Massachusetts, United States

Chelmsford · Hourly

Sunday, Oct 25 · America/New York

Hourly forecast

Local time in Chelmsford

Temperature · °C

1:00 AM GMT-4Today

0°0%1 km/h

Clear

Feels like: 0°
Humidity: 94%
Wind: NW 1 km/h
Gust: 8 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: -1°
Pressure: 1,035 hPa
Cloud cover: 0%
Visibility: 16 km
UV index: 0
US AQI: 56

2:00 AM GMT-4Today

2°0%5 km/h

Clear

Feels like: 0°
Humidity: 85%
Wind: W 5 km/h
Gust: 8 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: -1°
Pressure: 1,033 hPa
Cloud cover: 2%
Visibility: 18.4 km
UV index: 0
US AQI: 56

3:00 AM GMT-4Today

2°0%6 km/h

Clear

Feels like: 0°
Humidity: 84%
Wind: W 6 km/h
Gust: 8 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: -1°
Pressure: 1,034 hPa
Cloud cover: 2%
Visibility: 21.1 km
UV index: 0
US AQI: 57

4:00 AM GMT-4Today

1°0%6 km/h

Clear

Feels like: 0°
Humidity: 83%
Wind: W 6 km/h
Gust: 8 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: -2°
Pressure: 1,034 hPa
Cloud cover: 1%
Visibility: 22.8 km
UV index: 0
US AQI: 57

5:00 AM GMT-4Today

1°0%6 km/h

Clear

Feels like: -1°
Humidity: 83%
Wind: W 6 km/h
Gust: 8 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: -2°
Pressure: 1,034 hPa
Cloud cover: 1%
Visibility: 23.7 km
UV index: 0
US AQI: 58

6:00 AM GMT-4Today

1°0%6 km/h

Clear

Feels like: -1°
Humidity: 83%
Wind: W 6 km/h
Gust: 8 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: -2°
Pressure: 1,034 hPa
Cloud cover: 1%
Visibility: 24.5 km
UV index: 0
US AQI: 58

7:00 AM GMT-4Today

1°0%6 km/h

Clear

Feels like: -1°
Humidity: 82%
Wind: W 6 km/h
Gust: 7 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: -2°
Pressure: 1,034 hPa
Cloud cover: 1%
Visibility: 25.6 km
UV index: 0
US AQI: 58

8:00 AM GMT-4Today

1°0%5 km/h

Clear

Feels like: 0°
Humidity: 78%
Wind: W 5 km/h
Gust: 7 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: -2°
Pressure: 1,034 hPa
Cloud cover: 1%
Visibility: 26.4 km
UV index: 1
US AQI: 58

9:00 AM GMT-4Today

5°0%4 km/h

Clear

Feels like: 5°
Humidity: 68%
Wind: W 4 km/h
Gust: 7 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: -1°
Pressure: 1,034 hPa
Cloud cover: 1%
Visibility: 28.1 km
UV index: 3
US AQI: 58

10:00 AM GMT-4Today

10°0%4 km/h

Clear

Feels like: 10°
Humidity: 55%
Wind: W 4 km/h
Gust: 7 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,034 hPa
Cloud cover: 0%
Visibility: 31.6 km
UV index: 4
US AQI: 59

11:00 AM GMT-4Today

13°0%4 km/h

Clear

Feels like: 13°
Humidity: 44%
Wind: WSW 4 km/h
Gust: 8 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,034 hPa
Cloud cover: 1%
Visibility: 35.2 km
UV index: 5
US AQI: 60

12:00 PM GMT-4Today

15°0%5 km/h

Clear

Feels like: 15°
Humidity: 37%
Wind: WSW 5 km/h
Gust: 9 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,033 hPa
Cloud cover: 1%
Visibility: 37.7 km
UV index: 6
US AQI: 61

1:00 PM GMT-4Today

17°0%6 km/h

Clear

Feels like: 17°
Humidity: 33%
Wind: SW 6 km/h
Gust: 11 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,033 hPa
Cloud cover: 2%
Visibility: 39.4 km
UV index: 6
US AQI: 62

2:00 PM GMT-4Today

18°0%7 km/h

Clear

Feels like: 18°
Humidity: 31%
Wind: SW 7 km/h
Gust: 12 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,032 hPa
Cloud cover: 2%
Visibility: 40.1 km
UV index: 5
US AQI: 63

3:00 PM GMT-4Today

18°0%8 km/h

Clear

Feels like: 18°
Humidity: 32%
Wind: SW 8 km/h
Gust: 12 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,031 hPa
Cloud cover: 2%
Visibility: 38.8 km
UV index: 4
US AQI: 63

4:00 PM GMT-4Today

18°0%8 km/h

Clear

Feels like: 18°
Humidity: 36%
Wind: SSW 8 km/h
Gust: 13 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 2°
Pressure: 1,031 hPa
Cloud cover: 1%
Visibility: 36.7 km
UV index: 3
US AQI: 65

5:00 PM GMT-4Today

16°0%8 km/h

Clear

Feels like: 16°
Humidity: 42%
Wind: SSW 8 km/h
Gust: 13 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 3°
Pressure: 1,030 hPa
Cloud cover: 1%
Visibility: 34.9 km
UV index: 1
US AQI: 66

6:00 PM GMT-4Today

13°0%8 km/h

Clear

Feels like: 13°
Humidity: 49%
Wind: SSW 8 km/h
Gust: 13 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 2°
Pressure: 1,030 hPa
Cloud cover: 1%
Visibility: 33 km
UV index: 0
US AQI: 66

7:00 PM GMT-4Today

11°0%8 km/h

Clear

Feels like: 11°
Humidity: 55%
Wind: SW 8 km/h
Gust: 13 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 2°
Pressure: 1,030 hPa
Cloud cover: 0%
Visibility: 30.7 km
UV index: 0
US AQI: 66

8:00 PM GMT-4Today

9°0%8 km/h

Clear

Feels like: 8°
Humidity: 61%
Wind: SW 8 km/h
Gust: 14 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 2°
Pressure: 1,029 hPa
Cloud cover: 0%
Visibility: 28.8 km
UV index: 0
US AQI: 66

9:00 PM GMT-4Today

8°0%8 km/h

Clear

Feels like: 7°
Humidity: 67%
Wind: SW 8 km/h
Gust: 15 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 2°
Pressure: 1,029 hPa
Cloud cover: 0%
Visibility: 27.4 km
UV index: 0
US AQI: 66

10:00 PM GMT-4Today

7°0%9 km/h

Clear

Feels like: 6°
Humidity: 71%
Wind: SW 9 km/h
Gust: 16 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 2°
Pressure: 1,029 hPa
Cloud cover: 1%
Visibility: 26.3 km
UV index: 0
US AQI: 66

11:00 PM GMT-4Today

6°0%9 km/h

Clear

Feels like: 5°
Humidity: 74%
Wind: SW 9 km/h
Gust: 17 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 2°
Pressure: 1,028 hPa
Cloud cover: 1%
Visibility: 25.6 km
UV index: 0
US AQI: 65

12:00 AM GMT-4Tomorrow

6°0%9 km/h

Clear

Feels like: 4°
Humidity: 76%
Wind: SW 9 km/h
Gust: 17 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 1°
Pressure: 1,027 hPa
Cloud cover: 1%
Visibility: 25.5 km
UV index: 0
US AQI: 64

1:00 AM GMT-4Tomorrow

5°0%9 km/h

Clear

Feels like: 3°
Humidity: 77%
Wind: SW 9 km/h
Gust: 17 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 1°
Pressure: 1,027 hPa
Cloud cover: 1%
Visibility: 25.4 km
UV index: 0
US AQI: 62

2:00 AM GMT-4Tomorrow

5°0%9 km/h

Clear

Feels like: 3°
Humidity: 79%
Wind: SW 9 km/h
Gust: 17 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 1°
Pressure: 1,026 hPa
Cloud cover: 1%
Visibility: 25 km
UV index: 0
US AQI: 61

3:00 AM GMT-4Tomorrow

4°0%8 km/h

Clear

Feels like: 2°
Humidity: 80%
Wind: WSW 8 km/h
Gust: 17 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 1°
Pressure: 1,026 hPa
Cloud cover: 4%
Visibility: 24.3 km
UV index: 0
US AQI: 59

4:00 AM GMT-4Tomorrow

4°0%8 km/h

Clear

Feels like: 2°
Humidity: 81%
Wind: WSW 8 km/h
Gust: 16 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 1°
Pressure: 1,025 hPa
Cloud cover: 8%
Visibility: 23.8 km
UV index: 0
US AQI: 58

5:00 AM GMT-4Tomorrow

4°0%8 km/h

Clear

Feels like: 1°
Humidity: 82%
Wind: WSW 8 km/h
Gust: 16 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,025 hPa
Cloud cover: 8%
Visibility: 23.5 km
UV index: 0
US AQI: 57

6:00 AM GMT-4Tomorrow

3°0%8 km/h

Clear

Feels like: 1°
Humidity: 82%
Wind: WSW 8 km/h
Gust: 17 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,024 hPa
Cloud cover: 5%
Visibility: 23.3 km
UV index: 0
US AQI: 57

7:00 AM GMT-4Tomorrow

3°0%8 km/h

Clear

Feels like: 1°
Humidity: 82%
Wind: WSW 8 km/h
Gust: 17 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,024 hPa
Cloud cover: 4%
Visibility: 23.3 km
UV index: 0
US AQI: 57

8:00 AM GMT-4Tomorrow

4°0%8 km/h

Clear

Feels like: 2°
Humidity: 78%
Wind: WSW 8 km/h
Gust: 17 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 0°
Pressure: 1,024 hPa
Cloud cover: 6%
Visibility: 24.6 km
UV index: 1
US AQI: 57

9:00 AM GMT-4Tomorrow

8°0%8 km/h

Clear

Feels like: 6°
Humidity: 68%
Wind: WSW 8 km/h
Gust: 17 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 2°
Pressure: 1,023 hPa
Cloud cover: 9%
Visibility: 27.9 km
UV index: 2
US AQI: 57

10:00 AM GMT-4Tomorrow

12°0%9 km/h

Clear

Feels like: 12°
Humidity: 57%
Wind: WSW 9 km/h
Gust: 18 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 3°
Pressure: 1,023 hPa
Cloud cover: 16%
Visibility: 31.9 km
UV index: 4
US AQI: 57

11:00 AM GMT-4Tomorrow

15°0%10 km/h

Partly cloudy

Feels like: 15°
Humidity: 49%
Wind: W 10 km/h
Gust: 19 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 3°
Pressure: 1,022 hPa
Cloud cover: 21%
Visibility: 33.5 km
UV index: 5
US AQI: 57

12:00 PM GMT-4Tomorrow

17°0%10 km/h

Clear

Feels like: 17°
Humidity: 44%
Wind: W 10 km/h
Gust: 20 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 4°
Pressure: 1,021 hPa
Cloud cover: 19%
Visibility: 32.7 km
UV index: 5
US AQI: 57

1:00 PM GMT-4Tomorrow

19°0%11 km/h

Clear

Feels like: 19°
Humidity: 41%
Wind: W 11 km/h
Gust: 21 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 5°
Pressure: 1,020 hPa
Cloud cover: 13%
Visibility: 32.9 km
UV index: 5
US AQI: 56

2:00 PM GMT-4Tomorrow

20°0%12 km/h

Clear

Feels like: 20°
Humidity: 39%
Wind: W 12 km/h
Gust: 23 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 5°
Pressure: 1,019 hPa
Cloud cover: 8%
Visibility: 33.8 km
UV index: 5
US AQI: 56

3:00 PM GMT-4Tomorrow

20°0%12 km/h

Clear

Feels like: 20°
Humidity: 40%
Wind: W 12 km/h
Gust: 24 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 6°
Pressure: 1,019 hPa
Cloud cover: 6%
Visibility: 33.5 km
UV index: 4
US AQI: 56

4:00 PM GMT-4Tomorrow

20°0%12 km/h

Clear

Feels like: 20°
Humidity: 44%
Wind: W 12 km/h
Gust: 24 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 6°
Pressure: 1,018 hPa
Cloud cover: 6%
Visibility: 31.8 km
UV index: 3
US AQI: 56

5:00 PM GMT-4Tomorrow

19°0%10 km/h

Clear

Feels like: 19°
Humidity: 49%
Wind: W 10 km/h
Gust: 24 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 7°
Pressure: 1,018 hPa
Cloud cover: 7%
Visibility: 28.8 km
UV index: 1
US AQI: 55

6:00 PM GMT-4Tomorrow

17°0%10 km/h

Clear

Feels like: 17°
Humidity: 56%
Wind: W 10 km/h
Gust: 24 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 8°
Pressure: 1,019 hPa
Cloud cover: 11%
Visibility: 25.6 km
UV index: 0
US AQI: 55

7:00 PM GMT-4Tomorrow

15°0%10 km/h

Clear

Feels like: 15°
Humidity: 63%
Wind: WNW 10 km/h
Gust: 23 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 8°
Pressure: 1,019 hPa
Cloud cover: 16%
Visibility: 23.2 km
UV index: 0
US AQI: 54

8:00 PM GMT-4Tomorrow

14°0%9 km/h

Clear

Feels like: 14°
Humidity: 69%
Wind: WNW 9 km/h
Gust: 21 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 8°
Pressure: 1,019 hPa
Cloud cover: 20%
Visibility: 21.4 km
UV index: 0
US AQI: 54

9:00 PM GMT-4Tomorrow

13°0%9 km/h

Partly cloudy

Feels like: 13°
Humidity: 72%
Wind: WNW 9 km/h
Gust: 19 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 8°
Pressure: 1,020 hPa
Cloud cover: 22%
Visibility: 20.1 km
UV index: 0
US AQI: 54

10:00 PM GMT-4Tomorrow

12°0%9 km/h

Partly cloudy

Feels like: 12°
Humidity: 75%
Wind: NW 9 km/h
Gust: 20 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 8°
Pressure: 1,020 hPa
Cloud cover: 22%
Visibility: 19.6 km
UV index: 0
US AQI: 54

11:00 PM GMT-4Tomorrow

11°0%11 km/h

Partly cloudy

Feels like: 11°
Humidity: 76%
Wind: NW 11 km/h
Gust: 24 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 7°
Pressure: 1,021 hPa
Cloud cover: 21%
Visibility: 19.5 km
UV index: 0
US AQI: 54

12:00 AM GMT-4Tue

10°0%12 km/h

Clear

Feels like: 10°
Humidity: 75%
Wind: NNW 12 km/h
Gust: 28 km/h
Precipitation: 0 mm
Precipitation probability: 0%
Dew point: 6°
Pressure: 1,021 hPa
Cloud cover: 20%
Visibility: 19.5 km
UV index: 0
US AQI: 54