Updated model and normalizers to map provider “feels like” fields into a single ApparentTemperatureC field.

internal/model/forecast.go

@@ -103,8 +103,6 @@ type WeatherForecastPeriod struct {
 	BarometricPressurePa    *float64 `json:"barometricPressurePa,omitempty"`
 	VisibilityMeters        *float64 `json:"visibilityMeters,omitempty"`
 	ApparentTemperatureC    *float64 `json:"apparentTemperatureC,omitempty"`
-	WindChillC              *float64 `json:"windChillC,omitempty"`
-	HeatIndexC              *float64 `json:"heatIndexC,omitempty"`
 	CloudCoverPercent       *float64 `json:"cloudCoverPercent,omitempty"`
 
 	// Precipitation (forecast-specific). Keep these generic and provider-independent.

internal/model/observation.go

@@ -36,8 +36,7 @@ type WeatherObservation struct {
 	VisibilityMeters     *float64 `json:"visibilityMeters,omitempty"`
 
 	RelativeHumidityPercent *float64 `json:"relativeHumidityPercent,omitempty"`
-	WindChillC              *float64 `json:"windChillC,omitempty"`
-	HeatIndexC              *float64 `json:"heatIndexC,omitempty"`
+	ApparentTemperatureC    *float64 `json:"apparentTemperatureC,omitempty"`
 
 	ElevationMeters *float64 `json:"elevationMeters,omitempty"`
 	RawMessage      string   `json:"rawMessage,omitempty"`

internal/normalizers/nws/observation.go

@@ -80,6 +80,14 @@ func buildObservation(parsed nwsObservationResponse) (model.WeatherObservation,
 	// NWS observation responses typically do not include a day/night flag -> nil.
 	canonicalText := standards.WMOText(wmo, nil)
 
+	// Apparent temperature: prefer wind chill when both are supplied.
+	var apparentC *float64
+	if parsed.Properties.WindChill.Value != nil {
+		apparentC = parsed.Properties.WindChill.Value
+	} else if parsed.Properties.HeatIndex.Value != nil {
+		apparentC = parsed.Properties.HeatIndex.Value
+	}
+
 	obs := model.WeatherObservation{
 		StationID:   parsed.Properties.StationID,
 		StationName: parsed.Properties.StationName,
@@ -108,8 +116,7 @@ func buildObservation(parsed nwsObservationResponse) (model.WeatherObservation,
 		VisibilityMeters:     parsed.Properties.Visibility.Value,
 
 		RelativeHumidityPercent: parsed.Properties.RelativeHumidity.Value,
-		WindChillC:              parsed.Properties.WindChill.Value,
-		HeatIndexC:              parsed.Properties.HeatIndex.Value,
+		ApparentTemperatureC:    apparentC,
 
 		ElevationMeters: parsed.Properties.Elevation.Value,
 		RawMessage:      parsed.Properties.RawMessage,

internal/normalizers/openmeteo/forecast.go

@@ -25,7 +25,7 @@ import (
 //     Event.EmittedAt when present, otherwise the first hourly time.
 //   - Hourly payloads are array-oriented; missing fields are treated as nil per-period.
 //   - Snowfall is provided in centimeters and is converted to millimeters.
-//   - apparent_temperature is ignored (no canonical "feels like" field).
+//   - apparent_temperature is mapped to ApparentTemperatureC when present.
 type ForecastNormalizer struct{}
 
 func (ForecastNormalizer) Match(e event.Event) bool {
@@ -121,6 +121,9 @@ func buildForecast(parsed omForecastResponse, fallbackIssued time.Time) (model.W
 		if v := floatAt(parsed.Hourly.Temperature2m, i); v != nil {
 			period.TemperatureC = v
 		}
+		if v := floatAt(parsed.Hourly.ApparentTemp, i); v != nil {
+			period.ApparentTemperatureC = v
+		}
 		if v := floatAt(parsed.Hourly.DewPoint2m, i); v != nil {
 			period.DewpointC = v
 		}

internal/normalizers/openmeteo/observation.go

@@ -107,6 +107,10 @@ func buildObservation(parsed omResponse) (model.WeatherObservation, time.Time, e
 		v := *parsed.Current.Temperature2m
 		obs.TemperatureC = &v
 	}
+	if parsed.Current.ApparentTemperature != nil {
+		v := *parsed.Current.ApparentTemperature
+		obs.ApparentTemperatureC = &v
+	}
 
 	if parsed.Current.RelativeHumidity2m != nil {
 		v := *parsed.Current.RelativeHumidity2m

internal/normalizers/openmeteo/types.go

@@ -19,6 +19,7 @@ type omCurrent struct {
 	Time string `json:"time"` // e.g. "2026-01-10T12:30" (often no timezone suffix)
 
 	Temperature2m       *float64 `json:"temperature_2m"`
+	ApparentTemperature *float64 `json:"apparent_temperature"`
 	RelativeHumidity2m  *float64 `json:"relative_humidity_2m"`
 	WeatherCode         *int     `json:"weather_code"`
 

internal/normalizers/openweather/observation.go

@@ -68,6 +68,11 @@ func buildObservation(parsed owmResponse) (model.WeatherObservation, time.Time,
 	//  - wind speed is m/s -> km/h conversion
 	tempC := parsed.Main.Temp
 	rh := parsed.Main.Humidity
+	var apparentC *float64
+	if parsed.Main.FeelsLike != nil {
+		v := *parsed.Main.FeelsLike
+		apparentC = &v
+	}
 
 	surfacePa := normcommon.PressurePaFromHPa(parsed.Main.Pressure)
 	var seaLevelPa *float64
@@ -117,6 +122,7 @@ func buildObservation(parsed owmResponse) (model.WeatherObservation, time.Time,
 		IconURL:         iconURL,
 
 		TemperatureC: &tempC,
+		ApparentTemperatureC: apparentC,
 
 		WindDirectionDegrees: parsed.Wind.Deg,
 		WindSpeedKmh:         &wsKmh,

internal/normalizers/openweather/types.go

@@ -16,6 +16,7 @@ type owmResponse struct {
 
 	Main struct {
 		Temp      float64  `json:"temp"`       // °C when units=metric (enforced by source)
+		FeelsLike *float64 `json:"feels_like"` // °C when units=metric (enforced by source)
 		Pressure  float64  `json:"pressure"`   // hPa
 		Humidity  float64  `json:"humidity"`   // %
 		SeaLevel  *float64 `json:"sea_level"`