Today and Friday, a Colorado low will bring rain and thunderstorms to the valley. A warm front is expected to cause thunderstorms and lightning in the north, along with widespread rain throughout the morning.
Most of the rain will fall during the first half of the day, with the rain moving into Canada by early afternoon. Isolated showers or thundershowers will continue into the afternoon and evening, followed by a cold front with gusts over 30 mph.
The valley will experience a wide temperature range, with warmer temperatures in the south (60s to low 70s) and cooler temperatures in the north (50s and 60s) due to ongoing rain.
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Author's summary: Rain and thunderstorms expected today and Friday.