 Use your KTGO three-day forecast from weatherology.com. Overcast skies tonight with a chance of thunderstorms. Lows around 43. North winds 10 to 20 miles per hour. Partly cloudy skies tomorrow, high of 63. Lows level off around 46 tomorrow night. High temperatures reaching up to 71 Sunday with a slight chance of rain showers. Chance for storms, 76 on Monday. From the Flag Weather Center, I'm meteorologist Laurel Lockwood. Right now, it's 55 degrees.