The National Weather Service in Portland issued a detailed forecast predicting a wet week, with showers likely progressing to thunderstorms after 2:00 p.m. According to the forecast, the high should hover near 61 degrees. In the morning calm, residents can expect a shift toward a south-southwest wind around 6 mph. "Showers likely before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm," stated the forecast, as the chance of precipitation stands at a solid 90%. New rainfall amounts are anticipated to fall between a tenth and a quarter of an inch, although the possibility of thunderstorms could drive those figures higher.
The clouds are expected to persist into the evening, bringing a 40% chance of continuous showers and thunderstorms. Temperatures will drop to a low around 48, with a light west wind turning variable later in the evening. New precipitation should be less than a tenth of an inch, save for potential increases during thunderstorm activity. Heading into Tuesday, skies remain mostly cloudy, and a 30 percent chance of showers persists. Highs are predicted to be close to 64 with south-southwest winds at a gentle 3 to 7 mph.
By Wednesday, there's a slight reprieve in the forecast with just a 20% chance of showers before 11:00 a.m. and highs near 65. The pattern of mostly cloudy skies sticks around, and the wind is expected to maintain its direction from the south southwest at 5 to 7 mph before switching to the west in the afternoon. Wednesday night might offer a break from the rain with partly cloudy conditions and a drop in temperature to around 46 degrees.
Looking to the latter half of the week, Portland residents can expect a mix of sun and clouds on Thursday with highs creeping up near 66. However, the forecast hints at a slight chance of showers come Thursday night, with a return to mostly cloudy conditions and lows around 49. Friday may start dry, with a slight chance of showers after 11:00 a.m. and highs expected to be comfortably warm near 69.
Over the weekend, the weather remains predictably unpredictable with chances of showers continuing through Saturday and highs persisting near 66. Nighttime brings a slight chance of showers with lows around 49. By Sunday, the forecast suggests another day of a slight chance of showers and partly sunny skies, with a high again nearing 66 degrees.
