What is the weather in Big Rock right now?

Current weather in Big Rock is overcast clouds.

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

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

Is the weather forecast for Big Rock updated regularly?

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

Now · 5:39 AM

Big Rock Weather & Hourly Forecast

United States · Iowa · 52745

65°F

Overcast night

Feels like: 68°F

💧 Humidity 94% 🌡 Pressure 29.85 inHg 💨 Wind 4 mph 👁 Visibility 12.3 mi ☁ Clouds 98% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Big Rock

Today

6:00 AM

Overcast night

65° 💧 None 💨 4 mph H 94%29.85 inHg

9:00 AM

Sunny

72° 💧 0.000 in 💨 7 mph H 86%29.85 inHg

12:00 PM

Overcast

78° 💧 0.001 in 💨 10 mph H 69%29.88 inHg

3:00 PM

Mostly sunny

79° 💧 None 💨 5 mph H 68%29.88 inHg

6:00 PM

Sunny

77° 💧 None 💨 7 mph H 65%29.88 inHg

9:00 PM

Clear night

68° 💧 None 💨 6 mph H 75%29.94 inHg

Tomorrow

12:00 AM

Clear night

64° 💧 None 💨 8 mph H 81%29.97 inHg

3:00 AM

Overcast night

60° 💧 None 💨 4 mph H 75%30.00 inHg

6:00 AM

Mostly cloudy night

60° 💧 None 💨 5 mph H 71%30.03 inHg

9:00 AM

Sunny

65° 💧 None 💨 6 mph H 67%30.09 inHg

12:00 PM

Overcast

72° 💧 0.048 in 💨 8 mph H 47%30.12 inHg

3:00 PM

Light rain

65° 💧 0.011 in 💨 7 mph H 65%30.12 inHg

6:00 PM

Sunny

67° 💧 None 💨 3 mph H 58%30.06 inHg

9:00 PM

Clear night

60° 💧 None 💨 3 mph H 79%30.15 inHg

Monday

12:00 AM

Clear night

57° 💧 None 💨 3 mph H 85%30.15 inHg

3:00 AM

Mostly clear night

55° 💧 None 💨 4 mph H 89%30.18 inHg

Today

6:00 AM

Overcast night

65° 💧 None 💨 4 mph H 94%29.85 inHg

7:00 AM

Overcast

66° 💧 None 💨 6 mph H 95%29.83 inHg

8:00 AM

Mostly sunny

68° 💧 None 💨 7 mph H 92%29.83 inHg

9:00 AM

Sunny

72° 💧 None 💨 7 mph H 86%29.85 inHg

10:00 AM

Sunny

75° 💧 None 💨 8 mph H 80%29.85 inHg

11:00 AM

Overcast

78° 💧 0.000 in 💨 11 mph H 70%29.85 inHg

12:00 PM

Overcast

78° 💧 0.000 in 💨 10 mph H 69%29.88 inHg

1:00 PM

Overcast

78° 💧 0.000 in 💨 10 mph H 71%29.88 inHg

2:00 PM

Overcast

78° 💧 None 💨 8 mph H 70%29.88 inHg

3:00 PM

Mostly sunny

79° 💧 None 💨 5 mph H 68%29.88 inHg

4:00 PM

Mostly sunny

80° 💧 None 💨 6 mph H 64%29.88 inHg

5:00 PM

Sunny

79° 💧 None 💨 7 mph H 64%29.88 inHg

6:00 PM

Sunny

77° 💧 None 💨 7 mph H 65%29.88 inHg

7:00 PM

Sunny

73° 💧 None 💨 5 mph H 73%29.88 inHg

8:00 PM

Clear night

70° 💧 None 💨 6 mph H 77%29.91 inHg

9:00 PM

Clear night

68° 💧 None 💨 6 mph H 75%29.94 inHg

10:00 PM

Clear night

66° 💧 None 💨 5 mph H 77%29.97 inHg

11:00 PM

Clear night

65° 💧 None 💨 6 mph H 81%29.97 inHg

Tomorrow

12:00 AM

Clear night

64° 💧 None 💨 8 mph H 81%29.97 inHg

1:00 AM

Mostly clear night

63° 💧 None 💨 7 mph H 73%30.00 inHg

2:00 AM

Mostly cloudy night

62° 💧 None 💨 4 mph H 72%30.00 inHg

3:00 AM

Overcast night

60° 💧 None 💨 4 mph H 75%30.00 inHg

4:00 AM

Overcast night

59° 💧 None 💨 4 mph H 76%30.00 inHg

5:00 AM

Overcast night

60° 💧 None 💨 4 mph H 73%30.03 inHg

6:00 AM

Mostly cloudy night

60° 💧 None 💨 5 mph H 71%30.03 inHg

7:00 AM

Mostly cloudy

59° 💧 None 💨 4 mph H 75%30.06 inHg

8:00 AM

Mostly sunny

62° 💧 None 💨 5 mph H 75%30.06 inHg

9:00 AM

Sunny

65° 💧 None 💨 6 mph H 67%30.09 inHg

10:00 AM

Mostly cloudy

68° 💧 None 💨 7 mph H 61%30.09 inHg

11:00 AM

Partly cloudy

70° 💧 None 💨 7 mph H 54%30.12 inHg

12:00 PM

Overcast

72° 💧 None 💨 8 mph H 47%30.12 inHg

1:00 PM

Light thunderstorms

70° 💧 0.011 in 💨 9 mph H 52%30.12 inHg

2:00 PM

Light rain

67° 💧 0.037 in 💨 10 mph H 62%30.12 inHg

3:00 PM

Light rain

65° 💧 0.011 in 💨 7 mph H 65%30.12 inHg

4:00 PM

Mostly cloudy

68° 💧 None 💨 7 mph H 59%30.09 inHg

5:00 PM

Sunny

68° 💧 None 💨 5 mph H 57%30.06 inHg

6:00 PM

Sunny

67° 💧 None 💨 3 mph H 58%30.06 inHg

7:00 PM

Sunny

64° 💧 None 💨 3 mph H 72%30.09 inHg

8:00 PM

Clear night

62° 💧 None 💨 3 mph H 76%30.12 inHg

9:00 PM

Clear night

60° 💧 None 💨 3 mph H 79%30.15 inHg

10:00 PM

Clear night

59° 💧 None 💨 4 mph H 81%30.15 inHg

11:00 PM

Clear night

58° 💧 None 💨 3 mph H 83%30.15 inHg

Monday

12:00 AM

Clear night

57° 💧 None 💨 3 mph H 85%30.15 inHg

1:00 AM

Clear night

56° 💧 None 💨 2 mph H 86%30.18 inHg

2:00 AM

Clear night

55° 💧 None 💨 3 mph H 87%30.18 inHg

3:00 AM

Mostly clear night

55° 💧 None 💨 4 mph H 89%30.18 inHg

4:00 AM

Clear night

55° 💧 None 💨 5 mph H 90%30.18 inHg

5:00 AM

Clear night

55° 💧 None 💨 4 mph H 92%30.18 inHg

6:00 AM

Clear night

55° 💧 None 💨 6 mph H 92%30.18 inHg

7:00 AM

Sunny

55° 💧 None 💨 6 mph H 92%30.21 inHg

8:00 AM

Sunny

58° 💧 None 💨 9 mph H 84%30.21 inHg

9:00 AM

Partly cloudy

62° 💧 None 💨 8 mph H 73%30.21 inHg

10:00 AM

Overcast

66° 💧 None 💨 11 mph H 58%30.18 inHg

11:00 AM

Overcast

68° 💧 None 💨 13 mph H 48%30.18 inHg

12:00 PM

Overcast

70° 💧 None 💨 12 mph H 46%30.15 inHg

1:00 PM

Overcast

71° 💧 None 💨 11 mph H 48%30.12 inHg

2:00 PM

Overcast

72° 💧 None 💨 13 mph H 48%30.06 inHg

3:00 PM

Overcast

73° 💧 None 💨 14 mph H 47%30.03 inHg

4:00 PM

Mostly sunny

75° 💧 None 💨 14 mph H 47%30.00 inHg

5:00 PM

Sunny

76° 💧 None 💨 14 mph H 47%29.97 inHg

6:00 PM

Sunny

75° 💧 None 💨 11 mph H 50%29.97 inHg

7:00 PM

Mostly sunny

73° 💧 None 💨 12 mph H 53%29.94 inHg

10:00 PM

Overcast night

71° 💧 None 💨 15 mph H 58%29.94 inHg

Tuesday

1:00 AM

Overcast night

73° 💧 None 💨 16 mph H 70%29.88 inHg

4:00 AM

Partly cloudy night

75° 💧 None 💨 15 mph H 82%29.88 inHg

7:00 AM

Moderate rain

72° 💧 None 💨 9 mph H 92%29.97 inHg

10:00 AM

Mostly sunny

79° 💧 None 💨 6 mph H 77%29.97 inHg

1:00 PM

Mostly cloudy

85° 💧 None 💨 9 mph H 60%29.97 inHg

4:00 PM

Moderate rain

80° 💧 None 💨 10 mph H 75%30.00 inHg

7:00 PM

Light thunderstorms

72° 💧 None 💨 7 mph H 94%30.06 inHg

10:00 PM

Moderate rain

71° 💧 None 💨 2 mph H 98%30.12 inHg

Wednesday

1:00 AM

Light rain

70° 💧 None 💨 5 mph H 99%30.15 inHg

4:00 AM

Moderate rain

65° 💧 None 💨 11 mph H 92%30.18 inHg

7:00 AM

Overcast

63° 💧 None 💨 10 mph H 95%30.21 inHg

10:00 AM

Moderate rain

65° 💧 None 💨 9 mph H 96%30.24 inHg

1:00 PM

Overcast

72° 💧 None 💨 9 mph H 86%30.21 inHg

4:00 PM

Overcast

74° 💧 None 💨 8 mph H 88%30.15 inHg

7:00 PM

Mostly sunny

71° 💧 None 💨 7 mph H 93%30.15 inHg

10:00 PM

Mostly cloudy night

68° 💧 None 💨 6 mph H 96%30.15 inHg

Thursday

1:00 AM

Light thunderstorms

66° 💧 None 💨 5 mph H 98%30.15 inHg

4:00 AM

Overcast night

67° 💧 None 💨 5 mph H 98%30.12 inHg

7:00 AM

Overcast

65° 💧 None 💨 7 mph H 99%30.18 inHg

10:00 AM

Overcast

69° 💧 None 💨 7 mph H 91%30.18 inHg

1:00 PM

Overcast

78° 💧 None 💨 5 mph H 77%30.15 inHg

4:00 PM

Partly cloudy

79° 💧 None 💨 4 mph H 74%30.12 inHg

7:00 PM

Mostly sunny

75° 💧 None 💨 6 mph H 87%30.12 inHg

Friday

1:00 AM

Overcast night

68° 💧 None 💨 8 mph H 96%30.12 inHg

7:00 AM

Mostly cloudy

67° 💧 None 💨 6 mph H 99%30.06 inHg

1:00 PM

Sunny

83° 💧 None 💨 10 mph H 73%30.00 inHg

7:00 PM

Light rain

72° 💧 None 💨 5 mph H 96%29.94 inHg

Saturday

1:00 AM

Light rain

71° 💧 None 💨 8 mph H 96%29.88 inHg

7:00 AM

Partly cloudy

67° 💧 None 💨 8 mph H 96%29.88 inHg

1:00 PM

Overcast

71° 💧 None 💨 11 mph H 73%29.88 inHg

7:00 PM

Overcast

65° 💧 None 💨 12 mph H 79%29.97 inHg

Sunday

1:00 AM

Clear night

60° 💧 None 💨 8 mph H 83%30.03 inHg

7:00 AM

Sunny

56° 💧 None 💨 9 mph H 90%30.12 inHg

1:00 PM

Sunny

69° 💧 None 💨 9 mph H 55%30.18 inHg

7:00 PM

Sunny

62° 💧 None 💨 5 mph H 68%30.12 inHg

Monday

1:00 AM

Clear night

53° 💧 None 💨 4 mph H 90%30.18 inHg

7:00 AM

Mostly cloudy

49° 💧 None 💨 3 mph H 97%30.18 inHg

1:00 PM

Overcast

65° 💧 None 💨 6 mph H 52%30.15 inHg

7:00 PM

Overcast

60° 💧 None 💨 5 mph H 69%30.06 inHg

Tuesday

1:00 AM

Clear night

52° 💧 None 💨 5 mph H 88%30.09 inHg

7:00 AM

Sunny

46° 💧 None 💨 3 mph H 96%30.09 inHg

1:00 PM

Sunny

68° 💧 None 💨 2 mph H 52%30.09 inHg

7:00 PM

Sunny

63° 💧 None 💨 1 mph H 70%30.06 inHg

Wednesday

1:00 AM

Clear night

55° 💧 None 💨 3 mph H 87%30.12 inHg

7:00 AM

Sunny

51° 💧 None 💨 3 mph H 95%30.18 inHg

1:00 PM

Sunny

72° 💧 None 💨 4 mph H 55%30.18 inHg

7:00 PM

Clear night

65° 💧 None 💨 5 mph H 75%30.15 inHg

Thursday

1:00 AM

Clear night

58° 💧 None 💨 6 mph H 88%30.21 inHg

7:00 AM

Sunny

54° 💧 None 💨 4 mph H 97%30.27 inHg

1:00 PM

Sunny

74° 💧 None 💨 4 mph H 53%30.27 inHg

7:00 PM

Clear night

67° 💧 None 💨 4 mph H 77%30.21 inHg

Friday

1:00 AM

Clear night

60° 💧 None 💨 6 mph H 91%30.24 inHg

7:00 AM

Sunny

55° 💧 None 💨 3 mph H 97%30.27 inHg

1:00 PM

Sunny

75° 💧 None 💨 2 mph H 59%30.24 inHg

7:00 PM

Clear night

69° 💧 None 💨 2 mph H 79%30.18 inHg

Saturday

1:00 AM

Clear night

61° 💧 None 💨 0 mph H 91%30.18 inHg

7:00 AM

Sunny

58° 💧 None 💨 1 mph H 97%30.15 inHg

1:00 PM

Light rain

78° 💧 None 💨 6 mph H 59%30.09 inHg

7:00 PM

Clear night

71° 💧 None 💨 5 mph H 78%30.00 inHg

In Big Rock and, more broadly, across the state of Iowa: As evening settles in, expect mostly cloudy skies with temperatures remaining mild to warm, ranging from 77 to 80 degrees Fahrenheit. Winds will be coming from the southeast at around 12 mph, with gusts reaching up to 29 mph. No precipitation is anticipated during the evening hours, so outdoor plans should be comfortable. The moderate southeast winds may cause some breezy conditions, especially with the gusts. Temperatures will stay steady through the night, making for a warm and relatively calm evening. Be prepared for the gusty winds if you’re heading outdoors, and enjoy the mild weather as the night progresses.

15-Day Weather Outlook for Big Rock

TomorrowTomorrow

Light thunderstorms 73°/59° 💧 None 💨 10 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 76°/55° 💧 None 💨 14 mph

Tuesday, Sep 15Tue Sep 15

Moderate rain 85°/71° 💧 0.082 in 💨 16 mph

Wednesday, Sep 16Wed Sep 16

Light thunderstorms 74°/63° 💧 1.146 in 💨 11 mph

Thursday, Sep 17Thu Sep 17

Light thunderstorms 79°/65° 💧 0.527 in 💨 7 mph

Friday, Sep 18Fri Sep 18

Overcast 83°/67° 💧 0.207 in 💨 10 mph

Saturday, Sep 19Sat Sep 19

Light rain 72°/67° 💧 0.324 in 💨 11 mph

Sunday, Sep 20Sun Sep 20

Overcast 69°/56° 💧 0.013 in 💨 12 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 65°/49° 💧 None 💨 6 mph

Tuesday, Sep 22Tue Sep 22

Overcast 68°/46° 💧 None 💨 5 mph

Wednesday, Sep 23Wed Sep 23

Sunny 72°/51° 💧 None 💨 4 mph

Thursday, Sep 24Thu Sep 24

Sunny 74°/54° 💧 None 💨 6 mph

Friday, Sep 25Fri Sep 25

Sunny 75°/55° 💧 None 💨 6 mph

Saturday, Sep 26Sat Sep 26

Sunny 78°/58° 💧 0.001 in 💨 6 mph

Sunday, Sep 27Sun Sep 27

Sunny 71°/71° 💧 0.016 in 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Big Rock

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Big Rock

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 6:00 AM

PM2.5 Fine particles Good 4,8µg/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 5,1µg/m³

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

O₃ Ozone Good 31,3µg/m³

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

NO₂ Nitrogen dioxide Good 3,2µg/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 Big 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 6,6High 😊Good

Tomorrow UV 4,4Moderate 🙂Fair

Monday UV 6,3High 🙂Fair

Tuesday UV 6,0High 🙂Fair

Wednesday UV 5,0Moderate 😊Good

Thursday UV 8,0Very high —Unavailable

Friday UV 5,0Moderate —Unavailable

Hourly UV index today

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

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 Big Rock

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · BIG ROCK, IOWA

Tonight's Stargazing & Shooting Stars

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

100/100Best-hour score

BEST TIME TONIGHT 11:00 PM–12:00 AM Astronomical darkness: 8:53 PM–5:06 AM

☁ Cloud cover 0% 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 27° 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 min54%

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 Big Rock were last refreshed today at 5:39 AM. The current forecast period extends through 14/09/2026 at 3:00 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.