price_c": 1,
      "fair_c": 66,
      "edge_c": 65,
      "ev_pct": 6500,
      "kelly_quarter_pct": 16.4
    },
    "volume_usd": 0,
    "open_interest_usd": 333550,
    "spread_c": null,
    "liquidity_grade": "—",
    "sonde_obs_age_s": 2280,
    "simulated": {
      "balloon_network": true,
      "market_book": false
    },
    "ladder": [
      {
        "bucket": "≤79°",
        "low_f": null,
        "high_f": 79,
        "price_c": 1,
        "bid_c": null,
        "ask_c": 1,
        "selected_forecast_source": "open_meteo",
        "selected_prob": 0.6051,
        "selected_fair_c": 61,
        "selected_edge_c": 60,
        "sonde_prob": 0.8623,
        "fair_c": 86,
        "edge_c": 85,
        "market_prob": 0.0096,
        "volume_usd": 0,
        "open_interest_usd": 175729
      },
      {
        "bucket": "80–81°",
        "low_f": 80,
        "high_f": 81,
        "price_c": 99,
        "bid_c": 99,
        "ask_c": null,
        "selected_forecast_source": "open_meteo",
        "selected_prob": 0.3401,
        "selected_fair_c": 34,
        "selected_edge_c": -65,
        "sonde_prob": 0.1358,
        "fair_c": 14,
        "edge_c": -85,
        "market_prob": 0.9519,
        "volume_usd": 0,
        "open_interest_usd": 18487
      },
      {
        "bucket": "82–83°",
        "low_f": 82,
        "high_f": 83,
        "price_c": 1,
        "bid_c": null,
        "ask_c": 1,
        "selected_forecast_source": "open_meteo",
        "selected_prob": 0.0531,
        "selected_fair_c": 5,
        "selected_edge_c": 4,
        "sonde_prob": 0.0018,
        "fair_c": 0,
        "edge_c": -1,
        "market_prob": 0.0096,
        "volume_usd": 0,
        "open_interest_usd": 31059
      },
      {
        "bucket": "84–85°",
        "low_f": 84,
        "high_f": 85,
        "price_c": 1,
        "bid_c": null,
        "ask_c": 1,
        "selected_forecast_source": "open_meteo",
        "selected_prob": 0.0017,
        "selected_fair_c": 0,
        "selected_edge_c": -1,
        "sonde_prob": 0,
        "fair_c": 0,
        "edge_c": -1,
        "market_prob": 0.0096,
        "volume_usd": 0,
        "open_interest_usd": 28467
      },
      {
        "bucket": "86–87°",
        "low_f": 86,
        "high_f": 87,
        "price_c": 1,
        "bid_c": null,
        "ask_c": 1,
        "selected_forecast_source": "open_meteo",
        "selected_prob": 0,
        "selected_fair_c": 0,
        "selected_edge_c": -1,
        "sonde_prob": 0,
        "fair_c": 0,
        "edge_c": -1,
        "market_prob": 0.0096,
        "volume_usd": 0,
        "open_interest_usd": 35771
      },
      {
        "bucket": "≥88°",
        "low_f": 88,
        "high_f": null,
        "price_c": 1,
        "bid_c": null,
        "ask_c": 1,
        "selected_forecast_source": "open_meteo",
        "selected_prob": 0,
        "selected_fair_c": 0,
        "selected_edge_c": -1,
        "sonde_prob": 0,
        "fair_c": 0,
        "edge_c": -1,
        "market_prob": 0.0096,
        "volume_usd": 0,
        "open_interest_usd": 44037
      }
    ],
    "hourly": {
      "sonde": {
        "0": 64.3,
        "1": 63.8,
        "2": 63.5,
        "3": 63.3,
        "4": 62.5,
        "5": 61.7,
        "6": 61.2,
        "7": 63.8,
        "8": 67.7,
        "9": 70.2,
        "10": 72,
        "11": 73.4,
        "12": 74.6,
        "13": 77.1,
        "14": 77.7,
        "15": 78.3,
        "16": 78.1,
        "17": 77.8,
        "18": 77.7,
        "19": 76.9,
        "20": 72.6,
        "21": 68.7,
        "22": 67.4,
        "23": 66.5
      },
      "observed": {
        "0": 65.1,
        "1": 64.6,
        "2": 64.3,
        "3": 64.1,
        "4": 63.3,
        "5": 62.5,
        "6": 62,
        "7": 64.6,
        "8": 68.5,
        "9": 71,
        "10": 72.8,
        "11": 74.2,
        "12": 75.4,
        "13": 77.9,
        "14": 78.5,
        "15": 79.1,
        "16": 78.9,
        "17": 78.6,
        "18": 78.5,
        "19": 77.7,
        "20": 73.4,
        "21": 69.5,
        "22": 68.2,
        "23": 67.3
      },
      "open_meteo": {
        "0": 65.1,
        "1": 64.6,
        "2": 64.3,
        "3": 64.1,
        "4": 63.3,
        "5": 62.5,
        "6": 62,
        "7": 64.6,
        "8": 68.5,
        "9": 71,
        "10": 72.8,
        "11": 74.2,
        "12": 75.4,
        "13": 77.9,
        "14": 78.5,
        "15": 79.1,
        "16": 78.9,
        "17": 78.6,
        "18": 78.5,
        "19": 77.7,
        "20": 73.4,
        "21": 69.5,
        "22": 68.2,
        "23": 67.3
      }
    },
    "sounding": {
      "unit": "SONDE-3",
      "station": "KMDW",
      "launched_at": "2026-07-30T01:30:00.000Z",
      "next_launch_at": "2026-07-30T02:30:00.000Z",
      "distance_mi": 3.9,
      "bearing": "SW",
      "profile_age_min": 38,
      "cycle": "hourly",
      "surface": {
        "temp_f": 70.3,
        "feels_like_f": 72,
        "dewpoint_f": 58,
        "humidity_pct": 70,
        "wind_mph": 6,
        "wind_dir": "NE",
        "sky": "Clear",
        "pressure_inhg": 29.35,
        "pressure_trend": "steady",
        "today_range": "62.8–79.9°",
        "feed": "2-s telemetry"
      },
      "delta_vs_station_f": 0.8,
      "levels_summary": {
        "t_925mb_c": 16.4,
        "mixed_layer_depth_km": 0.1,
        "lapse_0_1km_c_km": 8.6,
        "low_level_rh_pct": 69
      },
      "delta_vs_open_meteo": {
        "t_925mb_c": 0.6,
        "mixed_layer_depth_km": 0.2
      },
      "fresher_than_open_meteo_h": 14.1,
      "simulated": true
    }
  }
}