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Current weather in Irmo is broken clouds.

Where can I find the hourly weather forecast for Irmo?

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

Is the weather forecast for Irmo updated regularly?

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

Now · 6:01 PM

Irmo Weather & Hourly Forecast

United States · South Carolina · 29063

86°F

Mostly cloudy

Feels like: 84°F

💧 Humidity 36% 🌡 Pressure 30.18 inHg 💨 Wind 6 mph 👁 Visibility 29.1 mi ☁ Clouds 88% ☀️ UV index 2.5 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Irmo

Today

7:00 PM

Mostly cloudy

82° 💧 None 💨 5 mph H 45%30.18 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 6 mph H 59%30.24 inHg

Tomorrow

1:00 AM

Clear night

72° 💧 None 💨 4 mph H 78%30.24 inHg

4:00 AM

Mostly cloudy night

70° 💧 None 💨 3 mph H 92%30.24 inHg

7:00 AM

Clear night

68° 💧 None 💨 3 mph H 95%30.24 inHg

10:00 AM

Partly cloudy

79° 💧 None 💨 4 mph H 69%30.27 inHg

1:00 PM

Mostly sunny

86° 💧 None 💨 4 mph H 45%30.24 inHg

4:00 PM

Sunny

89° 💧 None 💨 6 mph H 40%30.15 inHg

7:00 PM

Partly cloudy

86° 💧 None 💨 2 mph H 49%30.12 inHg

10:00 PM

Mostly cloudy night

79° 💧 None 💨 9 mph H 68%30.15 inHg

Thursday

1:00 AM

Partly cloudy night

76° 💧 None 💨 5 mph H 89%30.15 inHg

4:00 AM

Mostly clear night

74° 💧 None 💨 2 mph H 94%30.12 inHg

7:00 AM

Partly cloudy night

74° 💧 None 💨 1 mph H 95%30.09 inHg

10:00 AM

Light rain

82° 💧 0.017 in 💨 4 mph H 75%30.12 inHg

1:00 PM

Light rain

88° 💧 0.084 in 💨 3 mph H 61%30.06 inHg

4:00 PM

Thunderstorms

78° 💧 0.121 in 💨 2 mph H 97%30.00 inHg

Today

7:00 PM

Mostly cloudy

82° 💧 None 💨 5 mph H 45%30.18 inHg

8:00 PM

Mostly cloudy night

78° 💧 None 💨 6 mph H 53%30.18 inHg

9:00 PM

Overcast night

76° 💧 None 💨 6 mph H 58%30.21 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 6 mph H 59%30.24 inHg

11:00 PM

Mostly clear night

74° 💧 None 💨 7 mph H 61%30.24 inHg

Tomorrow

12:00 AM

Clear night

73° 💧 None 💨 5 mph H 69%30.24 inHg

1:00 AM

Clear night

72° 💧 None 💨 4 mph H 78%30.24 inHg

2:00 AM

Clear night

71° 💧 None 💨 4 mph H 85%30.24 inHg

3:00 AM

Mostly cloudy night

70° 💧 None 💨 4 mph H 89%30.24 inHg

4:00 AM

Mostly cloudy night

70° 💧 None 💨 3 mph H 92%30.24 inHg

5:00 AM

Mostly cloudy night

69° 💧 None 💨 4 mph H 93%30.24 inHg

6:00 AM

Partly cloudy night

69° 💧 None 💨 3 mph H 94%30.24 inHg

7:00 AM

Clear night

68° 💧 None 💨 3 mph H 95%30.24 inHg

8:00 AM

Sunny

70° 💧 None 💨 4 mph H 90%30.27 inHg

9:00 AM

Mostly sunny

75° 💧 None 💨 3 mph H 79%30.27 inHg

10:00 AM

Partly cloudy

79° 💧 None 💨 4 mph H 69%30.27 inHg

11:00 AM

Mostly cloudy

82° 💧 None 💨 4 mph H 59%30.27 inHg

12:00 PM

Mostly cloudy

85° 💧 None 💨 4 mph H 50%30.27 inHg

1:00 PM

Mostly sunny

86° 💧 None 💨 4 mph H 45%30.24 inHg

2:00 PM

Partly cloudy

88° 💧 None 💨 4 mph H 43%30.21 inHg

3:00 PM

Mostly sunny

89° 💧 None 💨 5 mph H 41%30.18 inHg

4:00 PM

Sunny

89° 💧 None 💨 6 mph H 40%30.15 inHg

5:00 PM

Sunny

89° 💧 None 💨 5 mph H 40%30.12 inHg

6:00 PM

Partly cloudy

88° 💧 None 💨 3 mph H 40%30.12 inHg

7:00 PM

Partly cloudy

86° 💧 None 💨 2 mph H 49%30.12 inHg

8:00 PM

Partly cloudy night

81° 💧 None 💨 2 mph H 58%30.09 inHg

9:00 PM

Mostly cloudy night

79° 💧 None 💨 4 mph H 65%30.12 inHg

10:00 PM

Mostly cloudy night

79° 💧 None 💨 9 mph H 68%30.15 inHg

11:00 PM

Mostly cloudy night

78° 💧 None 💨 8 mph H 81%30.15 inHg

Thursday

12:00 AM

Partly cloudy night

77° 💧 None 💨 7 mph H 85%30.15 inHg

1:00 AM

Partly cloudy night

76° 💧 None 💨 5 mph H 89%30.15 inHg

2:00 AM

Mostly clear night

75° 💧 None 💨 3 mph H 92%30.12 inHg

3:00 AM

Mostly clear night

74° 💧 None 💨 2 mph H 93%30.12 inHg

4:00 AM

Mostly clear night

74° 💧 None 💨 2 mph H 94%30.12 inHg

5:00 AM

Clear night

74° 💧 None 💨 2 mph H 95%30.09 inHg

6:00 AM

Mostly clear night

74° 💧 None 💨 2 mph H 95%30.09 inHg

7:00 AM

Partly cloudy night

74° 💧 None 💨 1 mph H 95%30.09 inHg

8:00 AM

Partly cloudy

76° 💧 None 💨 2 mph H 91%30.12 inHg

9:00 AM

Partly cloudy

79° 💧 None 💨 2 mph H 82%30.12 inHg

10:00 AM

Light rain

82° 💧 0.005 in 💨 4 mph H 75%30.12 inHg

11:00 AM

Light rain

84° 💧 0.009 in 💨 3 mph H 70%30.12 inHg

12:00 PM

Overcast

86° 💧 0.004 in 💨 3 mph H 65%30.09 inHg

1:00 PM

Light rain

88° 💧 0.010 in 💨 3 mph H 61%30.06 inHg

2:00 PM

Partly cloudy

88° 💧 0.004 in 💨 0 mph H 59%30.03 inHg

3:00 PM

Light thunderstorms

83° 💧 0.071 in 💨 6 mph H 75%30.00 inHg

4:00 PM

Thunderstorms

78° 💧 0.120 in 💨 2 mph H 97%30.00 inHg

5:00 PM

Mostly sunny

82° 💧 0.001 in 💨 3 mph H 83%29.97 inHg

6:00 PM

Sunny

85° 💧 None 💨 4 mph H 71%29.94 inHg

7:00 PM

Mostly sunny

85° 💧 None 💨 5 mph H 71%29.94 inHg

8:00 PM

Partly cloudy night

82° 💧 0.001 in 💨 6 mph H 77%29.94 inHg

9:00 PM

Light rain

80° 💧 0.015 in 💨 5 mph H 84%29.97 inHg

10:00 PM

Mostly clear night

79° 💧 0.003 in 💨 5 mph H 87%29.97 inHg

11:00 PM

Clear night

79° 💧 0.000 in 💨 6 mph H 89%30.00 inHg

Friday

12:00 AM

Clear night

78° 💧 0.000 in 💨 7 mph H 91%29.97 inHg

1:00 AM

Clear night

78° 💧 None 💨 7 mph H 92%29.97 inHg

2:00 AM

Clear night

77° 💧 None 💨 6 mph H 93%29.97 inHg

3:00 AM

Clear night

77° 💧 None 💨 6 mph H 94%29.97 inHg

4:00 AM

Clear night

76° 💧 None 💨 6 mph H 94%29.94 inHg

5:00 AM

Clear night

76° 💧 None 💨 5 mph H 94%29.94 inHg

6:00 AM

Partly cloudy night

76° 💧 None 💨 3 mph H 95%29.97 inHg

7:00 AM

Mostly cloudy night

75° 💧 None 💨 4 mph H 95%29.97 inHg

8:00 AM

Partly cloudy

77° 💧 None 💨 4 mph H 91%30.00 inHg

11:00 AM

Mostly sunny

86° 💧 None 💨 3 mph H 65%29.97 inHg

2:00 PM

Light rain

90° 💧 None 💨 2 mph H 57%29.94 inHg

5:00 PM

Light rain

83° 💧 None 💨 3 mph H 76%29.88 inHg

8:00 PM

Mostly cloudy night

78° 💧 None 💨 6 mph H 92%29.94 inHg

11:00 PM

Partly cloudy night

76° 💧 None 💨 4 mph H 95%30.00 inHg

Saturday

2:00 AM

Clear night

76° 💧 None 💨 5 mph H 97%29.97 inHg

5:00 AM

Mostly clear night

76° 💧 None 💨 5 mph H 97%29.97 inHg

8:00 AM

Overcast

76° 💧 None 💨 3 mph H 95%30.00 inHg

11:00 AM

Light rain

81° 💧 None 💨 4 mph H 78%30.06 inHg

2:00 PM

Mostly cloudy

87° 💧 None 💨 3 mph H 64%30.00 inHg

5:00 PM

Light rain

88° 💧 None 💨 6 mph H 57%29.94 inHg

8:00 PM

Overcast night

79° 💧 None 💨 2 mph H 84%30.00 inHg

11:00 PM

Light rain

75° 💧 None 💨 6 mph H 96%30.06 inHg

Sunday

2:00 AM

Light rain

73° 💧 None 💨 5 mph H 98%30.06 inHg

5:00 AM

Mostly cloudy night

73° 💧 None 💨 2 mph H 96%30.03 inHg

8:00 AM

Overcast

74° 💧 None 💨 1 mph H 96%30.09 inHg

11:00 AM

Light rain

80° 💧 None 💨 2 mph H 79%30.09 inHg

2:00 PM

Mostly cloudy

87° 💧 None 💨 2 mph H 62%30.06 inHg

5:00 PM

Moderate rain

85° 💧 None 💨 2 mph H 72%30.00 inHg

8:00 PM

Partly cloudy night

78° 💧 None 💨 5 mph H 90%30.03 inHg

11:00 PM

Mostly clear night

77° 💧 None 💨 3 mph H 95%30.09 inHg

Monday

2:00 AM

Clear night

75° 💧 None 💨 3 mph H 97%30.06 inHg

5:00 AM

Partly cloudy night

75° 💧 None 💨 2 mph H 96%30.06 inHg

8:00 AM

Partly cloudy

77° 💧 None 💨 1 mph H 93%30.12 inHg

2:00 PM

Mostly sunny

88° 💧 None 💨 4 mph H 65%30.06 inHg

8:00 PM

Mostly clear night

82° 💧 None 💨 6 mph H 77%30.03 inHg

Tuesday

2:00 AM

Clear night

76° 💧 None 💨 4 mph H 96%30.06 inHg

8:00 AM

Partly cloudy

77° 💧 None 💨 2 mph H 94%30.12 inHg

2:00 PM

Mostly sunny

88° 💧 None 💨 6 mph H 63%30.09 inHg

8:00 PM

Mostly clear night

82° 💧 None 💨 8 mph H 74%30.06 inHg

Wednesday

2:00 AM

Light rain

77° 💧 None 💨 3 mph H 92%30.12 inHg

8:00 AM

Mostly sunny

76° 💧 None 💨 1 mph H 93%30.15 inHg

2:00 PM

Mostly sunny

89° 💧 None 💨 1 mph H 59%30.12 inHg

8:00 PM

Mostly clear night

80° 💧 None 💨 4 mph H 84%30.12 inHg

Thursday

2:00 AM

Clear night

77° 💧 None 💨 3 mph H 94%30.15 inHg

8:00 AM

Mostly cloudy

76° 💧 None 💨 2 mph H 96%30.18 inHg

2:00 PM

Mostly sunny

90° 💧 None 💨 3 mph H 57%30.15 inHg

8:00 PM

Partly cloudy night

85° 💧 None 💨 0 mph H 73%30.09 inHg

Friday

2:00 AM

Clear night

77° 💧 None 💨 3 mph H 89%30.12 inHg

8:00 AM

Partly cloudy

76° 💧 None 💨 4 mph H 94%30.15 inHg

2:00 PM

Mostly sunny

89° 💧 None 💨 2 mph H 57%30.09 inHg

8:00 PM

Light rain

83° 💧 None 💨 4 mph H 79%30.00 inHg

Saturday

2:00 AM

Clear night

78° 💧 None 💨 6 mph H 90%30.06 inHg

8:00 AM

Sunny

77° 💧 None 💨 5 mph H 93%30.06 inHg

2:00 PM

Mostly sunny

91° 💧 None 💨 1 mph H 54%30.03 inHg

8:00 PM

Mostly clear night

86° 💧 None 💨 1 mph H 72%30.00 inHg

Sunday

2:00 AM

Clear night

78° 💧 None 💨 3 mph H 89%30.06 inHg

8:00 AM

Mostly sunny

77° 💧 None 💨 4 mph H 94%30.12 inHg

2:00 PM

Mostly sunny

91° 💧 None 💨 2 mph H 48%30.09 inHg

8:00 PM

Clear night

84° 💧 None 💨 9 mph H 69%30.09 inHg

Monday

2:00 AM

Clear night

78° 💧 None 💨 5 mph H 90%30.12 inHg

8:00 AM

Partly cloudy

75° 💧 None 💨 4 mph H 94%30.18 inHg

2:00 PM

Overcast

92° 💧 None 💨 5 mph H 48%30.12 inHg

8:00 PM

Light rain

80° 💧 None 💨 3 mph H 87%30.09 inHg

Tuesday

2:00 AM

Partly cloudy night

74° 💧 None 💨 2 mph H 94%30.12 inHg

8:00 AM

Light rain

73° 💧 None 💨 3 mph H 97%30.15 inHg

2:00 PM

Light rain

85° 💧 None 💨 5 mph H 66%30.15 inHg

8:00 PM

Heavy rain

75° 💧 None 💨 5 mph H 93%30.12 inHg

Wednesday

2:00 AM

Overcast night

73° 💧 None 💨 5 mph H 97%30.12 inHg

8:00 AM

Overcast

73° 💧 None 💨 5 mph H 97%30.15 inHg

In Irmo and, more broadly, across the state of South Carolina: As the afternoon progresses into the evening, skies will feature a mix of sun and clouds, creating a partly cloudy setting. Temperatures will remain warm, ranging from 77 to 88 degrees Fahrenheit. Winds are expected to be light, blowing from the east at speeds up to 9 mph, with occasional gusts reaching 19 mph. No precipitation is anticipated during this time, so outdoor activities should generally be comfortable. Temperatures will gradually decrease as night approaches, but conditions will remain mild with no significant weather disturbances forecast. Overall, expect a warm and relatively calm evening with partly sunny skies.

15-Day Weather Outlook for Irmo

TomorrowTomorrow

Mostly cloudy 89°/68° 💧 None 💨 7 mph

Thursday, Sep 10Thu Sep 10

Light thunderstorms 88°/74° 💧 None 💨 9 mph

Friday, Sep 11Fri Sep 11

Light rain 90°/75° 💧 0.289 in 💨 7 mph

Saturday, Sep 12Sat Sep 12

Light rain 88°/76° 💧 0.077 in 💨 6 mph

Sunday, Sep 13Sun Sep 13

Moderate rain 87°/73° 💧 0.348 in 💨 6 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 88°/75° 💧 0.056 in 💨 5 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 88°/76° 💧 0.047 in 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Light rain 89°/76° 💧 0.028 in 💨 8 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 90°/76° 💧 0.090 in 💨 4 mph

Friday, Sep 18Fri Sep 18

Partly cloudy 89°/76° 💧 0.067 in 💨 4 mph

Saturday, Sep 19Sat Sep 19

Light rain 91°/77° 💧 0.038 in 💨 6 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 91°/77° 💧 0.024 in 💨 4 mph

Monday, Sep 21Mon Sep 21

Overcast 92°/75° 💧 0.004 in 💨 9 mph

Tuesday, Sep 22Tue Sep 22

Light rain 85°/73° 💧 0.264 in 💨 5 mph

Wednesday, Sep 23Wed Sep 23

Heavy rain 75°/73° 💧 0.195 in 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Irmo

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Irmo

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 7:00 PM

PM2.5 Fine particles Good 2,0µg/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 3,1µg/m³

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

O₃ Ozone Fair 80,5µg/m³

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

NO₂ Nitrogen dioxide Good 1,3µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Irmo

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 8,3Very high 🙂Fair

Tomorrow UV 8,6Very high 🙂Fair

Thursday UV 8,3Very high 🙂Fair

Friday UV 7,6High 😊Good

Saturday UV 8,4Very high 😊Good

Sunday UV 8,0Very high —Unavailable

Monday UV 8,0Very high —Unavailable

Hourly UV index today

7:00 PMUV 0,2

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.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 Irmo

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · IRMO, SOUTH CAROLINA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 1:00 AM–2:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 9:06 PM–5:38 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 8% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 38° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min65%

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.

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Forecast data for Irmo were last refreshed today at 5:59 PM. The current forecast period extends through 10/09/2026 at 4:00 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.