Here’s the updated daily weather forecast by Meteorologist Matthew Moll of New England Weather Consulting:
Weather Outlook: October 8 to October 15, 2025
A strong cold front midweek ends the recent stretch of summer-like warmth and ushers in a much more autumnal feel. Waltham will see periods of steady rain early Wednesday, followed by a sharp cooldown and crisp, dry conditions to finish the week. Frost is possible by early Friday in cooler pockets. The weekend looks bright and seasonable, though a coastal system may bring showers and gusty winds late Sunday into early next week.
Wednesday, October 8 – Rain early, then turning cooler
Widespread morning rain tapers by midday, with clouds lingering and falling afternoon temperatures.
• High: 66–68°F → cooling into the 50s | Low: 38–40°F | Wind: SW 9 mph → NW 10–15 mph, gusts to 20+ mph
• Sky: Cloudy early → partial clearing late
• Chance of rain: 100% (0.75–1″ possible)
• Dew point: 55–60°F early → 40s by evening
Thursday, October 9 – Sunny and much cooler
Dry, crisp fall air settles in under full sunshine and a northerly breeze.
• High: 57–59°F | Low: 32–34°F | Wind: N 8–10 mph, gusts to 20 mph
• Sky: Sunny
• Chance of rain: 0%
• Dew point: 30–35°F
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Friday, October 10 – Frosty start, pleasant finish
Widespread frost early, then bright sun and seasonable afternoon warmth.
• High: 61–63°F | Low: 31–33°F | Wind: Calm → SW 5–7 mph
• Sky: Sunny
• Chance of rain: 0%
• Dew point: 30–35°F
Saturday, October 11 – Mild and fair
A classic October day with plenty of sunshine and light winds.
• High: 65–67°F | Low: 43–45°F | Wind: W 6 mph → E 5 mph
• Sky: Mostly sunny
• Chance of rain: 0%
• Dew point: 40–45°F
Sunday, October 12 – Watching a possible coastal storm
Increasing clouds with a chance of late-day showers and gusty northeast winds.
• High: 60–62°F | Low: 48–50°F | Wind: NE 10–15 mph, gusts 20+ mph
• Sky: Partly to mostly cloudy
• Chance of rain: 30%
• Dew point: 45–50°F
Monday, October 13 – Columbus Day: Unsettled
Clouds linger with a few showers possible if the coastal storm tracks north.
• High: 63–65°F | Low: 48–50°F | Wind: NE 8–12 mph, gusts 20+ mph
• Sky: Mostly cloudy
• Chance of rain: 30%
• Dew point: 45–50°F
Tuesday, October 14 – Seasonable and partly sunny
Dry and pleasant if the storm stays south, with light northeast winds.
• High: 64–66°F | Low: 44–46°F | Wind: Light NE
• Sky: Partly sunny
• Chance of rain: 10%
• Dew point: 40–45°F
Wednesday, October 15 – Bright and cool
High pressure returns with crisp, sunny skies and a light northwest breeze.
• High: 62–64°F | Low: 40–42°F | Wind: NW 8–10 mph
• Sky: Sunny
• Chance of rain: 0%
• Dew point: 38–42°F
