diff --git a/NEWS.md b/NEWS.md
index d476e0d..768594d 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -10,6 +10,9 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ### Added
 
+- Add close button to alert dialogs
+  [#99](https://github.com/orontee/taranis/issues/99)
+
 - Add icons to sunrise and sunset lines
   [#95](https://github.com/orontee/taranis/issues/95)
 
diff --git a/src/alerts.cc b/src/alerts.cc
index 4a0cffe..1950ff2 100644
--- a/src/alerts.cc
+++ b/src/alerts.cc
@@ -15,8 +15,9 @@ namespace taranis {
 void AlertsButton::on_clicked() { this->viewer->open(); }
 
 AlertViewer::AlertViewer(std::shared_ptr<Model> model,
+                         std::shared_ptr<Icons> icons,
                          std::shared_ptr<Fonts> fonts)
-    : ModalWidget{}, model{model}, fonts{fonts},
+    : ModalWidget{}, model{model}, icons{icons}, fonts{fonts},
       content_width{this->bounding_box.w - 2 * AlertViewer::horizontal_padding},
       title_height{2 * this->fonts->get_small_font()->height},
       alert_title_start_y{this->title_height + AlertViewer::vertical_padding} {}
@@ -61,6 +62,20 @@ void AlertViewer::do_paint() {
                this->content_width, this->title_height,
                this->title_text.c_str(), ALIGN_CENTER);
 
+  if (!this->close_button) {
+    const auto close_button_icon_size =
+        default_font->height + AlertViewer::vertical_padding;
+
+    this->close_button =
+        std::make_shared<CloseButton>(close_button_icon_size, this->icons);
+    this->close_button->set_click_handler(std::bind(&AlertViewer::hide, this));
+    this->close_button->set_pos_x(this->get_width() - close_button_icon_size -
+                                  AlertViewer::horizontal_padding);
+    this->close_button->set_pos_y(this->get_pos_y() +
+                                  AlertViewer::vertical_padding / 4);
+  }
+  this->close_button->do_paint();
+
   DrawHorizontalSeparator(0, this->title_height, ScreenWidth(),
                           HORIZONTAL_SEPARATOR_SOLID);
 
@@ -210,6 +225,12 @@ int AlertViewer::handle_pointer_event(int event_type, int pointer_pos_x,
       return 1;
     }
   }
+  if (this->close_button and
+      this->close_button->is_in_bouding_box(pointer_pos_x, pointer_pos_y) and
+      this->close_button->is_enabled()) {
+    return this->close_button->handle_pointer_event(event_type, pointer_pos_x,
+                                                    pointer_pos_y);
+  }
   return 0;
 }
 
diff --git a/src/alerts.h b/src/alerts.h
index 7c9f8cc..569b101 100644
--- a/src/alerts.h
+++ b/src/alerts.h
@@ -5,6 +5,7 @@
 #include <vector>
 
 #include "button.h"
+#include "closebutton.h"
 #include "fonts.h"
 #include "icons.h"
 #include "model.h"
@@ -35,7 +36,8 @@ class AlertsButton : public Button {
 
 class AlertViewer : public ModalWidget {
 public:
-  AlertViewer(std::shared_ptr<Model> model, std::shared_ptr<Fonts> fonts);
+  AlertViewer(std::shared_ptr<Model> model, std::shared_ptr<Icons> icons,
+              std::shared_ptr<Fonts> fonts);
 
   void open();
 
@@ -53,8 +55,11 @@ class AlertViewer : public ModalWidget {
   static constexpr int vertical_padding{25};
 
   std::shared_ptr<Model> model;
+  std::shared_ptr<Icons> icons;
   std::shared_ptr<Fonts> fonts;
 
+  std::shared_ptr<CloseButton> close_button;
+
   size_t alert_index{0};
 
   const int content_width;
diff --git a/src/ui.cc b/src/ui.cc
index 182ce0c..2efd844 100644
--- a/src/ui.cc
+++ b/src/ui.cc
@@ -31,7 +31,8 @@ Ui::Ui(std::shared_ptr<Config> config, std::shared_ptr<Model> model)
   menu_button->set_pos_y(Ui::button_margin);
   menu_button->set_menu_handler(&handle_menu_item_selected);
 
-  this->alert_viewer = std::make_shared<AlertViewer>(model, this->fonts);
+  this->alert_viewer =
+      std::make_shared<AlertViewer>(model, this->icons, this->fonts);
   this->daily_forecast_viewer =
       std::make_shared<DailyForecastViewer>(model, this->icons, this->fonts);