diff --git a/home/gui/files/sway/weather.conf b/home/gui/files/sway/weather.conf
new file mode 100644
index 0000000..22b0dd0
--- /dev/null
+++ b/home/gui/files/sway/weather.conf
@@ -0,0 +1,4 @@
+lat=29.749
+lon=-95.773
+units=imperial
+appid=0ea01c37da47559728248e3be2872b20
diff --git a/home/gui/files/sway/weather.py b/home/gui/files/sway/weather.py
new file mode 100755
index 0000000..e4fc3b0
--- /dev/null
+++ b/home/gui/files/sway/weather.py
@@ -0,0 +1,329 @@
+#!/usr/bin/env python3
+
+import re
+import os
+import sys
+import subprocess
+import json
+import urllib.request
+import datetime
+import math
+import random
+
+def decode_icon(code, is_day):
+    icons = {
+        "sun": "  ",
+        "moon": "  ",
+        "cloud": "",
+        "cloud-bolt": "",
+        "snowflake": "  ",
+        "wind": "",
+        "tornado": "",
+        "temperature-low": "",
+        "temperature-high": "",
+        "smog": "",
+        "cloud-sun-rain": "",
+        "cloud-sun": "",
+        "cloud-showers-water": "",
+        "cloud-showers-heavy": "",
+        "cloud-rain": "",
+        "cloud-moon-rain": "",
+        "cloud-moon": " ",
+        "default": "  "
+    }
+    match code:
+        case 200:
+            icon_status = "cloud-bolt"
+        case 201:
+            icon_status = "cloud-bolt"
+        case 202:
+            icon_status = "cloud-bolt"
+        case 210:
+            icon_status = "cloud-bolt"
+        case 211:
+            icon_status = "cloud-bolt"
+        case 212:
+            icon_status = "cloud-bolt"
+        case 221:
+            icon_status = "cloud-bolt"
+        case 230:
+            icon_status = "cloud-bolt"
+        case 231:
+            icon_status = "cloud-bolt"
+        case 232:
+            icon_status = "cloud-bolt"
+        case 500:
+            icon_status = "cloud-sun-rain" if is_day else "cloud-moon-rain"
+        case 501:
+            icon_status = "cloud-sun-rain" if is_day else "cloud-moon-rain"
+        case 502:
+            icon_status = "cloud-sun-rain" if is_day else "cloud-moon-rain"
+        case 503:
+            icon_status = "cloud-sun-rain" if is_day else "cloud-moon-rain"
+        case 504:
+            icon_status = "cloud-sun-rain" if is_day else "cloud-moon-rain"
+        case 511:
+            icon_status = "snowflake"
+        case 520:
+            icon_status = "cloud-rain"
+        case 521:
+            icon_status = "cloud-rain"
+        case 522:
+            icon_status = "cloud-showers-heavy"
+        case 531:
+            icon_status = "cloud-rain"
+        case 600:
+            icon_status = "snowflake"
+        case 601:
+            icon_status = "snowflake"
+        case 602:
+            icon_status = "snowflake"
+        case 611:
+            icon_status = "snowflake"
+        case 612:
+            icon_status = "snowflake"
+        case 613:
+            icon_status = "snowflake"
+        case 615:
+            icon_status = "snowflake"
+        case 616:
+            icon_status = "snowflake"
+        case 620:
+            icon_status = "snowflake"
+        case 621:
+            icon_status = "snowflake"
+        case 622:
+            icon_status = "snowflake"
+        case 800:
+            icon_status = "sun" if is_day else "moon"
+        case 801:
+            icon_status = "cloud-sun" if is_day else "cloud-moon"
+        case 802:
+            icon_status = "cloud"
+        case 803:
+            icon_status = "cloud"
+        case 804:
+            icon_status = "cloud"
+        case 10001:
+            icon_status = "temperature-low"
+        case 10002:
+            icon_status = "temperature-high"
+        case _:
+            icon_status = "default"
+    icon = (
+        icons[icon_status]
+        if icon_status in icons
+        else icons["default"]
+    )
+    return icon
+
+def is_daytime(dt, resp):
+    events = []
+    for day in range(8):
+        events.append(resp['daily'][day]['sunrise'])
+        events.append(resp['daily'][day]['sunset'])
+    events.append(dt)
+    events.sort()
+    return events.index(dt) % 2 == 1
+
+def format_temp(temp):
+    rounded_temp = round(temp)
+    return f"{rounded_temp: >3}°"
+
+def render_minutely_precip_chart(resp):
+    chart = ""
+    icons = [" ", "▁", "▂", "▃", "▄", "▅", "▆", "▇", "█"]
+    for minute in range(60):
+        precip = resp['minutely'][minute]['precipitation']
+        precip = math.ceil(precip)
+        precip = 8 if precip > 8 else precip
+#        precip = random.randint(0, 8)
+        chart = chart + icons[precip]
+    return chart
+
+def format_precip_chart_string(chart, resp):
+    total_precip = 0
+    for minute in range(60):
+        total_precip = total_precip + resp['minutely'][minute]['precipitation']
+#    total_precip = 1
+    if total_precip == 0:
+        return ""
+    else:
+        first_minute = resp['minutely'][minute]['dt']
+        first_minute = datetime.datetime.fromtimestamp(first_minute).minute
+        
+        seq = ["15", "30", "45", " 0"]
+
+        first_target = seq[int(first_minute / 15)]
+        init_spaces = int(first_target) - first_minute
+        timelabel = " "
+        for i in range(init_spaces):
+            timelabel = timelabel + " "
+        for i in range(4):
+            timelabel = timelabel + seq[(int(first_minute / 15) + i) % 4]
+            if i < 3:
+                timelabel = timelabel + "             "
+
+        chart_string = f"<span font_family=\"Fantasque Sans Mono\">  {chart}  </span>\n"
+        chart_string = chart_string + f"<span font_family=\"Fantasque Sans Mono\">{timelabel}</span>\n\n"
+        return chart_string
+
+def get_hourly_hours(hours, resp):
+    hour_string = ""
+    for hour in range(hours):
+        dt = resp['hourly'][hour]['dt']
+        dt = datetime.datetime.fromtimestamp(dt).hour
+        hour_string = hour_string + " " + f"{dt:2}" + " "
+    return hour_string
+
+def get_hourly_icons(hours, resp):
+    icon_string = ""
+    for hour in range(hours):
+        status_code = resp['hourly'][hour]['weather'][0]['id']
+        dt = resp['hourly'][hour]['dt']
+        hour_is_daytime = is_daytime(dt, resp)
+        icon_string = icon_string + " " + decode_icon(status_code, hour_is_daytime) + " "
+    return icon_string
+
+def get_hourly_temps(hours, resp):
+    temp_string = ""
+    for hour in range(hours):
+        temp_string = temp_string + format_temp(resp['hourly'][hour]['temp'])
+    return temp_string
+
+def compute_daily_minmax(days, resp):
+    dmin = 100
+    dmax = -100
+    for day in range(days):
+        day_min = resp['daily'][day]['temp']['min']
+        day_max = resp['daily'][day]['temp']['max']
+        if day_min < dmin: dmin = day_min
+        if day_max > dmax: dmax = day_max
+    return dmin, dmax
+
+def format_percentage(num):
+    num = str(int(100 * num))
+    for i in range(3 - len(num)):
+        num = " " + num
+    num = num + "%"
+    return num
+
+def get_daily(days, resp, dlow, dhigh):
+    delta = dhigh - dlow
+    steps = 20
+    incr = delta / steps
+
+    if days == 0:
+        return ""
+    daily_string = "\n"
+    for day in range(days):
+        dt = resp['daily'][day]['dt']
+        dt = datetime.datetime.fromtimestamp(dt)
+        dt = dt.strftime('%a %b %e')
+        code = resp['daily'][day]['weather'][0]['id']
+        icon = decode_icon(code, True)
+        day_min = resp['daily'][day]['temp']['min']
+        day_max = resp['daily'][day]['temp']['max']
+        lt = format_temp(day_min)
+        ht = format_temp(day_max)
+        pop = format_percentage(resp['daily'][day]['pop'])
+        daily_string = daily_string + "\n<span font_family=\"Fantasque Sans Mono\" size=\"large\">" + dt \
+            + "  " + icon + "  " + pop + " " + lt + " "
+        day_tempc_startc = int((day_min - dlow) / incr)
+        day_tempc_stopc = int((day_max - dlow) / incr)
+
+        for character in range(steps):
+            if character < day_tempc_startc:
+                daily_string = daily_string + " "
+            elif character > day_tempc_stopc:
+                daily_string = daily_string + " "
+            else:
+                daily_string = daily_string + "─"            
+        
+        daily_string = daily_string + ht + "</span>"
+    return daily_string
+
+def validate_latitude(lat):
+    try:
+        lat = float(lat)
+        return -90 <= lat <= 90
+    except ValueError:
+        return False
+
+def validate_longitude(lon):
+    try:
+        lon = float(lon)
+        return -180 <= lon <= 180
+    except ValueError:
+        return False
+
+def validate_units(units):
+    valid_units = ['metric', 'standard', 'imperial']
+    return units.lower() in valid_units
+
+URL = "https://api.openweathermap.org/data/3.0/onecall?"
+
+try:
+    config_file = os.path.expanduser("~/.config/waybar/weather.conf")
+    with open(config_file, "r") as file:
+        for line in file:
+            key, value = line.strip().replace(" ", "").split("=")
+            if key == "lat":
+                if not validate_latitude(value):
+                    print("Error: Invalid latitude")
+                    sys.exit(1)
+            elif key == "lon":
+                if not validate_longitude(value):
+                    print("Error: Invalid longitude")
+                    sys.exit(1)
+            elif key == "units":
+                if not validate_units(value):
+                    print("Error: Invalid units")
+                    sys.exit(1)
+            elif key == "appid":
+                pass
+            else:
+                print("Error: Unknown key '{}'".format(key))
+                sys.exit(1)
+            URL = URL + "&" + key + "=" + value
+except FileNotFoundError:
+    print("Error: File '{}' not found".format(config_file))
+    sys.exit(1)
+
+with urllib.request.urlopen(URL) as url:
+    resp = json.load(url)
+
+current_status_code = resp['current']['weather'][0]['id']
+current_temp = round(resp['current']['temp'])
+current_desc = resp['current']['weather'][0]['description']
+current_dt = resp['current']['dt']
+current_is_daytime = is_daytime(current_dt, resp)
+current_icon = decode_icon(current_status_code, current_is_daytime)
+
+precipitation_chart = render_minutely_precip_chart(resp)
+precip_chart_string = format_precip_chart_string(precipitation_chart, resp)
+
+hours_to_show = 16
+hourly_hours = get_hourly_hours(hours_to_show, resp)
+hourly_icons = get_hourly_icons(hours_to_show, resp)
+hourly_temps = get_hourly_temps(hours_to_show, resp)
+
+days_to_show = 8
+dlow, dhigh = compute_daily_minmax(days_to_show, resp)
+daily_forecast = get_daily(days_to_show, resp, dlow, dhigh)
+
+tooltip_text = f"<span font_family=\"Fantasque Sans Mono\" size=\"xx-large\">{current_icon} {current_desc}</span>\n\n" \
+    + precip_chart_string \
+    + f"<span font_family=\"Fantasque Sans Mono\">{hourly_hours}</span>\n" \
+    + f"<span font_family=\"Fantasque Sans Mono\">{hourly_icons}</span>\n" \
+    + f"<span font_family=\"Fantasque Sans Mono\">{hourly_temps}</span>" \
+    + daily_forecast
+
+out_data = {
+    "text": f"{current_icon} {current_temp} °C",
+    "class": current_status_code,
+    "alt": current_desc,
+    "tooltip": tooltip_text
+}
+
+print(json.dumps(out_data))
diff --git a/home/gui/sway.nix b/home/gui/sway.nix
index f33324c..2c9cff6 100644
--- a/home/gui/sway.nix
+++ b/home/gui/sway.nix
@@ -7,6 +7,8 @@
   ...
 }: {
   xdg.configFile."sway/config".source = ./files/sway/${osConfig.networking.hostName};
+  xdg.configFile."waybar/weather.py".source = ./files/sway/weather.py;
+  xdg.configFile."waybar/weather.conf".source = ./files/sway/weather.conf;
 
   programs = {
     swaylock = {
@@ -30,7 +32,8 @@
           spacing = 0;
           modules-left = ["sway/workspaces" "sway/mode" "wlr/workspaces" "custom/mycal"];
           modules-center = [];
-          modules-right = ["idle_inhibitor" "custom/mytimew" "pulseaudio" "custom/mymusic" "bluetooth" "network" "backlight" "battery" "battery#bat2" "tray" "custom/mycal" "clock"];
+          # modules-right = ["idle_inhibitor" "custom/mytimew" "pulseaudio" "custom/mymusic" "bluetooth" "network" "backlight" "battery" "battery#bat2" "tray" "custom/mycal" "clock"];
+          modules-right = ["idle_inhibitor" "custom/weather" "pulseaudio" "custom/mymusic" "bluetooth" "network" "backlight" "battery" "battery#bat2" "tray" "custom/mycal" "clock"];
           bluetooth = {
             format-alt = "bt: {status}";
             format-on = "bt";
@@ -47,6 +50,11 @@
             on-scroll-down = "${pkgs.light}/bin/light -A 1";
             on-scroll-up = "${pkgs.light}/bin/lightlight -U 1";
           };
+          "custom/weather" = {
+            exec = "~/.config/waybar/weather.py";
+            interval = 300;
+            return-type = "json";
+          };
           "custom/mytimew" = {
             exec = "~/bin/timebar";
             interval = 30;
@@ -157,7 +165,7 @@
         #workspaces button.focused { background: #64727D; border-bottom: 3px solid #ffffff; }
         #workspaces button.urgent { background-color: #eb4d4b; }
         #mode { background: #64727D; border-bottom: 3px solid #ffffff; }
-        #clock, #battery, #cpu, #memory, #temperature, #backlight, #network, #pulseaudio, #custom-mymusic, #tray, #mode, #idle_inhibitor, #bluetooth {
+        #clock, #battery, #cpu, #memory, #temperature, #backlight, #network, #pulseaudio, #custom-weather, #custom-mymusic, #tray, #mode, #idle_inhibitor, #bluetooth {
         padding: 0 5px;
         margin: 0 0px;
         }
@@ -182,6 +190,7 @@
         #network.disconnected { background: #ff5555; }
         #pulseaudio { background: #ffb86c; color: #000000; }
         #pulseaudio.muted { background: #90b1b1; color: #2a5c45; }
+        #custom-weather { background: #bd93f9; color: #000000; }
         #custom-mytimew { background: #bd93f9; color: #000000; }
         #custom-mymusic { background: #8be9fd; color: #000000; }
         #custom-mycal { background: #cccc99; color: #2a5c45; }