diff --git a/src/main/java/org/withtime/be/withtimebe/domain/weather/dto/request/WeatherReqDTO.java b/src/main/java/org/withtime/be/withtimebe/domain/weather/dto/request/WeatherReqDTO.java
index 3322f30..413f8d0 100644
--- a/src/main/java/org/withtime/be/withtimebe/domain/weather/dto/request/WeatherReqDTO.java
+++ b/src/main/java/org/withtime/be/withtimebe/domain/weather/dto/request/WeatherReqDTO.java
@@ -2,6 +2,8 @@
 
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Positive;
+import org.withtime.be.withtimebe.global.error.code.WeatherErrorCode;
+import org.withtime.be.withtimebe.global.error.exception.WeatherException;
 
 import java.time.LocalDate;
 
@@ -26,8 +28,7 @@ public static GetWeeklyRecommendation of(Long regionId, LocalDate startDate) {
                 LocalDate maxDate = now.plusDays(7);
 
                 if (startDate.isBefore(minDate) || startDate.isAfter(maxDate)) {
-                    throw new IllegalArgumentException(
-                            "조회 가능한 시작 날짜 범위를 벗어났습니다. (7일 전 ~ 7일 후)");
+                    throw new WeatherException(WeatherErrorCode.INVALID_DATE_RANGE);
                 }
             }
 
@@ -57,8 +58,7 @@ public static GetWeeklyPrecipitation of(Long regionId, LocalDate startDate) {
                 LocalDate maxDate = now.plusDays(10);
 
                 if (startDate.isBefore(minDate) || startDate.isAfter(maxDate)) {
-                    throw new IllegalArgumentException(
-                            "조회 가능한 시작 날짜 범위를 벗어났습니다. (7일 전 ~ 10일 후)");
+                    throw new WeatherException(WeatherErrorCode.INVALID_DATE_RANGE);
                 }
             }
 
diff --git a/src/main/java/org/withtime/be/withtimebe/domain/weather/service/command/WeatherTriggerServiceImpl.java b/src/main/java/org/withtime/be/withtimebe/domain/weather/service/command/WeatherTriggerServiceImpl.java
index a381a0d..f80a61b 100644
--- a/src/main/java/org/withtime/be/withtimebe/domain/weather/service/command/WeatherTriggerServiceImpl.java
+++ b/src/main/java/org/withtime/be/withtimebe/domain/weather/service/command/WeatherTriggerServiceImpl.java
@@ -9,6 +9,8 @@
 import org.withtime.be.withtimebe.domain.weather.data.utils.WeatherDataHelper;
 import org.withtime.be.withtimebe.domain.weather.dto.request.WeatherSyncReqDTO;
 import org.withtime.be.withtimebe.domain.weather.dto.response.WeatherSyncResDTO;
+import org.withtime.be.withtimebe.global.error.code.WeatherErrorCode;
+import org.withtime.be.withtimebe.global.error.exception.WeatherException;
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
@@ -109,7 +111,7 @@ private Object executeJob(WeatherSyncReqDTO.ManualTrigger request) {
                         .build();
             }
 
-            default -> throw new IllegalArgumentException("지원하지 않는 작업 타입: " + request.jobType());
+            default -> throw new WeatherException(WeatherErrorCode.UNSUPPORTED_TASK_TYPE);
         };
     }
 }
diff --git a/src/main/java/org/withtime/be/withtimebe/global/error/code/WeatherErrorCode.java b/src/main/java/org/withtime/be/withtimebe/global/error/code/WeatherErrorCode.java
index 9e766b9..392cd28 100644
--- a/src/main/java/org/withtime/be/withtimebe/global/error/code/WeatherErrorCode.java
+++ b/src/main/java/org/withtime/be/withtimebe/global/error/code/WeatherErrorCode.java
@@ -21,10 +21,11 @@ public enum WeatherErrorCode implements BaseErrorCode {
     REGION_ALREADY_EXISTS(HttpStatus.BAD_REQUEST, "WEATHER400_0", "이미 존재하는 지역입니다."),
     WEATHER_TEMPLATE_ALREADY_EXISTS(HttpStatus.BAD_REQUEST, "WEATHER400_1", "이미 존재하는 날씨 템플릿입니다."),
     INVALID_COORDINATES(HttpStatus.BAD_REQUEST, "WEATHER400_2", "올바르지 않은 좌표입니다."),
-    INVALID_DATE_RANGE(HttpStatus.BAD_REQUEST, "WEATHER400_3", "올바르지 않은 날짜 범위입니다."),
+    INVALID_DATE_RANGE(HttpStatus.BAD_REQUEST, "WEATHER400_3", "올바르지 않은 날짜 범위입니다. 조회 가능한 시작 날짜 범위를 벗어났습니다. (7일 전 ~ 7일 후)"),
     INVALID_WEATHER_DATA(HttpStatus.BAD_REQUEST, "WEATHER400_4", "올바르지 않은 날씨 데이터입니다."),
     INVALID_REGION_CODE(HttpStatus.BAD_REQUEST, "WEATHER400_5", "올바르지 않은 지역코드입니다."),
     INVALID_ENUM_VALUE(HttpStatus.BAD_REQUEST, "WEATHER400_6", "올바르지 않은 열거형 값입니다."),
+    UNSUPPORTED_TASK_TYPE(HttpStatus.BAD_REQUEST, "WEATHER400_7", "지원하지 않는 작업 타입입니다."),
 
     // ==== 권한/인증 에러 (403) ====
     ACCESS_DENIED(HttpStatus.FORBIDDEN, "WEATHER403_0", "접근 권한이 없습니다."),