NWS & WXSIM Forecasts


National Weather Service Forecast for: Lowell, MA
Issued by: National Weather Service Boston / Norton, MA
Updated: Sep/18/2026 7:02am

Lowell, MA
 
Today

Today: Sunny
Sunny
Saturday

Saturday: Sunny
Sunny
Sunday

Sunday: Rain Showers Likely
Rain Showers Likely
Monday

Monday: Chance Rain Showers
Chance Rain Showers
Tuesday

Tuesday: Chance Rain Showers
Chance Rain Showers
Wednesday

Wednesday: Partly Sunny
Partly Sunny
Thursday

Thursday: Chance Rain Showers
Chance Rain Showers
 
Hi 76 °F Hi 66 °F Hi 65 °F Hi 65 °F Hi 60 °F Hi 61 °F Hi 62 °F  
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Rain Showers
Rain Showers
Monday
Night
Monday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
Tuesday
Night
Tuesday Night: Slight Chance Rain Showers then Mostly Cloudy
Slight Chance Rain Showers then Mostly Cloudy
Wednesday
Night
Wednesday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
Thursday
Night
Thursday Night: Chance Rain Showers
Chance Rain Showers
 
Lo 47 °F Lo 47 °F Lo 53 °F Lo 49 °F Lo 48 °F Lo 47 °F Lo 48 °F  

 

Today
 
Sunny, with a high near 76. Northwest wind 3 to 9 mph.
Tonight
 
Mostly clear, with a low around 47. North wind 3 to 8 mph.
Saturday
 
Sunny, with a high near 66. Northeast wind around 5 mph.
Saturday Night
 
Partly cloudy, with a low around 47. Southeast wind around 3 mph.
Sunday
 
Rain showers likely after 11am. Mostly cloudy, with a high near 65. Southeast wind 1 to 5 mph. Chance of precipitation is 60%.
Sunday Night
 
Rain showers likely before 8pm, then rain showers and patchy fog. Cloudy, with a low around 53. Northeast wind around 3 mph. Chance of precipitation is 80%.
Monday
 
A chance of rain showers. Partly sunny, with a high near 65. Northeast wind 3 to 7 mph. Chance of precipitation is 30%.
Monday Night
 
A slight chance of rain showers. Partly cloudy, with a low around 49. Northeast wind 2 to 7 mph.
Tuesday
 
A chance of rain showers. Mostly cloudy, with a high near 60. Northeast wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tuesday Night
 
A slight chance of rain showers before 10pm. Mostly cloudy, with a low around 48. Northeast wind 3 to 8 mph.
Wednesday
 
Partly sunny, with a high near 61. Northeast wind 8 to 12 mph, with gusts as high as 25 mph.
Wednesday Night
 
A slight chance of rain showers. Partly cloudy, with a low around 47. Northeast wind 5 to 9 mph.
Thursday
 
A chance of rain showers. Partly sunny, with a high near 62. Northeast wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday Night
 
A chance of rain showers. Mostly cloudy, with a low around 48. Northeast wind 5 to 8 mph.

 

Forecast from NOAA-NWS for Lowell, MA.

Technical Forecast Discussion



WXSIM Forecast for: Lowell
Issued by: Lowell Highlands Weather
Updated: Friday, 18-Sep-2026 05:51 am
 
Today

Fog a.m.
Fog a.m.
Tonight

Fog late
Fog late
Saturday

Fog a.m.
Fog a.m.
Saturday
night
Partly Cloudy
Partly Cloudy
Sunday

Chance rain
Chance rain
Sunday
night
Rain likely
Rain likely
Monday

Chance rain
Chance rain
Monday
night
Mostly Cloudy
Mostly Cloudy
.1 in. .5 in. <.1 in.
High 79°F Low 54°F High 72°F Low 51°F High 68°F Low 56°F High 65°F Low 50°F
NW
4-16→9-18
mph
NW
7-17
mph
NNE→ESE
4
mph
SSE
3
mph
SSE
4
mph
ESE→NNE
5-14
mph
NE
7-15
mph
NNE
6
mph
UV: 5
 Medium 
UV: 5
 Medium 
UV: 3
 Medium 
UV: 3
 Medium 

 

Today
 
Partly to mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Patchy light fog in the morning. Warm. High 79°F. UV index up to 5. Wind northwest around 4 mph, gusting to 16 mph, in the morning, becoming 9 mph, gusting to 18 mph, in the afternoon.
Tonight
 
Fair to partly cloudy. Patchy light fog after midnight. Low 54°F. Wind northwest around 7 mph, gusting to 17 mph.
Saturday
 
Partly cloudy in the morning, becoming mostly sunny in the afternoon. Patchy light fog in the morning. High 72°F. UV index up to 5. Wind north-northeast around 4 mph in the morning, becoming east-southeast in the afternoon.
Saturday night
 
Fair in the evening, becoming partly cloudy after midnight. Low 51°F. Wind south-southeast around 3 mph.
Sunday
 
Mostly cloudy in the morning, becoming dense overcast in the afternoon. A chance of rain in the afternoon. High 68°F. UV index up to 3. Wind south-southeast around 4 mph. Chance of precipitation 40 percent. Precipitation mostly around a tenth of an inch.
Sunday night
 
Dense overcast. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain in the evening, then rain likely after midnight. Low 56°F. Wind east-southeast around 5 mph, gusting to 14 mph, in the evening, becoming north-northeast after midnight. Chance of precipitation 70 percent. Precipitation mostly around half an inch.
Monday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. High 65°F. UV index up to 3. Wind northeast around 7 mph, gusting to 15 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Monday night
 
Mostly cloudy in the evening, becoming partly to mostly cloudy after midnight. Cool. Low 50°F. Wind north-northeast around 6 mph.

WXSIM forecast formatting script by Saratoga-Weather.org.