South Waltham, MA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Clear 33°F
Feels Like 30°F  
Humidity 64% Dew Point 22°F Wind NW 3 MPH Gusts 7 Barometer 30.15 in.
Report from a MADIS/MESONET weather station 0.3 mi. ESE of central South Waltham
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Point Forecast at a Glance

SatNov 29
Sat Nov 29: Sunny, High 41F, Low 26F
41
26
SunNov 30
Sun Nov 30: Snow, High 50F, Low 34F
80%
50
34
MonDec 1
Mon Dec 1: Sunny, High 40F, Low 24F
40
24
TueDec 2
Tue Dec 2: Snow, High 39F, Low 29F
80%
39
29
WedDec 3
Wed Dec 3: Snow, High 39F, Low 26F
30%
39
26
ThuDec 4
Thu Dec 4: Partly Sunny, High 39F, Low 15F
39
15
FriDec 5
Fri Dec 5: Mostly Sunny, High 32F
32
 

7-Day Temperature Trend

Week Ahead Summary

Cooling trend continues with high temperatures dropping from 41°F to 32°F. Some snow possible with at least 3 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 6°F below the historical average for November-December. Normal highs for this period are around 46°F with lows around 28°F.

This Date in Weather History

1975 - Red River was buried under 34 inches of snow in 24 hours, establishing a record for the state of New Mexico.

More on this and other weather history

South Waltham, MA 7 Day Weather Forecast Details

Saturday Nov 29

Sunny

Day: Sunny, with a high near 41. West wind 7 to 10 mph, with gusts as high as 21 mph.

Increasing Clouds

Night: Increasing clouds, with a low around 26. Calm wind.

Sunday Nov 30

Snow

Day: A slight chance of snow before 10am, then rain. High near 50. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Rain

Night: Rain, mainly before midnight. Low around 34. West wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday Dec 1

Sunny

Day: Sunny, with a high near 40. West wind 8 to 11 mph, with gusts as high as 24 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 24. Northwest wind around 5 mph becoming calm in the evening.

Tuesday Dec 2

Snow

Day: A chance of snow before noon, then rain. High near 39. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.

Snow

Night: Rain, possibly mixed with snow before 3am, then a chance of snow. Low around 29. North wind 3 to 8 mph. Chance of precipitation is 80%.

Wednesday Dec 3

Snow

Day: A chance of snow before 8am. Mostly sunny, with a high near 39. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

Mostly Cloudy

Night: Mostly cloudy, with a low around 26. Southwest wind 3 to 6 mph.

Thursday Dec 4

Partly Sunny

Day: Partly sunny, with a high near 39. West wind 6 to 10 mph, with gusts as high as 22 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 15. West wind 6 to 8 mph.

Friday Dec 5

Mostly Sunny

Day: Mostly sunny, with a high near 32. West wind around 7 mph.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.