bug fix

app.py

@@ -166,11 +166,11 @@ def main():
     data_plot = adjust_data_for_plot(df.copy(), preds)
     fig, _ = generate_plot(data_plot)
 
-    datepicker = st.date_input("Start of Forecast", datetime.date(2022, 10, 24), min_value=datetime.date(2022, 6, 26) + datetime.timedelta(days = 35), max_value=datetime.date(2023, 6, 26) - datetime.timedelta(days = 30), key = "date")
+    datepicker = st.date_input("Start of Forecast",  st.session_state.date, min_value=datetime.date(2022, 6, 26) + datetime.timedelta(days = 35), max_value=datetime.date(2023, 6, 26) - datetime.timedelta(days = 30), key = "date")
 
     st.pyplot(fig)
 
-    temperature = st.slider('Change in Temperature', min_value=-10.0, max_value=10.0, value=0.0, step=0.25, key = "temperature")
+    temperature = st.slider('Change in Temperature', min_value=-10.0, max_value=10.0, value=st.session_state.temperature, step=0.25, key = "temperature")
     rain = st.radio("Rain Indicator", ('Default', 'Yes', 'No'), key = "rain")
     
 if __name__ == '__main__':