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Current weather in St. Leonard is few clouds.

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

Now · 9:14 PM

St. Leonard Weather & Hourly Forecast

United States · Maryland · 20685

78°F

Mostly clear night

Feels like: 80°F

💧 Humidity 86% 🌡 Pressure 30.09 inHg 💨 Wind 9 mph 👁 Visibility 6.2 mi ☁ Clouds 24% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:33 AM 🌇 Sunset 7:39 PM

Hourly Forecast for St. Leonard

Today

10:00 PM

Mostly clear night

78° 💧 None 💨 9 mph H 86%30.09 inHg

Tomorrow

1:00 AM

Mostly clear night

74° 💧 None 💨 7 mph H 88%30.06 inHg

4:00 AM

Partly cloudy night

73° 💧 None 💨 6 mph H 89%30.06 inHg

7:00 AM

Mostly cloudy

74° 💧 None 💨 4 mph H 81%30.06 inHg

10:00 AM

Mostly cloudy

80° 💧 None 💨 3 mph H 59%30.09 inHg

1:00 PM

Partly cloudy

86° 💧 0.01 in 💨 3 mph H 52%30.06 inHg

4:00 PM

Partly cloudy

87° 💧 0.00 in 💨 6 mph H 63%30.03 inHg

7:00 PM

Partly cloudy

81° 💧 0.04 in 💨 4 mph H 75%30.03 inHg

10:00 PM

Light rain

73° 💧 0.01 in 💨 5 mph H 93%30.06 inHg

Tuesday

1:00 AM

Overcast night

73° 💧 None 💨 2 mph H 87%30.03 inHg

4:00 AM

Mostly cloudy night

73° 💧 None 💨 5 mph H 92%30.00 inHg

7:00 AM

Mostly cloudy

75° 💧 None 💨 5 mph H 92%30.00 inHg

10:00 AM

Mostly cloudy

82° 💧 None 💨 4 mph H 69%30.03 inHg

1:00 PM

Mostly cloudy

90° 💧 None 💨 3 mph H 44%30.00 inHg

4:00 PM

Partly cloudy

94° 💧 None 💨 1 mph H 42%29.94 inHg

7:00 PM

Light rain

79° 💧 0.02 in 💨 3 mph H 77%29.97 inHg

Today

10:00 PM

Mostly clear night

78° 💧 None 💨 9 mph H 86%30.09 inHg

11:00 PM

Partly cloudy night

77° 💧 None 💨 9 mph H 86%30.09 inHg

Tomorrow

12:00 AM

Partly cloudy night

76° 💧 None 💨 9 mph H 86%30.06 inHg

1:00 AM

Mostly clear night

74° 💧 None 💨 7 mph H 88%30.06 inHg

2:00 AM

Partly cloudy night

74° 💧 None 💨 7 mph H 90%30.06 inHg

3:00 AM

Mostly clear night

73° 💧 None 💨 7 mph H 90%30.06 inHg

4:00 AM

Partly cloudy night

73° 💧 None 💨 6 mph H 89%30.06 inHg

5:00 AM

Partly cloudy night

73° 💧 None 💨 6 mph H 86%30.06 inHg

6:00 AM

Mostly cloudy night

73° 💧 None 💨 4 mph H 83%30.06 inHg

7:00 AM

Mostly cloudy

74° 💧 None 💨 4 mph H 81%30.06 inHg

8:00 AM

Mostly cloudy

76° 💧 None 💨 3 mph H 75%30.09 inHg

9:00 AM

Overcast

78° 💧 None 💨 4 mph H 66%30.09 inHg

10:00 AM

Mostly cloudy

80° 💧 None 💨 3 mph H 59%30.09 inHg

11:00 AM

Mostly cloudy

81° 💧 None 💨 2 mph H 55%30.09 inHg

12:00 PM

Mostly cloudy

83° 💧 None 💨 2 mph H 53%30.09 inHg

1:00 PM

Partly cloudy

86° 💧 None 💨 3 mph H 52%30.06 inHg

2:00 PM

Partly cloudy

86° 💧 None 💨 6 mph H 54%30.06 inHg

3:00 PM

Light rain

87° 💧 0.01 in 💨 8 mph H 59%30.03 inHg

4:00 PM

Partly cloudy

87° 💧 None 💨 6 mph H 63%30.03 inHg

5:00 PM

Light rain

86° 💧 0.00 in 💨 5 mph H 62%30.03 inHg

6:00 PM

Partly cloudy

84° 💧 None 💨 5 mph H 67%30.03 inHg

7:00 PM

Partly cloudy

81° 💧 None 💨 4 mph H 75%30.03 inHg

8:00 PM

Light rain

78° 💧 0.01 in 💨 1 mph H 83%30.03 inHg

9:00 PM

Light rain

74° 💧 0.03 in 💨 8 mph H 92%30.06 inHg

10:00 PM

Light rain

73° 💧 0.01 in 💨 5 mph H 93%30.06 inHg

11:00 PM

Overcast night

72° 💧 None 💨 1 mph H 88%30.06 inHg

Tuesday

12:00 AM

Overcast night

72° 💧 None 💨 2 mph H 89%30.03 inHg

1:00 AM

Overcast night

73° 💧 None 💨 2 mph H 87%30.03 inHg

2:00 AM

Overcast night

73° 💧 None 💨 4 mph H 89%30.03 inHg

3:00 AM

Overcast night

73° 💧 None 💨 5 mph H 91%30.03 inHg

4:00 AM

Mostly cloudy night

73° 💧 None 💨 5 mph H 92%30.00 inHg

5:00 AM

Mostly cloudy night

73° 💧 None 💨 5 mph H 92%30.00 inHg

6:00 AM

Mostly cloudy night

73° 💧 None 💨 5 mph H 92%30.00 inHg

7:00 AM

Mostly cloudy

75° 💧 None 💨 5 mph H 92%30.00 inHg

8:00 AM

Mostly cloudy

77° 💧 None 💨 4 mph H 89%30.03 inHg

9:00 AM

Overcast

79° 💧 None 💨 4 mph H 83%30.03 inHg

10:00 AM

Mostly cloudy

82° 💧 None 💨 4 mph H 69%30.03 inHg

11:00 AM

Mostly cloudy

85° 💧 None 💨 3 mph H 60%30.03 inHg

12:00 PM

Mostly cloudy

88° 💧 None 💨 3 mph H 52%30.03 inHg

1:00 PM

Mostly cloudy

90° 💧 None 💨 3 mph H 44%30.00 inHg

2:00 PM

Partly cloudy

92° 💧 None 💨 2 mph H 41%29.97 inHg

3:00 PM

Partly cloudy

95° 💧 None 💨 1 mph H 41%29.97 inHg

4:00 PM

Partly cloudy

94° 💧 None 💨 1 mph H 42%29.94 inHg

5:00 PM

Mostly cloudy

92° 💧 None 💨 1 mph H 48%29.94 inHg

6:00 PM

Mostly cloudy

83° 💧 None 💨 3 mph H 66%29.94 inHg

7:00 PM

Light rain

79° 💧 0.01 in 💨 3 mph H 77%29.97 inHg

8:00 PM

Light rain

79° 💧 0.00 in 💨 4 mph H 78%29.97 inHg

9:00 PM

Light rain

77° 💧 0.01 in 💨 6 mph H 82%29.97 inHg

10:00 PM

Overcast night

76° 💧 None 💨 6 mph H 83%30.00 inHg

11:00 PM

Light rain

76° 💧 0.01 in 💨 5 mph H 83%29.97 inHg

Wednesday

12:00 AM

Light rain

76° 💧 0.01 in 💨 5 mph H 82%30.00 inHg

1:00 AM

Light rain

75° 💧 0.01 in 💨 1 mph H 83%30.00 inHg

2:00 AM

Light rain

74° 💧 0.01 in 💨 2 mph H 86%30.00 inHg

3:00 AM

Light rain

74° 💧 0.01 in 💨 3 mph H 86%30.00 inHg

4:00 AM

Overcast night

74° 💧 None 💨 3 mph H 85%30.00 inHg

5:00 AM

Overcast night

74° 💧 None 💨 3 mph H 85%30.00 inHg

6:00 AM

Overcast night

74° 💧 None 💨 5 mph H 88%30.00 inHg

7:00 AM

Overcast

74° 💧 None 💨 4 mph H 89%30.03 inHg

8:00 AM

Overcast

76° 💧 None 💨 3 mph H 87%30.03 inHg

9:00 AM

Mostly cloudy

79° 💧 None 💨 1 mph H 80%30.03 inHg

10:00 AM

Partly cloudy

84° 💧 None 💨 2 mph H 68%30.03 inHg

11:00 AM

Mostly cloudy

87° 💧 None 💨 1 mph H 60%30.03 inHg

12:00 PM

Mostly cloudy

87° 💧 None 💨 4 mph H 60%30.03 inHg

1:00 PM

Mostly cloudy

88° 💧 None 💨 4 mph H 58%30.03 inHg

2:00 PM

Mostly cloudy

89° 💧 None 💨 5 mph H 56%30.00 inHg

3:00 PM

Mostly sunny

88° 💧 None 💨 6 mph H 58%30.00 inHg

4:00 PM

Mostly sunny

87° 💧 None 💨 6 mph H 59%29.97 inHg

5:00 PM

Mostly sunny

89° 💧 None 💨 6 mph H 56%29.97 inHg

6:00 PM

Mostly sunny

87° 💧 None 💨 8 mph H 62%29.94 inHg

7:00 PM

Mostly sunny

84° 💧 None 💨 8 mph H 68%29.94 inHg

8:00 PM

Light rain

79° 💧 0.01 in 💨 9 mph H 82%29.94 inHg

9:00 PM

Partly cloudy night

78° 💧 None 💨 9 mph H 85%29.97 inHg

10:00 PM

Light rain

76° 💧 0.01 in 💨 7 mph H 89%29.97 inHg

11:00 PM

Mostly cloudy night

75° 💧 None 💨 6 mph H 89%29.94 inHg

Thursday

12:00 AM

Mostly cloudy night

75° 💧 None 💨 5 mph H 93%29.94 inHg

1:00 AM

Partly cloudy night

75° 💧 None 💨 4 mph H 92%29.94 inHg

2:00 AM

Partly cloudy night

75° 💧 None 💨 4 mph H 92%29.94 inHg

3:00 AM

Light rain

74° 💧 0.00 in 💨 4 mph H 89%29.94 inHg

4:00 AM

Light rain

73° 💧 0.02 in 💨 6 mph H 88%29.94 inHg

5:00 AM

Light rain

72° 💧 0.01 in 💨 4 mph H 88%29.91 inHg

6:00 AM

Light rain

73° 💧 0.00 in 💨 5 mph H 90%29.91 inHg

7:00 AM

Sunny

73° 💧 None 💨 7 mph H 91%29.91 inHg

8:00 AM

Sunny

75° 💧 None 💨 7 mph H 89%29.91 inHg

9:00 AM

Sunny

79° 💧 None 💨 5 mph H 80%29.94 inHg

10:00 AM

Mostly sunny

84° 💧 None 💨 4 mph H 68%29.94 inHg

11:00 AM

Partly cloudy

88° 💧 None 💨 3 mph H 59%29.94 inHg

12:00 PM

Mostly cloudy

90° 💧 None 💨 4 mph H 54%29.91 inHg

1:00 PM

Mostly cloudy

92° 💧 None 💨 3 mph H 48%29.88 inHg

2:00 PM

Mostly cloudy

95° 💧 None 💨 4 mph H 44%29.88 inHg

3:00 PM

Sunny

98° 💧 None 💨 6 mph H 40%29.85 inHg

4:00 PM

Sunny

99° 💧 None 💨 6 mph H 36%29.83 inHg

5:00 PM

Sunny

100° 💧 None 💨 7 mph H 35%29.80 inHg

6:00 PM

Mostly sunny

97° 💧 None 💨 4 mph H 43%29.80 inHg

7:00 PM

Mostly sunny

90° 💧 None 💨 5 mph H 54%29.80 inHg

8:00 PM

Partly cloudy night

86° 💧 None 💨 7 mph H 56%29.83 inHg

9:00 PM

Clear night

84° 💧 None 💨 3 mph H 60%29.85 inHg

In St. Leonard and, more broadly, across the state of Maryland: The evening will feature a mix of sun and clouds, with temperatures remaining mild to warm, ranging from 77 to 83 degrees Fahrenheit. Winds will be light from the southeast, generally around 3 mph, with occasional gusts up to 5 mph. No precipitation is expected during the next few hours, making for a relatively calm evening. Conditions will be comfortable, with no significant weather changes anticipated. It’s a good evening to enjoy outdoor activities if you have plans, as the weather should remain pleasant and dry through the night.

15-Day Weather Outlook for St. Leonard

TomorrowTomorrow

Light rain 89°/73° 💧 0.04 in 💨 9 mph

Tuesday, Sep 1Tue Sep 1

Light rain 92°/72° 💧 0.01 in 💨 6 mph

Wednesday, Sep 2Wed Sep 2

Light rain 95°/75° 💧 0.02 in 💨 10 mph

Thursday, Sep 3Thu Sep 3

Light rain 96°/75° 💧 0.11 in 💨 9 mph

Friday, Sep 4Fri Sep 4

Light rain 88°/73° 💧 0.07 in 💨 9 mph

Saturday, Sep 5Sat Sep 5

Overcast 78°/68° 💧 None 💨 11 mph

Sunday, Sep 6Sun Sep 6

Light rain 77°/67° 💧 0.01 in 💨 11 mph

Monday, Sep 7Mon Sep 7

Partly cloudy 75°/62° 💧 None 💨 10 mph

Tuesday, Sep 8Tue Sep 8

Overcast 78°/63° 💧 None 💨 15 mph

Wednesday, Sep 9Wed Sep 9

Mostly cloudy 96°/72° 💧 None 💨 16 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 95°/76° 💧 None 💨 8 mph

Friday, Sep 11Fri Sep 11

Sunny 94°/76° 💧 None 💨 12 mph

Saturday, Sep 12Sat Sep 12

Sunny 95°/77° 💧 None 💨 14 mph

Sunday, Sep 13Sun Sep 13

Light rain 86°/72° 💧 0.03 in 💨 14 mph

Monday, Sep 14Mon Sep 14

Light rain 71°/64° 💧 0.14 in 💨 15 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in St. Leonard

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for St. Leonard

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 PM

PM2.5 Fine particles Good 3,7µg/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 4,7µg/m³

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

O₃ Ozone Good 44,9µg/m³

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

NO₂ Nitrogen dioxide Good 5,7µg/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 St. Leonard

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 8,0Very high 😊Good

Tomorrow UV 7,7High 😐Moderate

Tuesday UV 8,4Very high 😐Moderate

Wednesday UV 8,2Very high 😐Moderate

Thursday UV 8,1Very high 😐Moderate

Friday UV 7,0High —Unavailable

Saturday UV 7,0High —Unavailable

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

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Good air quality

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

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure. High humidity can make it feel hotter.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for St. Leonard

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 3.53 Population: 726

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Forecast data for St. Leonard were last refreshed today at 9:14 PM. The current forecast period extends through 01/09/2026 at 7:00 PM. 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.