Morning on Capitol Hill. (Erik Cox) * Freeze watch in Frederick County for Tuesday night into Wednesday morning * TODAY’S DAILY DIGIT A somewhat subjective rating of the day’s weather, on a scale of 0 to 10. 6/10: A crisp but sunny diversion from our warm October version EXPRESS FORECAST Today: Sunny, breezy, colder. Highs: 58-62. Tonight: Mostly clear and colder. Lows: 35-45. Tomorrow: Sunny and cool. Highs: 56-60. View the current weather conditions at The Washington Post headquarters. FORECAST IN DETAIL The coolest conditions since April arrive today, forcing us to zip up the jackets and keep an eye on the plants. Temperatures are running below normal today and tomorrow. Needed showers arrive Thursday but escape before Friday. Our final October weekend is typical autumn, with just a shot at some stray showers. Today (Tuesday): Sunny skies and cooler than yesterday with highs in the upper 50s to low 60s. Brisk winds from the northwest at 5 to 10 mph with gusts to 15 offer some slight wind chill effects at times. Confidence: High Tonight: Mostly clear skies and calm wind set the stage for freeze and frost concerns in the outer western to northwestern suburbs especially. Lows range widely from the middle 30s to the middle 40s (in the city), but far outer spots could dip toward the freezing mark. Confidence: High |