Watson Lake is in for a hot start to the week, with temperatures climbing well above the June average, but residents should be ready for a quick shift to stormy weather. Environment Canada recorded a temperature of 21°C at the Watson Lake Airport by late morning on Monday, June 22, 2026, and forecasts a high of 26°C. That is six degrees warmer than the usual high of 20°C for this time of year.
The sunshine early in the day will give way to a mix of sun and cloud, with a 30 percent chance of showers and a risk of thunderstorms later in the afternoon. The UV index is rated 6, or high, so anyone heading outside should take sun protection seriously. Overnight, the skies are expected to clear, with a low of 12°C.
Tuesday will stay warm with a high of 25°C, and the UV index will again be high. However, Environment Canada warns of another round of possible thunderstorms late in the afternoon. From Wednesday onward, the forecast turns increasingly unsettled. Wednesday and Thursday will be sunny during the day, but nighttime brings a 60 percent chance of showers. By Friday, the chance of rain sits at 60 percent all day, with showers likely through the weekend.
The The Weather Network shows the heaviest rain arriving later in the extended forecast. On Tuesday, June 30, there is a 90 percent probability of rain, with 10 to 15 millimetres expected. For context, a typical June in Watson Lake sees about 55 millimetres of precipitation spread over 13 days.
Residents planning outdoor work or recreation early in the week should take advantage of the warm, dry mornings, while keeping an eye on the sky for sudden changes later in the day.
