News Haliburton under a rainfall warning SHARE ON: Taylor Ablett, contributor, Monday, May. 1st, 2017 We’re likely to see some heavy rainfall continuing into your first day of May in Haliburton. Environment Canada is warning the storm that pushed into the district last night is going to hang around for the day. We could see up to 40 mm or rain falling by the end of today and some areas might even see up to 50 mm depending on thunderstorm activity. The weather service is expecting some areas could see thunderstorms crop up across the county.