diff --git a/pkgs/development/python-modules/metar/default.nix b/pkgs/development/python-modules/metar/default.nix
new file mode 100644
index 00000000000..e832c7cf56f
--- /dev/null
+++ b/pkgs/development/python-modules/metar/default.nix
@@ -0,0 +1,28 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "metar";
+  version = "1.8.0";
+
+  src = fetchFromGitHub {
+    owner = "python-metar";
+    repo = "python-metar";
+    rev = "v${version}";
+    sha256 = "019vfq9191cdvvq1afdcdgdgbzpj7wq6pz9li8ggim71azjnv5nn";
+  };
+
+  checkInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "metar" ];
+
+  meta = with lib; {
+    description = "Python parser for coded METAR weather reports";
+    homepage = "https://github.com/python-metar/python-metar";
+    license = with licenses; [ bsd1 ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/development/python-modules/pynws/default.nix b/pkgs/development/python-modules/pynws/default.nix
new file mode 100644
index 00000000000..abe4c93b818
--- /dev/null
+++ b/pkgs/development/python-modules/pynws/default.nix
@@ -0,0 +1,47 @@
+{ lib
+, aiohttp
+, buildPythonPackage
+, fetchFromGitHub
+, freezegun
+, metar
+, pytest-aiohttp
+, pytest-asyncio
+, pytest-cov
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "pynws";
+  version = "1.3.0";
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "MatthewFlamm";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "13ipmx60kicwh8qxjazap4vk94x8i3r0lnkdsap7gffaizwgp49d";
+  };
+
+  propagatedBuildInputs = [
+    aiohttp
+    metar
+  ];
+
+  checkInputs = [
+    freezegun
+    pytest-aiohttp
+    pytest-asyncio
+    pytest-cov
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "pynws" ];
+
+  meta = with lib; {
+    description = "Python library to retrieve data from NWS/NOAA";
+    homepage = "https://github.com/MatthewFlamm/pynws";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index c1bd7555260..453762a02fe 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -565,7 +565,7 @@
     "numato" = ps: with ps; [ ]; # missing inputs: numato-gpio
     "number" = ps: with ps; [ ];
     "nut" = ps: with ps; [ ]; # missing inputs: pynut2
-    "nws" = ps: with ps; [ ]; # missing inputs: pynws
+    "nws" = ps: with ps; [ pynws ];
     "nx584" = ps: with ps; [ ]; # missing inputs: pynx584
     "nzbget" = ps: with ps; [ ]; # missing inputs: pynzbgetapi
     "oasa_telematics" = ps: with ps; [ ]; # missing inputs: oasatelematics
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9980bed45e9..8478da2690f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4038,6 +4038,8 @@ in {
 
   metaphone = callPackage ../development/python-modules/metaphone { };
 
+  metar = callPackage ../development/python-modules/metar { };
+
   mezzanine = callPackage ../development/python-modules/mezzanine { };
 
   micawber = callPackage ../development/python-modules/micawber { };
@@ -4918,6 +4920,8 @@ in {
 
   pynuki = callPackage ../development/python-modules/pynuki { };
 
+  pynws = callPackage ../development/python-modules/pynws { };
+
   pysbd = callPackage ../development/python-modules/pysbd { };
 
   pyshark = callPackage ../development/python-modules/pyshark { };