According to the emergency operation centre here, the incident occurred at around 7.30 am at Tamoligarh village of Doiwala near here.
The 50-year-old woman has been hospitalised, it said.
The MeT department has predicted heavy showers for the hilly districts of Uttarakhand till tomorrow.
Heavy to very heavy rainfall is likely to occur at isolated places in the state, especially in Uttarkashi, Rudraprayag, Chamoli, Bageshwar and Pithoragarh districts, it said.