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Waltham MA Weather - Clear - 41°F
Clear
41°F
Updated 11:39 pm
Feels Like 44°F
Humidity 92%
Wind N 0 mph
Barometer  30.5 in
Dew Point 39°F
Waltham MA Weather - Clear - 5°C
Clear
5°C
Updated 11:39 pm
Feels Like 7°C
Humidity 92%
Wind N 0 km/h
Barometer  103.3 kPa
Dew Point 4°C
Waltham, MA Weather and Current Conditionswaltham ma weather forecast

Waltham, MA Weather Forecast

Waltham Massachusetts WeatherWaltham, Massachusetts Weather Weather Forecast
14 day API Waltham, MA weather forecast. Note. Our 7-day weather forecast for Waltham, Massachusetts is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Waltham, MA Weather Forecast Dated: 1139 PM Sat Oct 10 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and a stable pattern will dominate.

Saturday, October 10, 2026

Mid-Morning
Waltham Weather - 2026-10-10 - Morning - Overcast
51°F 11°C
Overcast
Mid-Afternoon
Waltham Weather - 2026-10-10 - Afternoon - Overcast
63°F 17°C
Overcast
Early-Evening
Waltham Weather - 2026-10-10 - Evening - Overcast
52°F 11°C
Overcast
Refreshing around 63°F 17°C, overcast throughout the day, with lower humidity and steady pressure.

Sunday, October 11, 2026

Mid-Morning
Waltham Weather - 2026-10-11 - Morning - Overcast
53°F 12°C
Overcast
Mid-Afternoon
Waltham Weather - 2026-10-11 - Afternoon - Overcast
61°F 16°C
Overcast
Early-Evening
Waltham Weather - 2026-10-11 - Evening - Overcast
54°F 13°C
Overcast
Mildly cool near 61°F 16°C, overcast throughout the day, with increasing humidity and barometric pressure falling.

Monday, October 12, 2026

Mid-Morning
Waltham Weather - 2026-10-12 - Morning - Light Fog
55°F 13°C
Light Fog
Mid-Afternoon
Waltham Weather - 2026-10-12 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Waltham Weather - 2026-10-12 - Evening - Sunny
62°F 17°C
Sunny
Enjoyable around 70°F 21°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds out of the NNW at 5 mph 8 km/h. Gusts up to 21 mph 34 km/h.

Tuesday, October 13, 2026

Mid-Morning
Waltham Weather - 2026-10-13 - Morning - Scattered Showers
54°F 12°C
Scattered Showers
Mid-Afternoon
Waltham Weather - 2026-10-13 - Afternoon - Overcast
62°F 17°C
Overcast
Early-Evening
Waltham Weather - 2026-10-13 - Evening - Scattered Showers
60°F 16°C
Scattered Showers
Cool with a high near 62°F 17°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds switching from the E to the SSW at 11 mph 17 km/h. Gusts up to 26 mph 42 km/h.

Wednesday, October 14, 2026

Mid-Morning
Waltham Weather - 2026-10-14 - Morning - Sunny
67°F 19°C
Sunny
Mid-Afternoon
Waltham Weather - 2026-10-14 - Afternoon - Scattered Showers
70°F 21°C
Scattered Showers
Early-Evening
Waltham Weather - 2026-10-14 - Evening - Overcast
58°F 15°C
Overcast
Mild with a high of 70°F 21°C, scattered downpours possible, with lower humidity and barometric pressure rising. Winds moving from the WSW to the NNW at 9 mph 15 km/h.

Thursday, October 15, 2026

Mid-Morning
Waltham Weather - 2026-10-15 - Morning - Sunny
48°F 9°C
Sunny
Mid-Afternoon
Waltham Weather - 2026-10-15 - Afternoon - Sunny
58°F 14°C
Sunny
Early-Evening
Waltham Weather - 2026-10-15 - Evening - Partly Cloudy
50°F 10°C
Partly Cloudy
Mildly cool near 58°F 14°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the NW to the NNW at 5 mph 8 km/h.

Friday, October 16, 2026

Mid-Morning
Waltham Weather - 2026-10-16 - Morning - Light Rain
47°F 9°C
Light Rain
Mid-Afternoon
Waltham Weather - 2026-10-16 - Afternoon - Overcast
54°F 12°C
Overcast
Early-Evening
Waltham Weather - 2026-10-16 - Evening - Overcast
63°F 17°C
Overcast
Chilly near 54°F 12°C, early showers breaking for a drier afternoon, with increasing humidity and barometric pressure falling. Winds building from S at 5 mph 8 km/h to SSW at 13 mph 20 km/h. Gusts up to 34 mph 55 km/h.

Saturday, October 17, 2026

Mid-Morning
Waltham Weather - 2026-10-17 - Morning - Drizzle
62°F 17°C
Drizzle
Mid-Afternoon
Waltham Weather - 2026-10-17 - Afternoon - Drizzle
54°F 12°C
Drizzle
Early-Evening
Waltham Weather - 2026-10-17 - Evening - Drizzle
48°F 9°C
Drizzle
Crisp with a high near 54°F 12°C, persistent showers off and on through the day, with steady humidity and barometric pressure rising. Winds turning from the W to the WNW at 8 mph 13 km/h. Gusts up to 20 mph 32 km/h.

Sunday, October 18, 2026

Mid-Morning
Waltham Weather - 2026-10-18 - Morning - Sunny
38°F 3°C
Sunny
Mid-Afternoon
Waltham Weather - 2026-10-18 - Afternoon - Overcast
47°F 8°C
Overcast
Early-Evening
Waltham Weather - 2026-10-18 - Evening - Overcast
42°F 6°C
Overcast
Brisk around 47°F 8°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure rising. Winds out of the NNW at 8 mph 13 km/h.

Monday, October 19, 2026

Mid-Morning
Waltham Weather - 2026-10-19 - Morning - Sunny
37°F 3°C
Sunny
Mid-Afternoon
Waltham Weather - 2026-10-19 - Afternoon - Sunny
49°F 10°C
Sunny
Early-Evening
Waltham Weather - 2026-10-19 - Evening - Clear
42°F 5°C
Clear
Cool and brisk at 49°F 10°C, sunny throughout the day, with steady humidity and steady pressure.

Tuesday, October 20, 2026

Mid-Morning
Waltham Weather - 2026-10-20 - Morning - Overcast
40°F 5°C
Overcast
Mid-Afternoon
Waltham Weather - 2026-10-20 - Afternoon - Overcast
53°F 12°C
Overcast
Early-Evening
Waltham Weather - 2026-10-20 - Evening - Clear
45°F 7°C
Clear
Chilly near 53°F 12°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.

Wednesday, October 21, 2026

Mid-Morning
Waltham Weather - 2026-10-21 - Morning - Sunny
44°F 7°C
Sunny
Mid-Afternoon
Waltham Weather - 2026-10-21 - Afternoon - Overcast
58°F 14°C
Overcast
Early-Evening
Waltham Weather - 2026-10-21 - Evening - Cloudy
50°F 10°C
Cloudy
Cool with a high near 58°F 14°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling.

Thursday, October 22, 2026

Mid-Morning
Waltham Weather - 2026-10-22 - Morning - Overcast
50°F 10°C
Overcast
Mid-Afternoon
Waltham Weather - 2026-10-22 - Afternoon - Overcast
61°F 16°C
Overcast
Early-Evening
Waltham Weather - 2026-10-22 - Evening - Overcast
56°F 13°C
Overcast
Refreshing around 61°F 16°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds blowing from the SSW at 12 mph 19 km/h. Gusts up to 28 mph 44 km/h.

Friday, October 23, 2026

Mid-Morning
Waltham Weather - 2026-10-23 - Morning - Cloudy
52°F 11°C
Cloudy
Mid-Afternoon
Waltham Weather - 2026-10-23 - Afternoon - Partly Cloudy
63°F 17°C
Partly Cloudy
Early-Evening
Waltham Weather - 2026-10-23 - Evening - Overcast
52°F 11°C
Overcast
Mildly cool near 63°F 17°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds swinging from the WSW to the NNW at 7 mph 11 km/h.

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Weather by the Numbers

Sat, 10th
Waltham MA Weather - Saturday, Oct 10, 2026 - Overcast
Hi: 63°F 17°C
Lo: 45°F 7°C
Sunrise 06:52 AM
Sunset 06:11 PM
Wind NW 8 mph12 km/h
Dew Point 30°F-1°C
uv Index 3
Barometric Pressure 30.45 in1031 mb
POP 9% *
Humidity 33%
Sun, 11th
Waltham MA Weather - Sunday, Oct 11, 2026 - Overcast
Hi: 61°F 16°C
Lo: 46°F 8°C
Sunrise 06:53 AM
Sunset 06:09 PM
Wind S 7 mph12 km/h
Dew Point 41°F5°C
uv Index 3
Barometric Pressure 30.39 in1029 mb
POP 12% *
Humidity 50%
Mon, 12th
Waltham MA Weather - Monday, Oct 12, 2026 - Cloudy
Hi: 71°F 22°C
Lo: 53°F 12°C
Sunrise 06:54 AM
Sunset 06:08 PM
Wind N 4 mph7 km/h
Dew Point 54°F12°C
uv Index 1
Barometric Pressure 29.8 in1009 mb
POP 17% *
Humidity 80%
Tue, 13th
Waltham MA Weather - Tuesday, Oct 13, 2026 - Overcast
Hi: 62°F 17°C
Lo: 52°F 11°C
Sunrise 06:56 AM
Sunset 06:06 PM
Wind SE 5 mph8 km/h
Dew Point 50°F10°C
uv Index 3
Barometric Pressure 30.09 in1019 mb
POP 22% *
Humidity 77%
Wed, 14th
Waltham MA Weather - Wednesday, Oct 14, 2026 - Sunny
Hi: 74°F 23°C
Lo: 53°F 12°C
Sunrise 06:57 AM
Sunset 06:04 PM
Wind W 15 mph24 km/h
Dew Point 56°F14°C
uv Index 6
Barometric Pressure 29.74 in1007 mb
POP 3% *
Humidity 54%
Thu, 15th
Waltham MA Weather - Thursday, Oct 15, 2026 - Sunny
Hi: 58°F 15°C
Lo: 43°F 6°C
Sunrise 06:58 AM
Sunset 06:03 PM
Wind NW 11 mph18 km/h
Dew Point 30°F-1°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 1% *
Humidity 38%
Fri, 16th
Waltham MA Weather - Friday, Oct 16, 2026 - Light Drizzle
Hi: 65°F 19°C
Lo: 41°F 5°C
Sunrise 06:59 AM
Sunset 06:01 PM
Wind S 8 mph13 km/h
Dew Point 47°F9°C
uv Index 2
Barometric Pressure 30.06 in1018 mb
POP 79% *
Humidity 94%
Sat, 17th
Waltham MA Weather - Saturday, Oct 17, 2026 - Overcast
Hi: 66°F 19°C
Lo: 43°F 6°C
Sunrise 07:00 AM
Sunset 06:00 PM
Wind WNW 7 mph11 km/h
Dew Point 54°F12°C
uv Index 3
Barometric Pressure 29.71 in1006 mb
POP 59% *
Humidity 90%
Sun, 18th
Waltham MA Weather - Sunday, Oct 18, 2026 - Overcast
Hi: 47°F 8°C
Lo: 35°F 2°C
Sunrise 07:01 AM
Sunset 05:58 PM
Wind NNW 9 mph14 km/h
Dew Point 23°F-5°C
uv Index 2
Barometric Pressure 30.24 in1024 mb
POP 3% *
Humidity 42%
Mon, 19th
Waltham MA Weather - Monday, Oct 19, 2026 - Sunny
Hi: 50°F 10°C
Lo: 32°F -0°C
Sunrise 07:03 AM
Sunset 05:57 PM
Wind ESE 7 mph11 km/h
Dew Point 16°F-9°C
uv Index 3
Barometric Pressure 30.56 in1035 mb
POP 1% *
Humidity 29%
Tue, 20th
Waltham MA Weather - Tuesday, Oct 20, 2026 - Overcast
Hi: 54°F 12°C
Lo: 32°F 0°C
Sunrise 07:04 AM
Sunset 05:55 PM
Wind WNW 3 mph5 km/h
Dew Point 23°F-5°C
uv Index 3
Barometric Pressure 30.45 in1031 mb
POP 10% *
Humidity 32%
Wed, 21st
Waltham MA Weather - Wednesday, Oct 21, 2026 - Sunny
Hi: 59°F 15°C
Lo: 37°F 3°C
Sunrise 07:05 AM
Sunset 05:54 PM
Wind S 4 mph6 km/h
Dew Point 32°F-0°C
uv Index 4
Barometric Pressure 30.39 in1029 mb
POP 1% *
Humidity 40%
Thu, 22nd
Waltham MA Weather - Thursday, Oct 22, 2026 - Overcast
Hi: 62°F 16°C
Lo: 44°F 6°C
Sunrise 07:06 AM
Sunset 05:52 PM
Wind SSW 11 mph18 km/h
Dew Point 41°F5°C
uv Index 3
Barometric Pressure 30.12 in1020 mb
POP 12% *
Humidity 52%
Fri, 23rd
Waltham MA Weather - Friday, Oct 23, 2026 - Overcast
Hi: 65°F 18°C
Lo: 46°F 8°C
Sunrise 07:07 AM
Sunset 05:51 PM
Wind W 9 mph14 km/h
Dew Point 44°F7°C
uv Index 4
Barometric Pressure 29.91 in1013 mb
POP 9% *
Humidity 54%
* POP = Probability of Precipitation. Data for 12:00 PM.