diff --git a/lib/tenkit/client.rb b/lib/tenkit/client.rb
index 3386ab7..57614eb 100644
--- a/lib/tenkit/client.rb
+++ b/lib/tenkit/client.rb
@@ -24,14 +24,21 @@ def initialize
       Tenkit.config.validate!
     end
 
-    def availability(lat, lon, country: 'US')
-      get("/availability/#{lat}/#{lon}?country=#{country}")
+    def availability(lat, lon, **options)
+      options[:country] ||= 'US'
+
+      query = { country: options[:country] }
+      get("/availability/#{lat}/#{lon}", query: query)
     end
 
-    def weather(lat, lon, data_sets: [:current_weather], language: 'en')
-      path_root = "/weather/#{language}/#{lat}/#{lon}?dataSets="
-      path = path_root + data_sets.map { |ds| DATA_SETS[ds] }.compact.join(',')
-      response = get(path)
+    def weather(lat, lon, **options)
+      options[:data_sets] ||= [:current_weather]
+      options[:language] ||= 'en'
+
+      query = weather_query_for_options(options)
+      path = "/weather/#{options[:language]}/#{lat}/#{lon}"
+
+      response = get(path, query: query)
       WeatherResponse.new(response)
     end
 
@@ -43,9 +50,15 @@ def weather_alert(id, language: 'en')
 
     private
 
-    def get(url)
+    def get(url, query: nil)
       headers = { Authorization: "Bearer #{token}" }
-      self.class.get(url, { headers: headers })
+      params = { headers: headers }
+
+      if !query.nil?
+        params[:query] = query
+      end
+
+      self.class.get(url, params)
     end
 
     def header
@@ -72,5 +85,22 @@ def key
     def token
       JWT.encode payload, key, 'ES256', header
     end
+
+    # Snake case options to expected query parameters
+    # https://developer.apple.com/documentation/weatherkitrestapi/get-api-v1-weather-_language_-_latitude_-_longitude_#query-parameters
+    def weather_query_for_options(options)
+      data_sets_param = options[:data_sets].map { |ds| DATA_SETS[ds] }.compact.join(',')
+
+      {
+        countryCode: options[:country_code],
+        currentAsOf: options[:current_as_of],
+        dailyEnd: options[:daily_end],
+        dailyStart: options[:daily_start],
+        dataSets: data_sets_param,
+        hourlyEnd: options[:hourly_end],
+        hourlyStart: options[:hourly_start],
+        timezone: options[:timezone]
+      }.compact
+    end
   end
 end
diff --git a/spec/tenkit/tenkit/weather_spec.rb b/spec/tenkit/tenkit/weather_spec.rb
index 1176cc5..4a290d7 100644
--- a/spec/tenkit/tenkit/weather_spec.rb
+++ b/spec/tenkit/tenkit/weather_spec.rb
@@ -3,6 +3,10 @@
 RSpec.describe Tenkit::Weather do
   let(:lat) { 37.32 }
   let(:lon) { 122.03 }
+  let(:path) { "/weather/en/#{lat}/#{lon}" }
+  let(:data_sets) { [Tenkit::Utils.snake(data_set).to_sym] }
+  let(:query) { {query: {dataSets: data_set}} }
+
   let(:client) { Tenkit::Client.new }
   let(:api_response) { double("WeatherResponse", body: json) }
   let(:json) { File.read("test/fixtures/#{data_set}.json") }
@@ -12,7 +16,12 @@
   describe "currentWeather" do
     let(:data_set) { "currentWeather" }
 
-    subject { client.weather(lat, lon).weather.current_weather }
+    subject { client.weather(lat, lon, data_sets: data_sets).weather.current_weather }
+
+    it "returns response from correct data_sets" do
+      subject
+      expect(client).to have_received(:get).with(path, query)
+    end
 
     it "includes expected metadata" do
       expect(subject.name).to eq "CurrentWeather"
@@ -30,16 +39,26 @@
       expect(subject.temperature).to be(-5.68)
       expect(subject.temperature_apparent).to be(-6.88)
     end
+
+    context "without options" do
+      subject { client.weather(lat, lon).weather.current_weather }
+
+      it "returns response from default currentWeather data set" do
+        expect(subject.name).to eq "CurrentWeather"
+        expect(client).to have_received(:get).with(path, query)
+      end
+    end
   end
 
   describe "forecastDaily" do
     let(:data_set) { "forecastDaily" }
     let(:first_day) { subject.days.first }
 
-    subject { client.weather(lat, lon).weather.forecast_daily }
+    subject { client.weather(lat, lon, data_sets: data_sets).weather.forecast_daily }
 
-    it "returns 10 days of data" do
+    it "returns 10 days of data from correct data sets" do
       expect(subject.days.size).to be 10
+      expect(client).to have_received(:get).with(path, query)
     end
 
     it "returns correct object types" do
@@ -80,10 +99,11 @@
     let(:data_set) { "forecastHourly" }
     let(:first_hour) { subject.hours.first }
 
-    subject { client.weather(lat, lon).weather.forecast_hourly }
+    subject { client.weather(lat, lon, data_sets: data_sets).weather.forecast_hourly }
 
-    it "returns 25 hours of data" do
+    it "returns 25 hours of data from correct data sets" do
       expect(subject.hours.size).to be 25
+      expect(client).to have_received(:get).with(path, query)
     end
 
     it "includes expected metadata" do