Current Conditions
Chelmsford, Massachusetts
Wind
NNW 3 mph5 km/h
Humidity
84%
Cloud Cover
96%
As of Tuesday, September 8, 2026 at 11:01 PM EDT
Today's Outlook
Night
Overcast, with a low around 58°F15°C. Breezy from the SSW at 7 to 12 mph12 to 20 km/h. 70% chance of light rain in the evening.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Light Rain | High 78°F25°C | Low 58°F15°C | Precip 0.06 in1.6 mm70% | Cloud 98% | Wind SSW 7 mph11 km/h | Wednesday: Overcast and warm, with a high of 78°F25°C and morning low of 61°F16°C. Breezy from the S at 6 to 9 mph10 to 15 km/h. 11% chance of drizzle. Wednesday Night: Overcast, with a low around 58°F15°C. Breezy from the SSW at 7 to 12 mph12 to 20 km/h. 70% chance of light rain in the evening. | |
| Rain | High 86°F30°C | Low 71°F22°C | Precip 0.21 in5.3 mm95% | Cloud 69% | Wind WSW 11 mph18 km/h | Thursday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 72°F22°C. Breezy from the W at 11 to 13 mph18 to 21 km/h. 52% chance of showers in the morning. Thursday Night: Overcast, with a low around 71°F22°C. Breezy from the WSW at 11 to 14 mph18 to 22 km/h. 95% chance of rain overnight. | |
| Clear | High 75°F24°C | Low 58°F14°C | Precip 0 in0 mm— | Cloud 14% | Wind NW 7 mph11 km/h | Friday: Mostly clear and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the NW at 8 mph12 km/h. Dry air. Friday Night: Partly cloudy, with a low around 58°F14°C. Breezy from the NW at 6 to 7 mph9 to 11 km/h. | |
| Drizzle | High 76°F24°C | Low 51°F10°C | Precip 0.02 in0.5 mm18% | Cloud 61% | Wind S 5 mph8 km/h | Saturday: Mostly cloudy and warm, with a high of 76°F24°C and morning low of 56°F13°C. Light wind from the S around 4 mph7 km/h. Dry air. Saturday Night: Mostly cloudy, with a low around 51°F10°C. Breezy from the SSW at 5 to 7 mph9 to 12 km/h. 18% chance of drizzle in the evening. | |
| Rain | High 75°F24°C | Low 64°F18°C | Precip 0.39 in9.9 mm67% | Cloud 80% | Wind SSW 6 mph10 km/h | Sunday: Overcast and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 67% chance of rain throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 64°F18°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 61% chance of light rain throughout the night. | |
| Drizzle | High 75°F24°C | Low 59°F15°C | Precip 0.03 in0.7 mm12% | Cloud 34% | Wind NW 8 mph12 km/h | Monday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the NW at 8 to 9 mph13 to 15 km/h. Monday Night: Partly cloudy, with a low around 59°F15°C. Breezy from the NW at 7 mph11 km/h. 12% chance of drizzle overnight. | |
| Partly Cloudy | High 74°F23°C | Low 53°F12°C | Precip 0.01 in0.3 mm4% | Cloud 43% | Wind SSW 7 mph11 km/h | Tuesday: Partly cloudy and warm, with a high of 74°F23°C and morning low of 57°F14°C. Breezy from the S at 6 to 8 mph10 to 13 km/h. Tuesday Night: Partly cloudy, with a low around 53°F12°C. Breezy from the SW at 7 to 9 mph11 to 15 km/h. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdaySep 9 | 78°F25°C | 58°F15°C | 0.06 in1.6 mm· 70% | 98% | Light Rain | SSW 7 mph11 km/h | |
DayOvercast and warm, with a high of 78°F25°C and morning low of 61°F16°C. Breezy from the S at 6 to 9 mph10 to 15 km/h. 11% chance of drizzle. NightOvercast, with a low around 58°F15°C. Breezy from the SSW at 7 to 12 mph12 to 20 km/h. 70% chance of light rain in the evening. | |||||||
| ThursdaySep 10 | 86°F30°C | 71°F22°C | 0.21 in5.3 mm· 95% | 69% | Rain | WSW 11 mph18 km/h | |
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 72°F22°C. Breezy from the W at 11 to 13 mph18 to 21 km/h. 52% chance of showers in the morning. NightOvercast, with a low around 71°F22°C. Breezy from the WSW at 11 to 14 mph18 to 22 km/h. 95% chance of rain overnight. | |||||||
| FridaySep 11 | 75°F24°C | 58°F14°C | 0 in0 mm· — | 14% | Clear | NW 7 mph11 km/h | |
DayMostly clear and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the NW at 8 mph12 km/h. Dry air. NightPartly cloudy, with a low around 58°F14°C. Breezy from the NW at 6 to 7 mph9 to 11 km/h. | |||||||
| SaturdaySep 12 | 76°F24°C | 51°F10°C | 0.02 in0.5 mm· 18% | 61% | Drizzle | S 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 56°F13°C. Light wind from the S around 4 mph7 km/h. Dry air. NightMostly cloudy, with a low around 51°F10°C. Breezy from the SSW at 5 to 7 mph9 to 12 km/h. 18% chance of drizzle in the evening. | |||||||
| SundaySep 13 | 75°F24°C | 64°F18°C | 0.39 in9.9 mm· 67% | 80% | Rain | SSW 6 mph10 km/h | |
DayOvercast and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 67% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 64°F18°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 61% chance of light rain throughout the night. | |||||||
| MondaySep 14 | 75°F24°C | 59°F15°C | 0.03 in0.7 mm· 12% | 34% | Drizzle | NW 8 mph12 km/h | |
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the NW at 8 to 9 mph13 to 15 km/h. NightPartly cloudy, with a low around 59°F15°C. Breezy from the NW at 7 mph11 km/h. 12% chance of drizzle overnight. | |||||||
| TuesdaySep 15 | 74°F23°C | 53°F12°C | 0.01 in0.3 mm· 4% | 43% | Partly Cloudy | SSW 7 mph11 km/h | |
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 57°F14°C. Breezy from the S at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 53°F12°C. Breezy from the SW at 7 to 9 mph11 to 15 km/h. | |||||||
| WednesdaySep 16 | 81°F27°C | 64°F18°C | 0.05 in1.2 mm· 14% | 56% | Drizzle | WSW 7 mph12 km/h | |
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the WSW at 7 to 8 mph11 to 12 km/h. 14% chance of drizzle throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. | |||||||
| ThursdaySep 17 | 76°F24°C | 63°F17°C | 0.09 in2.2 mm· 18% | 63% | Drizzle | SW 6 mph9 km/h | |
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 64°F18°C. Light wind from the SE around 5 mph9 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 63°F17°C. Light wind from the WSW around 6 mph10 km/h. 16% chance of drizzle throughout the night. | |||||||
| FridaySep 18 | 77°F25°C | 64°F18°C | 0.15 in3.9 mm· 20% | 57% | Showers | WSW 8 mph12 km/h | |
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 65°F19°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the WSW at 7 to 8 mph12 to 12 km/h. 20% chance of showers throughout the night. | |||||||
| SaturdaySep 19 | 71°F22°C | 58°F14°C | 0.13 in3.3 mm· 17% | 50% | Showers | WNW 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 60°F16°C. Breezy from the WNW at 7 to 8 mph12 to 12 km/h. 17% chance of drizzle throughout the day. NightPartly cloudy, with a low around 58°F14°C. Breezy from the W at 7 mph11 km/h. 14% chance of showers throughout the night. | |||||||
| SundaySep 20 | 68°F20°C | 54°F12°C | 0.11 in2.7 mm· 18% | 52% | Showers | WNW 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 56°F13°C. Breezy from the WNW at 7 mph11 km/h. 18% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 54°F12°C. Breezy from the WNW at 6 to 7 mph10 to 11 km/h. 16% chance of showers throughout the night. | |||||||
| MondaySep 21 | 66°F19°C | 51°F11°C | 0.15 in3.9 mm· 18% | 53% | Showers | NW 6 mph10 km/h | |
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 53°F12°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. 18% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 51°F11°C. Light wind from the NW around 6 mph10 km/h. 17% chance of showers throughout the night. | |||||||
| TuesdaySep 22 | 67°F19°C | 50°F10°C | 0.13 in3.2 mm· 15% | 50% | Showers | NW 6 mph10 km/h | |
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 53°F11°C. Breezy from the NNW at 7 mph11 km/h. 15% chance of showers throughout the day. Dry air. NightPartly cloudy, with a low around 50°F10°C. Light wind from the WNW around 6 mph10 km/h. 13% chance of drizzle throughout the night. | |||||||
| WednesdaySep 23 | 68°F20°C | 51°F10°C | 0.09 in2.4 mm· 15% | 54% | Showers | NW 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 53°F12°C. Breezy from the NW at 7 mph11 km/h. 15% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 51°F10°C. Light wind from the WNW around 6 mph10 km/h. 14% chance of drizzle throughout the night. | |||||||
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Coordinates: 42.5998°N, 71.3673°W·Elevation: 75m·Timezone: America/New_York·Population: 33,925