Brockville – Today is mainly cloudy, with a 30 percent chance of showers this afternoon and a risk of a thunderstorm. The high is 28, and the humidex is 37. The UV index is 9 or very high.
Tonight will be mainly cloudy, with a 60 percent chance of showers and a risk of a thunderstorm. The low will be 20.
Thursday will be cloudy with a 30 percent chance of showers and a risk of a thunderstorm. The wind will be coming out of the southwest at 20 km/h late in the morning. Thursday’s high is 24, and the humidex is 31. The UV index is 1 or low.
Your 5-day local forecast:
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