Weather for Waltham, Massachusetts
Current Weather
Humidity: 93%
Feels Like: 36.9°F
Wind: SW 11 mph
Wind Gusts: 17.1 mph
Precipitation: 0.04 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast
Sun
H: 47°F
L: 26°F
Mon
H: 44°F
L: 28°F
Tue
H: 42°F
L: 26°F
Wed
H: 38°F
L: 28°F
Thu
H: 38°F
L: 16°F
Air Quality
Nitrogen Dioxide: 13.15 μg/m3
Sulphur Dioxide: 6.85 μg/m3
Ozone: 53 μg/m3
Astronomical
Sun Transit: 11:33 AM
Sunset: 4:14 PM
Daylight: 9 hrs 19 mins
Moon Transit: 12:00 AM
Moonset: 1:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.6%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:32 AM - 12:02 AM
Minor Periods
12:48 AM - 2:18 PM12:55 AM - 2:25 AM
Action Rating: 2 out of 5
Winter Storm Watch issued November 30 at 1:14PM EST until December 3 at 1:00AM EST by NWS Boston/Norton MA
Effective: Sun November 30, 2025, 1:14 PM
Expires: Mon December 1, 2025, 5:00 AM
* WHAT...Heavy snow possible Central & Western Massachusetts for snow accumulations greater than 6 inches. * WHERE...Portions of central, eastern, northeastern, and western Massachusetts. * WHEN...From Tuesday morning through late Tuesday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Tuesday morning and evening commutes.
Monitor the latest forecasts for updates on this situation.
Winter Storm Watch issued November 30 at 1:01PM EST until December 3 at 1:00AM EST by NWS Gray ME
Effective: Sun November 30, 2025, 1:01 PM
Expires: Mon December 1, 2025, 1:15 AM
* WHAT...Heavy snow possible. Total snow accumulations greater than 6 inches possible. * WHERE...Portions of south central, southwest, and western Maine and central, northern, and southern New Hampshire. * WHEN...From Tuesday morning through late Tuesday night. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. Periods of moderate and heavy snow will combine with low visibility to create dangerous driving conditions. The hazardous conditions could impact the Tuesday morning and evening commutes.
Monitor the latest forecasts for updates on this situation. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.
Weather Forecast
Average Temperature: 36.5°F
Average Humidity: 70%
Wind: 11.4 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 35.58 μg/m3
Sulphur Dioxide: 5.13 μg/m3
Ozone: 34.12 μg/m3
Astronomical
Sun Transit: 11:33 AM
Sunset: 4:14 PM
Daylight: 9 hrs 19 mins
Moon Transit: 12:00 AM
Moonset: 1:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.6%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:32 AM - 12:02 AM
Minor Periods
12:48 AM - 2:18 PM12:55 AM - 2:25 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 37°F
Average Humidity: 69%
Wind: 13.2 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 12.16 μg/m3
Sulphur Dioxide: 4.12 μg/m3
Ozone: 60.6 μg/m3
Astronomical
Sun Transit: 11:34 AM
Sunset: 4:13 PM
Daylight: 9 hrs 18 mins
Moon Transit: 8:43 PM
Moonset: 2:41 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%
Best Times for Fishing or Hunting
Major Periods
10:22 AM - 12:52 AM8:13 PM - 10:43 PM
Minor Periods
1:12 PM - 2:42 PM2:11 AM - 3:41 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 33°F
Average Humidity: 90%
Wind: 15.2 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 38.56 μg/m3
Sulphur Dioxide: 6.07 μg/m3
Ozone: 33.76 μg/m3
Astronomical
Sun Transit: 11:34 AM
Sunset: 4:13 PM
Daylight: 9 hrs 17 mins
Moon Transit: 9:39 PM
Moonset: 4:01 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.7%
Best Times for Fishing or Hunting
Major Periods
11:16 AM - 1:46 PM9:09 PM - 11:39 PM
Minor Periods
1:41 PM - 3:11 PM3:31 AM - 5:01 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 33°F
Average Humidity: 78%
Wind: 13.4 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 26.18 μg/m3
Sulphur Dioxide: 3.85 μg/m3
Ozone: 54.4 μg/m3
Astronomical
Sun Transit: 11:35 AM
Sunset: 4:13 PM
Daylight: 9 hrs 16 mins
Moon Transit: 10:41 PM
Moonset: 5:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.1%
Best Times for Fishing or Hunting
Major Periods
12:16 AM - 2:46 PM12:00 AM - 12:00 AM
Minor Periods
2:18 PM - 3:48 PM4:54 AM - 6:24 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 30.3°F
Average Humidity: 76%
Wind: 16.6 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 36.17 μg/m3
Sulphur Dioxide: 4.87 μg/m3
Ozone: 40.08 μg/m3
Astronomical
Sun Transit: 11:35 AM
Sunset: 4:13 PM
Daylight: 9 hrs 14 mins
Moon Transit: 11:47 PM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 99.9%
Best Times for Fishing or Hunting
Major Periods
1:20 PM - 3:50 PM12:00 AM - 12:00 AM
Minor Periods
3:05 PM - 4:35 PM6:18 AM - 7:48 AM
Action Rating: 5 out of 5