What is the weather in Flat Rock right now?

Current weather in Flat Rock is few clouds.

Where can I find the hourly weather forecast for Flat Rock?

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

Is the weather forecast for Flat Rock updated regularly?

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

Now · 6:01 AM

Flat Rock Weather & Hourly Forecast

United States · Illinois · 62427

74°F

Mostly clear night

Feels like: 75°F

💧 Humidity 90% 🌡 Pressure 29.91 inHg 💨 Wind 5 mph 👁 Visibility 6.2 mi ☁ Clouds 14% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:23 AM 🌇 Sunset 7:15 PM

Hourly Forecast for Flat Rock

Today

7:00 AM

Mostly sunny

74° 💧 0.00 in 💨 5 mph H 90%29.91 inHg

10:00 AM

Sunny

86° 💧 None 💨 7 mph H 62%29.91 inHg

1:00 PM

Sunny

95° 💧 None 💨 8 mph H 31%29.85 inHg

4:00 PM

Partly cloudy

98° 💧 0.07 in 💨 12 mph H 32%29.80 inHg

7:00 PM

Moderate rain

81° 💧 0.14 in 💨 9 mph H 82%29.88 inHg

10:00 PM

Light rain

71° 💧 0.01 in 💨 8 mph H 91%29.91 inHg

Tomorrow

1:00 AM

Mostly clear night

68° 💧 None 💨 9 mph H 98%29.91 inHg

4:00 AM

Mostly clear night

63° 💧 None 💨 9 mph H 98%29.94 inHg

7:00 AM

Mostly sunny

64° 💧 None 💨 9 mph H 92%29.97 inHg

10:00 AM

Sunny

77° 💧 None 💨 13 mph H 46%30.00 inHg

1:00 PM

Sunny

82° 💧 None 💨 14 mph H 35%29.97 inHg

4:00 PM

Sunny

87° 💧 None 💨 14 mph H 30%29.97 inHg

7:00 PM

Sunny

76° 💧 None 💨 11 mph H 46%30.00 inHg

10:00 PM

Clear night

65° 💧 None 💨 9 mph H 77%30.03 inHg

Monday

1:00 AM

Clear night

62° 💧 None 💨 8 mph H 91%30.03 inHg

4:00 AM

Overcast night

61° 💧 None 💨 7 mph H 92%30.06 inHg

Today

7:00 AM

Mostly sunny

74° 💧 None 💨 5 mph H 90%29.91 inHg

8:00 AM

Light rain

75° 💧 0.00 in 💨 5 mph H 84%29.91 inHg

9:00 AM

Mostly sunny

80° 💧 None 💨 6 mph H 74%29.91 inHg

10:00 AM

Sunny

86° 💧 None 💨 7 mph H 62%29.91 inHg

11:00 AM

Sunny

93° 💧 None 💨 7 mph H 39%29.91 inHg

12:00 PM

Sunny

95° 💧 None 💨 8 mph H 34%29.88 inHg

1:00 PM

Sunny

95° 💧 None 💨 8 mph H 31%29.85 inHg

2:00 PM

Mostly sunny

98° 💧 None 💨 9 mph H 28%29.83 inHg

3:00 PM

Partly cloudy

98° 💧 None 💨 10 mph H 27%29.83 inHg

4:00 PM

Partly cloudy

98° 💧 None 💨 12 mph H 32%29.80 inHg

5:00 PM

Light rain

96° 💧 0.02 in 💨 8 mph H 47%29.80 inHg

6:00 PM

Moderate rain

92° 💧 0.05 in 💨 2 mph H 60%29.83 inHg

7:00 PM

Moderate rain

81° 💧 0.10 in 💨 9 mph H 82%29.88 inHg

8:00 PM

Moderate rain

75° 💧 0.05 in 💨 5 mph H 90%29.85 inHg

9:00 PM

Partly cloudy night

73° 💧 None 💨 6 mph H 89%29.88 inHg

10:00 PM

Light rain

71° 💧 0.01 in 💨 8 mph H 91%29.91 inHg

11:00 PM

Mostly clear night

69° 💧 None 💨 8 mph H 94%29.91 inHg

Tomorrow

12:00 AM

Mostly clear night

69° 💧 None 💨 9 mph H 96%29.91 inHg

1:00 AM

Mostly clear night

68° 💧 None 💨 9 mph H 98%29.91 inHg

2:00 AM

Mostly clear night

66° 💧 None 💨 9 mph H 98%29.91 inHg

3:00 AM

Mostly clear night

65° 💧 None 💨 9 mph H 98%29.91 inHg

4:00 AM

Mostly clear night

63° 💧 None 💨 9 mph H 98%29.94 inHg

5:00 AM

Mostly clear night

62° 💧 None 💨 9 mph H 97%29.94 inHg

6:00 AM

Mostly clear night

61° 💧 None 💨 9 mph H 96%29.94 inHg

7:00 AM

Mostly sunny

64° 💧 None 💨 9 mph H 92%29.97 inHg

8:00 AM

Sunny

68° 💧 None 💨 10 mph H 84%30.00 inHg

9:00 AM

Sunny

73° 💧 None 💨 12 mph H 67%30.00 inHg

10:00 AM

Sunny

77° 💧 None 💨 13 mph H 46%30.00 inHg

11:00 AM

Sunny

79° 💧 None 💨 13 mph H 40%30.00 inHg

12:00 PM

Sunny

82° 💧 None 💨 13 mph H 37%30.00 inHg

1:00 PM

Sunny

82° 💧 None 💨 14 mph H 35%29.97 inHg

2:00 PM

Sunny

84° 💧 None 💨 14 mph H 34%30.00 inHg

3:00 PM

Sunny

85° 💧 None 💨 15 mph H 31%29.97 inHg

4:00 PM

Sunny

87° 💧 None 💨 14 mph H 30%29.97 inHg

5:00 PM

Sunny

89° 💧 None 💨 15 mph H 32%29.97 inHg

6:00 PM

Sunny

85° 💧 None 💨 13 mph H 38%29.97 inHg

7:00 PM

Sunny

76° 💧 None 💨 11 mph H 46%30.00 inHg

8:00 PM

Mostly clear night

71° 💧 None 💨 10 mph H 61%30.00 inHg

9:00 PM

Clear night

67° 💧 None 💨 9 mph H 71%30.00 inHg

10:00 PM

Clear night

65° 💧 None 💨 9 mph H 77%30.03 inHg

11:00 PM

Clear night

64° 💧 None 💨 8 mph H 83%30.03 inHg

Monday

12:00 AM

Clear night

63° 💧 None 💨 8 mph H 87%30.06 inHg

1:00 AM

Clear night

62° 💧 None 💨 8 mph H 91%30.03 inHg

2:00 AM

Overcast night

61° 💧 None 💨 7 mph H 94%30.06 inHg

3:00 AM

Overcast night

61° 💧 None 💨 8 mph H 93%30.06 inHg

4:00 AM

Overcast night

61° 💧 None 💨 7 mph H 92%30.06 inHg

5:00 AM

Overcast night

60° 💧 None 💨 8 mph H 92%30.09 inHg

6:00 AM

Overcast night

59° 💧 None 💨 8 mph H 92%30.09 inHg

7:00 AM

Overcast

60° 💧 None 💨 6 mph H 91%30.09 inHg

8:00 AM

Mostly sunny

65° 💧 None 💨 8 mph H 75%30.09 inHg

9:00 AM

Sunny

71° 💧 None 💨 9 mph H 62%30.12 inHg

10:00 AM

Sunny

76° 💧 None 💨 11 mph H 50%30.12 inHg

11:00 AM

Mostly sunny

80° 💧 None 💨 9 mph H 41%30.09 inHg

12:00 PM

Mostly sunny

83° 💧 None 💨 9 mph H 34%30.09 inHg

1:00 PM

Partly cloudy

86° 💧 None 💨 9 mph H 29%30.06 inHg

2:00 PM

Mostly cloudy

88° 💧 None 💨 10 mph H 27%30.06 inHg

3:00 PM

Partly cloudy

88° 💧 None 💨 11 mph H 26%30.03 inHg

4:00 PM

Mostly cloudy

88° 💧 None 💨 11 mph H 27%30.03 inHg

5:00 PM

Mostly cloudy

86° 💧 None 💨 11 mph H 29%30.03 inHg

6:00 PM

Mostly cloudy

84° 💧 None 💨 11 mph H 34%30.03 inHg

7:00 PM

Mostly cloudy

77° 💧 None 💨 10 mph H 48%30.06 inHg

8:00 PM

Clear night

71° 💧 None 💨 9 mph H 64%30.06 inHg

9:00 PM

Clear night

69° 💧 None 💨 9 mph H 74%30.09 inHg

10:00 PM

Clear night

67° 💧 None 💨 9 mph H 80%30.09 inHg

11:00 PM

Clear night

65° 💧 None 💨 8 mph H 85%30.09 inHg

Tuesday

12:00 AM

Clear night

64° 💧 None 💨 7 mph H 91%30.09 inHg

1:00 AM

Clear night

64° 💧 None 💨 7 mph H 93%30.09 inHg

2:00 AM

Clear night

64° 💧 None 💨 6 mph H 94%30.09 inHg

3:00 AM

Clear night

64° 💧 None 💨 5 mph H 93%30.09 inHg

4:00 AM

Clear night

64° 💧 None 💨 6 mph H 93%30.09 inHg

5:00 AM

Mostly clear night

63° 💧 None 💨 5 mph H 91%30.09 inHg

6:00 AM

Mostly clear night

63° 💧 None 💨 5 mph H 89%30.09 inHg

7:00 AM

Partly cloudy

64° 💧 None 💨 5 mph H 84%30.12 inHg

8:00 AM

Sunny

70° 💧 None 💨 5 mph H 70%30.12 inHg

9:00 AM

Partly cloudy

77° 💧 None 💨 6 mph H 61%30.12 inHg

10:00 AM

Mostly cloudy

81° 💧 None 💨 8 mph H 57%30.12 inHg

11:00 AM

Mostly cloudy

85° 💧 None 💨 9 mph H 53%30.12 inHg

12:00 PM

Mostly cloudy

88° 💧 None 💨 9 mph H 48%30.12 inHg

1:00 PM

Mostly cloudy

91° 💧 None 💨 10 mph H 42%30.09 inHg

2:00 PM

Overcast

93° 💧 None 💨 10 mph H 36%30.06 inHg

3:00 PM

Overcast

94° 💧 None 💨 10 mph H 34%30.06 inHg

4:00 PM

Overcast

94° 💧 None 💨 10 mph H 33%30.03 inHg

5:00 PM

Overcast

93° 💧 None 💨 10 mph H 34%30.03 inHg

6:00 PM

Overcast

91° 💧 None 💨 9 mph H 37%30.03 inHg

7:00 PM

Overcast

85° 💧 None 💨 8 mph H 46%30.03 inHg

8:00 PM

Overcast night

82° 💧 None 💨 8 mph H 49%30.03 inHg

9:00 PM

Mostly cloudy night

80° 💧 None 💨 9 mph H 53%30.06 inHg

10:00 PM

Partly cloudy night

77° 💧 None 💨 9 mph H 62%30.06 inHg

11:00 PM

Partly cloudy night

78° 💧 None 💨 11 mph H 63%30.06 inHg

Wednesday

12:00 AM

Partly cloudy night

79° 💧 None 💨 13 mph H 59%30.06 inHg

1:00 AM

Partly cloudy night

80° 💧 None 💨 14 mph H 59%30.06 inHg

2:00 AM

Mostly clear night

79° 💧 None 💨 13 mph H 60%30.06 inHg

3:00 AM

Partly cloudy night

78° 💧 None 💨 13 mph H 63%30.06 inHg

4:00 AM

Mostly clear night

78° 💧 None 💨 13 mph H 62%30.06 inHg

5:00 AM

Mostly clear night

78° 💧 None 💨 13 mph H 61%30.06 inHg

6:00 AM

Mostly clear night

77° 💧 None 💨 11 mph H 64%30.06 inHg

In Flat Rock and, more broadly, across the state of Illinois: This evening, skies will feature a mix of sun and clouds, with temperatures remaining quite hot, ranging from 91 to 94 degrees Fahrenheit. Winds will be moderate from the northeast at around 10 mph, with gusts reaching up to 14 mph. No precipitation is expected during this time, providing dry conditions through the night. Temperatures are likely to stay warm as the evening progresses, making for a warm night ahead. Overall, expect a quiet evening with comfortable wind activity but no significant weather disturbances.

15-Day Weather Outlook for Flat Rock

TomorrowTomorrow

Sunny 89°/61° 💧 None 💨 15 mph

Monday, Sep 7Mon Sep 7

Mostly sunny 88°/59° 💧 None 💨 11 mph

Tuesday, Sep 8Tue Sep 8

Mostly cloudy 94°/63° 💧 None 💨 10 mph

Wednesday, Sep 9Wed Sep 9

Light rain 100°/76° 💧 0.02 in 💨 16 mph

Thursday, Sep 10Thu Sep 10

Light rain 79°/64° 💧 0.50 in 💨 17 mph

Friday, Sep 11Fri Sep 11

Light rain 81°/62° 💧 0.03 in 💨 12 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 85°/60° 💧 None 💨 8 mph

Sunday, Sep 13Sun Sep 13

Light rain 98°/66° 💧 0.06 in 💨 16 mph

Monday, Sep 14Mon Sep 14

Light rain 80°/59° 💧 0.07 in 💨 13 mph

Tuesday, Sep 15Tue Sep 15

Sunny 80°/47° 💧 None 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 87°/54° 💧 None 💨 8 mph

Thursday, Sep 17Thu Sep 17

Overcast 97°/67° 💧 None 💨 11 mph

Friday, Sep 18Fri Sep 18

Light rain 100°/75° 💧 0.02 in 💨 10 mph

Saturday, Sep 19Sat Sep 19

Light rain 99°/75° 💧 0.00 in 💨 11 mph

Sunday, Sep 20Sun Sep 20

Light rain 96°/72° 💧 0.04 in 💨 15 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Flat Rock

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Flat Rock

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 7:00 AM

PM2.5 Fine particles Fair 10,1µg/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 10,9µg/m³

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

O₃ Ozone Good 34,2µg/m³

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

NO₂ Nitrogen dioxide Good 4,0µg/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 Flat Rock

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 7,8High 🙂Fair

Tomorrow UV 7,7High 😐Moderate

Monday UV 7,6High 😐Moderate

Tuesday UV 7,8High 😐Moderate

Wednesday UV 9,0Very high 🙂Fair

Thursday UV 7,0High —Unavailable

Friday UV 8,0Very high —Unavailable

Hourly UV index today

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

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.

Acceptable air quality

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

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 Flat Rock

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · FLAT ROCK, ILLINOIS

Tonight's Stargazing & Shooting Stars

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

82/100Best-hour score

BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 8:47 PM–4:52 AM

☁ Cloud cover 16% Real hourly forecast for the best viewing hour.

☾ Moonlight 32% Last Quarter · Moon about 0° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 44° 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 min55%

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

AUG 28–SEP 5

AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak

ACTIVE NOW

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

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 Flat Rock were last refreshed today at 6:01 AM. The current forecast period extends through 07/09/2026 at 4:00 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.