Warm and dry conditions to start the weekend; wetter and cooler with potential flooding by Memorial Day.
Drier, warmer and quieter weather is in store for Friday. With less wind than Thursday, and plenty of sunshine, high temperatures will move up mainly into the mid-80s with lower afternoon humidity.
Saturday morning temperatures start off mainly in the 50s, and will be hot again in the afternoon. Highs will end up mainly in the 80s, with some low 90s in the Eastern plains of the state.
By Saturday evening, scattered late day thunderstorms return. Some will have heavy rain, hail, and gusty winds.
Very wet conditions are expected for the remainder of the Memorial Day weekend, with temperatures cooling to mainly the 60s by Memorial Day.
The combination of warming temperatures at first and heavy rain at times to follow will increase the potential for flooding in area streams and rivers. Be aware of changing conditions with fast-moving waterways, very cold water, and banks that are more likely to give way.
Billings forecast:
Friday… Sunny with a high near 84. Southwest wind 5 to 15 mph.
Friday night… Mostly clear with a low of around 58. Winds remain light.
Saturday… Mostly sunny with a high of about 86. Scattered showers and thunderstorms develop during the afternoon and evening. Some storms could produce gusty winds and small hail.