diff --git a/we.go b/we.go
index 05b6e52..fe823b8 100644
--- a/we.go
+++ b/we.go
@@ -534,6 +534,9 @@ func main() {
 		fmt.Fprintln(stdout, val)
 	}
 
+	if numdays == 0 {
+		return
+	}
 	if r.Data.Weather == nil {
 		log.Fatal("No detailed weather forecast available.")
 	}