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Current weather in Lexington is clear sky.

Where can I find the hourly weather forecast for Lexington?

This page shows hourly weather forecast for Lexington, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Lexington updated regularly?

Weather data for Lexington is updated regularly with the latest available observations and forecasts.

Now · 9:21 AM

Lexington Weather & Hourly Forecast

United States · Massachusetts · 02421

64°F

Sunny

Feels like: 63°F

💧 Humidity 59% 🌡 Pressure 30.15 inHg 💨 Wind 2 mph 👁 Visibility 27.1 mi ☁ Clouds 0% ☀️ UV index 1.6 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Lexington

Today

10:00 AM

Sunny

68° 💧 None 💨 3 mph H 49%30.15 inHg

1:00 PM

Sunny

75° 💧 None 💨 4 mph H 38%30.12 inHg

4:00 PM

Overcast

76° 💧 None 💨 5 mph H 45%30.09 inHg

7:00 PM

Mostly cloudy

71° 💧 None 💨 8 mph H 48%30.06 inHg

10:00 PM

Partly cloudy night

64° 💧 None 💨 6 mph H 69%30.09 inHg

Tomorrow

1:00 AM

Mostly cloudy night

61° 💧 None 💨 5 mph H 84%30.06 inHg

4:00 AM

Overcast night

62° 💧 None 💨 4 mph H 95%30.03 inHg

7:00 AM

Overcast

64° 💧 0.012 in 💨 5 mph H 95%30.00 inHg

10:00 AM

Light rain

67° 💧 0.319 in 💨 5 mph H 95%29.97 inHg

1:00 PM

Severe thunderstorms

68° 💧 1.709 in 💨 6 mph H 98%29.91 inHg

4:00 PM

Light rain

71° 💧 0.046 in 💨 5 mph H 96%29.83 inHg

7:00 PM

Partly cloudy night

71° 💧 0.000 in 💨 3 mph H 95%29.80 inHg

10:00 PM

Fog at night

67° 💧 None 💨 2 mph H 99%29.83 inHg

Monday

1:00 AM

Fog at night

67° 💧 None 💨 6 mph H 99%29.80 inHg

4:00 AM

Partly cloudy night

68° 💧 None 💨 8 mph H 96%29.80 inHg

7:00 AM

Light rain

65° 💧 0.054 in 💨 8 mph H 94%29.85 inHg

Today

10:00 AM

Sunny

68° 💧 None 💨 3 mph H 49%30.15 inHg

11:00 AM

Sunny

71° 💧 None 💨 3 mph H 41%30.15 inHg

12:00 PM

Sunny

74° 💧 None 💨 3 mph H 38%30.15 inHg

1:00 PM

Sunny

75° 💧 None 💨 4 mph H 38%30.12 inHg

2:00 PM

Partly cloudy

76° 💧 None 💨 5 mph H 40%30.12 inHg

3:00 PM

Mostly cloudy

76° 💧 None 💨 5 mph H 42%30.09 inHg

4:00 PM

Overcast

76° 💧 None 💨 5 mph H 45%30.09 inHg

5:00 PM

Overcast

75° 💧 None 💨 4 mph H 48%30.09 inHg

6:00 PM

Overcast

74° 💧 None 💨 4 mph H 49%30.06 inHg

7:00 PM

Mostly cloudy

71° 💧 None 💨 8 mph H 48%30.06 inHg

8:00 PM

Mostly clear night

68° 💧 None 💨 8 mph H 56%30.09 inHg

9:00 PM

Mostly cloudy night

67° 💧 None 💨 7 mph H 64%30.09 inHg

10:00 PM

Partly cloudy night

64° 💧 None 💨 6 mph H 69%30.09 inHg

11:00 PM

Partly cloudy night

63° 💧 None 💨 6 mph H 75%30.09 inHg

Tomorrow

12:00 AM

Partly cloudy night

62° 💧 None 💨 5 mph H 80%30.09 inHg

1:00 AM

Mostly cloudy night

61° 💧 None 💨 5 mph H 84%30.06 inHg

2:00 AM

Partly cloudy night

62° 💧 None 💨 5 mph H 88%30.06 inHg

3:00 AM

Overcast night

62° 💧 None 💨 4 mph H 93%30.03 inHg

4:00 AM

Overcast night

62° 💧 None 💨 4 mph H 95%30.03 inHg

5:00 AM

Overcast night

63° 💧 None 💨 4 mph H 96%30.00 inHg

6:00 AM

Overcast night

63° 💧 None 💨 4 mph H 96%30.00 inHg

7:00 AM

Overcast

64° 💧 None 💨 5 mph H 95%30.00 inHg

8:00 AM

Overcast

66° 💧 0.000 in 💨 4 mph H 90%30.00 inHg

9:00 AM

Light rain

67° 💧 0.012 in 💨 5 mph H 89%29.97 inHg

10:00 AM

Light rain

67° 💧 0.055 in 💨 5 mph H 95%29.97 inHg

11:00 AM

Light rain

68° 💧 0.082 in 💨 6 mph H 97%29.97 inHg

12:00 PM

Moderate rain

69° 💧 0.182 in 💨 6 mph H 98%29.94 inHg

1:00 PM

Severe thunderstorms

68° 💧 0.547 in 💨 6 mph H 98%29.91 inHg

2:00 PM

Severe thunderstorms

69° 💧 0.833 in 💨 6 mph H 98%29.88 inHg

3:00 PM

Severe thunderstorms

69° 💧 0.329 in 💨 4 mph H 99%29.85 inHg

4:00 PM

Light rain

71° 💧 0.039 in 💨 5 mph H 96%29.83 inHg

5:00 PM

Light rain

72° 💧 0.006 in 💨 4 mph H 92%29.80 inHg

6:00 PM

Overcast

72° 💧 0.001 in 💨 5 mph H 93%29.80 inHg

7:00 PM

Partly cloudy night

71° 💧 0.000 in 💨 3 mph H 95%29.80 inHg

8:00 PM

Clear night

69° 💧 None 💨 1 mph H 97%29.80 inHg

9:00 PM

Clear night

68° 💧 None 💨 1 mph H 99%29.83 inHg

10:00 PM

Fog at night

67° 💧 None 💨 2 mph H 99%29.83 inHg

11:00 PM

Fog at night

66° 💧 None 💨 4 mph H 100%29.83 inHg

Monday

12:00 AM

Fog at night

66° 💧 None 💨 5 mph H 100%29.80 inHg

1:00 AM

Fog at night

67° 💧 None 💨 6 mph H 99%29.80 inHg

2:00 AM

Clear night

67° 💧 None 💨 7 mph H 98%29.77 inHg

3:00 AM

Mostly cloudy night

68° 💧 None 💨 8 mph H 97%29.77 inHg

4:00 AM

Partly cloudy night

68° 💧 None 💨 8 mph H 96%29.80 inHg

5:00 AM

Overcast night

67° 💧 None 💨 8 mph H 94%29.83 inHg

6:00 AM

Overcast night

67° 💧 None 💨 7 mph H 93%29.83 inHg

7:00 AM

Light rain

65° 💧 0.052 in 💨 8 mph H 94%29.85 inHg

8:00 AM

Mostly sunny

66° 💧 0.002 in 💨 4 mph H 93%29.88 inHg

9:00 AM

Sunny

68° 💧 None 💨 6 mph H 86%29.88 inHg

10:00 AM

Sunny

70° 💧 None 💨 10 mph H 68%29.91 inHg

11:00 AM

Sunny

72° 💧 None 💨 10 mph H 60%29.91 inHg

12:00 PM

Sunny

73° 💧 None 💨 10 mph H 55%29.91 inHg

1:00 PM

Sunny

74° 💧 None 💨 11 mph H 50%29.91 inHg

2:00 PM

Sunny

73° 💧 None 💨 11 mph H 51%29.91 inHg

3:00 PM

Sunny

73° 💧 None 💨 11 mph H 51%29.94 inHg

4:00 PM

Sunny

72° 💧 None 💨 11 mph H 50%29.94 inHg

5:00 PM

Sunny

71° 💧 None 💨 10 mph H 52%29.97 inHg

6:00 PM

Sunny

68° 💧 None 💨 9 mph H 54%30.00 inHg

7:00 PM

Clear night

65° 💧 None 💨 9 mph H 56%30.06 inHg

8:00 PM

Clear night

63° 💧 None 💨 8 mph H 58%30.09 inHg

Tuesday

5:00 AM

Clear night

50° 💧 None 💨 4 mph H 83%30.30 inHg

8:00 AM

Sunny

55° 💧 None 💨 4 mph H 81%30.36 inHg

11:00 AM

Sunny

64° 💧 None 💨 4 mph H 54%30.39 inHg

2:00 PM

Sunny

67° 💧 None 💨 4 mph H 58%30.36 inHg

5:00 PM

Partly cloudy

65° 💧 None 💨 4 mph H 66%30.36 inHg

8:00 PM

Clear night

58° 💧 None 💨 6 mph H 82%30.36 inHg

11:00 PM

Clear night

55° 💧 None 💨 5 mph H 86%30.36 inHg

Wednesday

2:00 AM

Clear night

54° 💧 None 💨 5 mph H 92%30.36 inHg

5:00 AM

Clear night

54° 💧 None 💨 5 mph H 94%30.36 inHg

8:00 AM

Sunny

58° 💧 None 💨 5 mph H 89%30.39 inHg

11:00 AM

Mostly sunny

69° 💧 None 💨 7 mph H 68%30.36 inHg

2:00 PM

Mostly sunny

75° 💧 None 💨 6 mph H 62%30.30 inHg

5:00 PM

Partly cloudy

75° 💧 None 💨 6 mph H 66%30.27 inHg

8:00 PM

Mostly clear night

69° 💧 None 💨 6 mph H 85%30.30 inHg

11:00 PM

Overcast night

67° 💧 None 💨 5 mph H 90%30.30 inHg

Thursday

2:00 AM

Mostly cloudy night

65° 💧 None 💨 5 mph H 90%30.27 inHg

5:00 AM

Overcast night

65° 💧 None 💨 5 mph H 92%30.27 inHg

8:00 AM

Overcast

66° 💧 None 💨 4 mph H 90%30.27 inHg

11:00 AM

Overcast

71° 💧 None 💨 3 mph H 82%30.27 inHg

2:00 PM

Overcast

74° 💧 None 💨 6 mph H 77%30.21 inHg

5:00 PM

Overcast

73° 💧 None 💨 3 mph H 87%30.18 inHg

8:00 PM

Overcast night

71° 💧 None 💨 5 mph H 92%30.18 inHg

11:00 PM

Light rain

69° 💧 None 💨 6 mph H 94%30.18 inHg

Friday

2:00 AM

Overcast night

67° 💧 None 💨 4 mph H 96%30.12 inHg

8:00 AM

Partly cloudy

69° 💧 None 💨 7 mph H 85%30.09 inHg

2:00 PM

Partly cloudy

71° 💧 None 💨 4 mph H 86%30.12 inHg

8:00 PM

Overcast night

77° 💧 None 💨 4 mph H 73%30.09 inHg

Saturday

2:00 AM

Overcast night

67° 💧 None 💨 5 mph H 89%30.06 inHg

8:00 AM

Moderate rain

65° 💧 None 💨 4 mph H 99%30.03 inHg

2:00 PM

Light rain

64° 💧 None 💨 7 mph H 98%30.03 inHg

8:00 PM

Light rain

67° 💧 None 💨 11 mph H 85%29.97 inHg

Sunday

2:00 AM

Light rain

64° 💧 None 💨 10 mph H 99%29.91 inHg

8:00 AM

Overcast

64° 💧 None 💨 5 mph H 99%29.83 inHg

2:00 PM

Overcast

63° 💧 None 💨 1 mph H 99%29.77 inHg

8:00 PM

Mostly cloudy night

84° 💧 None 💨 14 mph H 66%29.59 inHg

Monday

2:00 AM

Partly cloudy night

66° 💧 None 💨 11 mph H 89%29.68 inHg

8:00 AM

Mostly sunny

57° 💧 None 💨 7 mph H 83%29.80 inHg

2:00 PM

Mostly sunny

58° 💧 None 💨 7 mph H 81%29.91 inHg

8:00 PM

Mostly clear night

66° 💧 None 💨 10 mph H 52%29.97 inHg

Tuesday

2:00 AM

Mostly clear night

56° 💧 None 💨 6 mph H 68%30.12 inHg

8:00 AM

Overcast

50° 💧 None 💨 5 mph H 85%30.24 inHg

2:00 PM

Overcast

53° 💧 None 💨 6 mph H 86%30.30 inHg

8:00 PM

Overcast night

63° 💧 None 💨 8 mph H 56%30.30 inHg

Wednesday

2:00 AM

Overcast night

56° 💧 None 💨 5 mph H 76%30.30 inHg

8:00 AM

Overcast

55° 💧 None 💨 6 mph H 81%30.24 inHg

2:00 PM

Partly cloudy

54° 💧 None 💨 7 mph H 87%30.30 inHg

8:00 PM

Overcast night

65° 💧 None 💨 6 mph H 60%30.30 inHg

Thursday

2:00 AM

Overcast night

55° 💧 None 💨 5 mph H 85%30.33 inHg

8:00 AM

Overcast

53° 💧 None 💨 4 mph H 94%30.36 inHg

2:00 PM

Mostly cloudy

56° 💧 None 💨 7 mph H 90%30.39 inHg

8:00 PM

Overcast night

65° 💧 None 💨 7 mph H 60%30.39 inHg

Friday

2:00 AM

Overcast night

57° 💧 None 💨 4 mph H 88%30.42 inHg

8:00 AM

Sunny

52° 💧 None 💨 5 mph H 97%30.39 inHg

2:00 PM

Overcast

52° 💧 None 💨 5 mph H 99%30.39 inHg

8:00 PM

Overcast night

65° 💧 None 💨 6 mph H 53%30.33 inHg

Saturday

2:00 AM

Partly cloudy night

55° 💧 None 💨 3 mph H 85%30.30 inHg

8:00 AM

Overcast

50° 💧 None 💨 3 mph H 96%30.24 inHg

2:00 PM

Overcast

52° 💧 None 💨 2 mph H 90%30.18 inHg

8:00 PM

Overcast night

66° 💧 None 💨 5 mph H 60%30.06 inHg

Sunday

2:00 AM

Clear night

55° 💧 None 💨 5 mph H 85%30.00 inHg

In Lexington and, more broadly, across the state of Massachusetts: This morning will start with a mix of sun and clouds, and temperatures are expected to be mild, ranging from around 52 to the low 70s. Winds will be light, coming from the south at speeds up to 9 mph, with occasional gusts reaching 19 mph. As the day progresses into the afternoon, the sky will continue to feature a blend of sun and clouds, and temperatures will climb to a high near 77 degrees. There is no precipitation expected throughout the day, making for generally pleasant weather. Winds will remain light, maintaining a southward direction with similar speeds as in the morning. Overall, it looks like a mild and mostly clear day with comfortable temperatures and gentle breezes.

15-Day Weather Outlook for Lexington

TomorrowTomorrow

Severe thunderstorms 72°/61° 💧 None 💨 8 mph

Monday, Sep 14Mon Sep 14

Mostly cloudy 74°/65° 💧 None 💨 11 mph

Tuesday, Sep 15Tue Sep 15

Partly cloudy 67°/50° 💧 1.873 in 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 75°/54° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Overcast 74°/65° 💧 0.044 in 💨 6 mph

Friday, Sep 18Fri Sep 18

Light rain 71°/67° 💧 0.019 in 💨 7 mph

Saturday, Sep 19Sat Sep 19

Moderate rain 77°/64° 💧 0.372 in 💨 7 mph

Sunday, Sep 20Sun Sep 20

Light rain 67°/63° 💧 0.283 in 💨 11 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 84°/57° 💧 0.241 in 💨 14 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 66°/50° 💧 None 💨 10 mph

Wednesday, Sep 23Wed Sep 23

Overcast 63°/54° 💧 0.001 in 💨 8 mph

Thursday, Sep 24Thu Sep 24

Overcast 65°/53° 💧 0.002 in 💨 7 mph

Friday, Sep 25Fri Sep 25

Overcast 65°/52° 💧 0.001 in 💨 7 mph

Saturday, Sep 26Sat Sep 26

Overcast 65°/50° 💧 None 💨 6 mph

Sunday, Sep 27Sun Sep 27

Overcast 66°/55° 💧 0.001 in 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Lexington

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Lexington

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 AM

PM2.5 Fine particles Good 2,6µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 3,6µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 47,6µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 6,1µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Lexington

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,2High 😊Good

Tomorrow UV 2,8Low 🙂Fair

Monday UV 5,6Moderate 🙂Fair

Tuesday UV 5,0Moderate 🙂Fair

Wednesday UV 7,0High 😊Good

Thursday UV 7,0High —Unavailable

Friday UV 5,0Moderate —Unavailable

Hourly UV index today

10:00 AMUV 3,2 11:00 AMUV 4,8 12:00 PMUV 5,9 1:00 PMUV 6,2 2:00 PMUV 5,3 3:00 PMUV 3,8 4:00 PMUV 2,2 5:00 PMUV 0,9 6:00 PMUV 0,2 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Lexington

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · LEXINGTON, MASSACHUSETTS

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 11:00 PM–12:00 AM.

73/100Best-hour score

BEST TIME TONIGHT 11:00 PM–12:00 AM Astronomical darkness: 8:36 PM–4:46 AM

☁ Cloud cover 38% Real hourly forecast for the best viewing hour.

☾ Moonlight 2% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 31° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min47%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Lexington were last refreshed today at 9:21 AM. The current forecast period extends through 14/09/2026 at 7:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.