diff --git a/src/free_api_v25/current/main.rs b/src/free_api_v25/current/main.rs
new file mode 100644
index 0000000..2eb1542
--- /dev/null
+++ b/src/free_api_v25/current/main.rs
@@ -0,0 +1,58 @@
+use serde::{Deserialize, Serialize};
+
+/// Main weather parameters including temperature, pressure, and humidity
+///
+/// All temperature values are in the units specified in the API request
+/// (Kelvin, Celsius, or Fahrenheit).
+#[derive(Debug, Clone, Deserialize, Serialize, Default, PartialEq)]
+pub struct Main {
+    /// Temperature in requested units (Kelvin, Celsius, or Fahrenheit)
+    #[serde(default)]
+    pub temp: Option<f32>,
+    /// "Feels like" temperature, accounting for human perception of weather
+    #[serde(default)]
+    pub feels_like: Option<f32>,
+    /// Minimum observed temperature (within large urban areas)
+    #[serde(default)]
+    pub temp_min: Option<f32>,
+    /// Maximum observed temperature (within large urban areas)
+    #[serde(default)]
+    pub temp_max: Option<f32>,
+    /// Atmospheric pressure at sea level (hPa)
+    #[serde(default)]
+    pub pressure: Option<u32>,
+    /// Humidity percentage (0-100)
+    #[serde(default)]
+    pub humidity: Option<u8>,
+    /// Atmospheric pressure at sea level (hPa)
+    #[serde(default)]
+    pub sea_level: Option<u32>,
+    /// Atmospheric pressure at ground level (hPa)
+    #[serde(default)]
+    pub grnd_level: Option<u32>,
+}
+
+impl Main {
+    /// Returns the temperature difference between max and min
+    ///
+    /// # Example
+    /// ```
+    /// use owm_api25::current::Main;
+    ///
+    /// let main = Main {
+    ///     temp: Some(20.0),
+    ///     temp_min: Some(15.0),
+    ///     temp_max: Some(25.0),
+    ///     ..Default::default()
+    /// };
+    ///
+    /// assert_eq!(main.temp_range(), Some(10.0));
+    /// ```
+    #[must_use]
+    pub fn temp_range(&self) -> Option<f32> {
+        match (self.temp_min, self.temp_max) {
+            (Some(min), Some(max)) => Some(max - min),
+            _ => None,
+        }
+    }
+}
diff --git a/src/free_api_v25/current/mod.rs b/src/free_api_v25/current/mod.rs
index b4cf5f4..826f92b 100644
--- a/src/free_api_v25/current/mod.rs
+++ b/src/free_api_v25/current/mod.rs
@@ -18,4 +18,5 @@
 //! - [`query`](crate::query) for building request URLs
 
 pub mod coord;
+pub mod main;
 pub mod weather;