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Current weather in Monticello is clear sky.

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

Now · 7:40 PM

Monticello Weather & Hourly Forecast

United States · Iowa · 52310

68°F

Sunny

Feels like: 61°F

💧 Humidity 67% 🌡 Pressure 29.91 inHg 💨 Wind 15 mph 👁 Visibility 21.9 mi ☁ Clouds 5% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Monticello

Today

8:00 PM

Mostly clear night

68° 💧 None 💨 16 mph H 66%29.91 inHg

11:00 PM

Overcast night

70° 💧 None 💨 17 mph H 64%29.88 inHg

Tomorrow

2:00 AM

Light thunderstorms

69° 💧 0.494 in 💨 12 mph H 87%29.91 inHg

5:00 AM

Light thunderstorms

68° 💧 0.449 in 💨 5 mph H 95%29.91 inHg

8:00 AM

Light rain

69° 💧 0.106 in 💨 9 mph H 97%29.97 inHg

11:00 AM

Light rain

72° 💧 0.170 in 💨 7 mph H 96%30.00 inHg

2:00 PM

Overcast

71° 💧 0.003 in 💨 6 mph H 65%30.03 inHg

5:00 PM

Overcast

72° 💧 0.002 in 💨 5 mph H 71%30.09 inHg

8:00 PM

Overcast night

67° 💧 None 💨 5 mph H 78%30.12 inHg

11:00 PM

Overcast night

64° 💧 None 💨 7 mph H 78%30.21 inHg

Wednesday

2:00 AM

Overcast night

62° 💧 None 💨 8 mph H 80%30.21 inHg

5:00 AM

Overcast night

61° 💧 None 💨 8 mph H 82%30.24 inHg

8:00 AM

Overcast

61° 💧 0.002 in 💨 8 mph H 83%30.27 inHg

11:00 AM

Light rain

63° 💧 0.182 in 💨 7 mph H 87%30.30 inHg

2:00 PM

Light rain

65° 💧 0.164 in 💨 8 mph H 95%30.24 inHg

5:00 PM

Light thunderstorms

68° 💧 0.161 in 💨 9 mph H 94%30.18 inHg

Today

8:00 PM

Mostly clear night

68° 💧 None 💨 16 mph H 66%29.91 inHg

9:00 PM

Overcast night

68° 💧 None 💨 17 mph H 65%29.88 inHg

10:00 PM

Overcast night

69° 💧 None 💨 17 mph H 65%29.91 inHg

11:00 PM

Overcast night

70° 💧 None 💨 17 mph H 64%29.88 inHg

Tomorrow

12:00 AM

Partly cloudy night

71° 💧 None 💨 16 mph H 66%29.85 inHg

1:00 AM

Mostly cloudy night

71° 💧 None 💨 14 mph H 70%29.85 inHg

2:00 AM

Light thunderstorms

69° 💧 0.094 in 💨 12 mph H 87%29.91 inHg

3:00 AM

Thunderstorms

69° 💧 0.231 in 💨 9 mph H 92%29.91 inHg

4:00 AM

Thunderstorms

69° 💧 0.169 in 💨 7 mph H 95%29.91 inHg

5:00 AM

Light thunderstorms

68° 💧 0.094 in 💨 5 mph H 95%29.91 inHg

6:00 AM

Thunderstorms

69° 💧 0.220 in 💨 10 mph H 95%29.94 inHg

7:00 AM

Thunderstorms

69° 💧 0.135 in 💨 10 mph H 96%29.94 inHg

8:00 AM

Light rain

69° 💧 0.043 in 💨 9 mph H 97%29.97 inHg

9:00 AM

Light rain

70° 💧 0.036 in 💨 10 mph H 96%29.97 inHg

10:00 AM

Light rain

71° 💧 0.027 in 💨 9 mph H 96%30.00 inHg

11:00 AM

Light rain

72° 💧 0.056 in 💨 7 mph H 96%30.00 inHg

12:00 PM

Light thunderstorms

71° 💧 0.081 in 💨 8 mph H 96%30.03 inHg

1:00 PM

Light rain

68° 💧 0.034 in 💨 6 mph H 83%30.03 inHg

2:00 PM

Overcast

71° 💧 0.000 in 💨 6 mph H 65%30.03 inHg

3:00 PM

Overcast

71° 💧 0.001 in 💨 6 mph H 71%30.06 inHg

4:00 PM

Overcast

73° 💧 0.002 in 💨 4 mph H 70%30.06 inHg

5:00 PM

Overcast

72° 💧 0.002 in 💨 5 mph H 71%30.09 inHg

6:00 PM

Overcast

72° 💧 0.000 in 💨 4 mph H 73%30.09 inHg

7:00 PM

Overcast

69° 💧 None 💨 4 mph H 76%30.09 inHg

8:00 PM

Overcast night

67° 💧 None 💨 5 mph H 78%30.12 inHg

9:00 PM

Overcast night

66° 💧 None 💨 7 mph H 78%30.15 inHg

10:00 PM

Overcast night

64° 💧 None 💨 7 mph H 78%30.18 inHg

11:00 PM

Overcast night

64° 💧 None 💨 7 mph H 78%30.21 inHg

Wednesday

12:00 AM

Overcast night

63° 💧 None 💨 8 mph H 77%30.21 inHg

1:00 AM

Overcast night

63° 💧 None 💨 8 mph H 78%30.21 inHg

2:00 AM

Overcast night

62° 💧 None 💨 8 mph H 80%30.21 inHg

3:00 AM

Overcast night

61° 💧 None 💨 8 mph H 81%30.24 inHg

4:00 AM

Overcast night

61° 💧 None 💨 8 mph H 82%30.24 inHg

5:00 AM

Overcast night

61° 💧 None 💨 8 mph H 82%30.24 inHg

6:00 AM

Overcast night

60° 💧 None 💨 8 mph H 82%30.27 inHg

7:00 AM

Overcast

60° 💧 None 💨 8 mph H 83%30.27 inHg

8:00 AM

Overcast

61° 💧 None 💨 8 mph H 83%30.27 inHg

9:00 AM

Overcast

63° 💧 None 💨 8 mph H 80%30.30 inHg

10:00 AM

Overcast

64° 💧 0.002 in 💨 9 mph H 80%30.30 inHg

11:00 AM

Light rain

63° 💧 0.033 in 💨 7 mph H 87%30.30 inHg

12:00 PM

Light rain

64° 💧 0.073 in 💨 8 mph H 92%30.27 inHg

1:00 PM

Light rain

64° 💧 0.077 in 💨 9 mph H 94%30.27 inHg

2:00 PM

Light rain

65° 💧 0.064 in 💨 8 mph H 95%30.24 inHg

3:00 PM

Light rain

66° 💧 0.065 in 💨 7 mph H 94%30.24 inHg

4:00 PM

Light rain

67° 💧 0.035 in 💨 10 mph H 93%30.21 inHg

5:00 PM

Light thunderstorms

68° 💧 0.030 in 💨 9 mph H 94%30.18 inHg

6:00 PM

Thunderstorms

68° 💧 0.120 in 💨 7 mph H 97%30.18 inHg

7:00 PM

Light rain

68° 💧 0.012 in 💨 6 mph H 98%30.18 inHg

8:00 PM

Mostly cloudy night

67° 💧 0.003 in 💨 6 mph H 99%30.18 inHg

9:00 PM

Mostly cloudy night

66° 💧 None 💨 5 mph H 99%30.18 inHg

10:00 PM

Light thunderstorms

66° 💧 0.031 in 💨 6 mph H 99%30.18 inHg

11:00 PM

Thunderstorms

66° 💧 0.125 in 💨 5 mph H 99%30.18 inHg

Thursday

12:00 AM

Moderate rain

66° 💧 0.158 in 💨 5 mph H 99%30.15 inHg

1:00 AM

Moderate rain

66° 💧 0.156 in 💨 4 mph H 99%30.15 inHg

2:00 AM

Moderate rain

66° 💧 0.197 in 💨 4 mph H 99%30.15 inHg

3:00 AM

Moderate rain

65° 💧 0.163 in 💨 4 mph H 100%30.15 inHg

4:00 AM

Light rain

65° 💧 0.091 in 💨 4 mph H 99%30.15 inHg

5:00 AM

Light thunderstorms

65° 💧 0.071 in 💨 4 mph H 99%30.15 inHg

6:00 AM

Light thunderstorms

65° 💧 0.019 in 💨 6 mph H 99%30.15 inHg

7:00 AM

Overcast

64° 💧 0.004 in 💨 5 mph H 99%30.18 inHg

10:00 AM

Overcast

68° 💧 None 💨 8 mph H 92%30.21 inHg

1:00 PM

Overcast

74° 💧 None 💨 5 mph H 81%30.21 inHg

4:00 PM

Overcast

75° 💧 None 💨 6 mph H 78%30.18 inHg

7:00 PM

Overcast

72° 💧 None 💨 5 mph H 85%30.18 inHg

10:00 PM

Overcast night

70° 💧 None 💨 7 mph H 85%30.24 inHg

Friday

1:00 AM

Overcast night

68° 💧 None 💨 7 mph H 89%30.21 inHg

4:00 AM

Overcast night

67° 💧 None 💨 7 mph H 81%30.24 inHg

7:00 AM

Partly cloudy

64° 💧 None 💨 9 mph H 80%30.24 inHg

10:00 AM

Mostly cloudy

68° 💧 None 💨 10 mph H 75%30.21 inHg

1:00 PM

Overcast

74° 💧 None 💨 11 mph H 76%30.15 inHg

4:00 PM

Light rain

72° 💧 None 💨 11 mph H 91%30.09 inHg

7:00 PM

Light rain

70° 💧 None 💨 12 mph H 94%30.03 inHg

10:00 PM

Overcast night

69° 💧 None 💨 10 mph H 97%30.03 inHg

Saturday

1:00 AM

Partly cloudy night

69° 💧 None 💨 11 mph H 98%29.94 inHg

4:00 AM

Light thunderstorms

70° 💧 None 💨 14 mph H 97%29.88 inHg

7:00 AM

Overcast

70° 💧 None 💨 11 mph H 96%29.88 inHg

10:00 AM

Light rain

74° 💧 None 💨 8 mph H 95%29.88 inHg

1:00 PM

Light rain

75° 💧 None 💨 9 mph H 91%29.83 inHg

4:00 PM

Overcast

80° 💧 None 💨 11 mph H 74%29.80 inHg

7:00 PM

Mostly cloudy

77° 💧 None 💨 6 mph H 86%29.80 inHg

10:00 PM

Mostly clear night

73° 💧 None 💨 8 mph H 88%29.83 inHg

Sunday

1:00 AM

Mostly cloudy night

68° 💧 None 💨 7 mph H 92%29.88 inHg

4:00 AM

Partly cloudy night

64° 💧 None 💨 8 mph H 94%29.88 inHg

7:00 AM

Mostly cloudy

61° 💧 None 💨 4 mph H 92%29.94 inHg

1:00 PM

Overcast

73° 💧 None 💨 10 mph H 65%29.97 inHg

7:00 PM

Mostly sunny

68° 💧 None 💨 7 mph H 77%29.97 inHg

Monday

1:00 AM

Overcast night

64° 💧 None 💨 9 mph H 84%30.06 inHg

7:00 AM

Mostly cloudy

59° 💧 None 💨 9 mph H 81%30.12 inHg

1:00 PM

Overcast

68° 💧 None 💨 13 mph H 59%30.15 inHg

7:00 PM

Sunny

63° 💧 None 💨 6 mph H 75%30.12 inHg

Tuesday

1:00 AM

Partly cloudy night

56° 💧 None 💨 7 mph H 89%30.21 inHg

7:00 AM

Mostly cloudy

52° 💧 None 💨 8 mph H 89%30.27 inHg

1:00 PM

Partly cloudy

66° 💧 None 💨 10 mph H 57%30.30 inHg

7:00 PM

Mostly cloudy

61° 💧 None 💨 8 mph H 73%30.24 inHg

Wednesday

1:00 AM

Mostly cloudy night

55° 💧 None 💨 8 mph H 76%30.30 inHg

7:00 AM

Partly cloudy

53° 💧 None 💨 7 mph H 93%30.33 inHg

1:00 PM

Mostly cloudy

66° 💧 None 💨 10 mph H 67%30.33 inHg

7:00 PM

Sunny

63° 💧 None 💨 7 mph H 78%30.24 inHg

Thursday

1:00 AM

Overcast night

58° 💧 None 💨 7 mph H 84%30.30 inHg

7:00 AM

Overcast

59° 💧 None 💨 6 mph H 85%30.30 inHg

1:00 PM

Overcast

66° 💧 None 💨 4 mph H 77%30.30 inHg

7:00 PM

Overcast

68° 💧 None 💨 2 mph H 85%30.24 inHg

Friday

1:00 AM

Overcast night

63° 💧 None 💨 4 mph H 93%30.24 inHg

7:00 AM

Mostly cloudy

62° 💧 None 💨 4 mph H 96%30.27 inHg

1:00 PM

Light rain

74° 💧 None 💨 4 mph H 75%30.24 inHg

7:00 PM

Overcast night

71° 💧 None 💨 2 mph H 85%30.18 inHg

Saturday

1:00 AM

Overcast night

67° 💧 None 💨 5 mph H 92%30.18 inHg

7:00 AM

Mostly cloudy

64° 💧 None 💨 6 mph H 96%30.18 inHg

1:00 PM

Mostly cloudy

74° 💧 None 💨 7 mph H 79%30.12 inHg

7:00 PM

Mostly cloudy night

73° 💧 None 💨 7 mph H 79%30.03 inHg

Sunday

1:00 AM

Mostly clear night

67° 💧 None 💨 10 mph H 83%30.00 inHg

7:00 AM

Light rain

62° 💧 None 💨 11 mph H 87%29.94 inHg

1:00 PM

Partly cloudy

75° 💧 None 💨 12 mph H 70%29.85 inHg

7:00 PM

Mostly clear night

73° 💧 None 💨 10 mph H 84%29.77 inHg

Monday

1:00 AM

Partly cloudy night

65° 💧 None 💨 8 mph H 97%29.83 inHg

7:00 AM

Sunny

62° 💧 None 💨 3 mph H 99%29.83 inHg

1:00 PM

Sunny

77° 💧 None 💨 5 mph H 69%29.85 inHg

7:00 PM

Clear night

72° 💧 None 💨 1 mph H 81%29.85 inHg

Tuesday

1:00 AM

Clear night

65° 💧 None 💨 4 mph H 93%29.91 inHg

7:00 AM

Partly cloudy

60° 💧 None 💨 1 mph H 100%29.97 inHg

In Monticello and, more broadly, across the state of Iowa: This evening, mostly cloudy skies will prevail as temperatures remain mild, hovering between 71 and 72 degrees Fahrenheit. There is a high likelihood of rain, with around 0.11 inches expected to accumulate, and the chance of precipitation reaching nearly 100%. Winds will be moderate from the southeast, reaching up to 16 mph, with gusts possibly gusting as high as 40 mph. These gusty conditions could cause some brief, localized gusts of wind. The rain is expected to taper off overnight, but the next few hours may bring periods of drizzle or light rain. Residents should be prepared for the possibility of wet conditions and gusty winds if venturing outdoors.

15-Day Weather Outlook for Monticello

TomorrowTomorrow

Light thunderstorms 73°/64° 💧 None 💨 16 mph

Wednesday, Sep 16Wed Sep 16

Light thunderstorms 68°/60° 💧 None 💨 10 mph

Thursday, Sep 17Thu Sep 17

Light thunderstorms 75°/64° 💧 2.685 in 💨 8 mph

Friday, Sep 18Fri Sep 18

Light rain 74°/64° 💧 0.181 in 💨 12 mph

Saturday, Sep 19Sat Sep 19

Light thunderstorms 80°/69° 💧 0.497 in 💨 14 mph

Sunday, Sep 20Sun Sep 20

Overcast 73°/61° 💧 0.001 in 💨 10 mph

Monday, Sep 21Mon Sep 21

Overcast 68°/59° 💧 None 💨 13 mph

Tuesday, Sep 22Tue Sep 22

Partly cloudy 66°/52° 💧 0.000 in 💨 10 mph

Wednesday, Sep 23Wed Sep 23

Mostly cloudy 66°/53° 💧 None 💨 10 mph

Thursday, Sep 24Thu Sep 24

Overcast 68°/58° 💧 0.010 in 💨 7 mph

Friday, Sep 25Fri Sep 25

Light rain 74°/62° 💧 0.109 in 💨 4 mph

Saturday, Sep 26Sat Sep 26

Mostly cloudy 74°/64° 💧 0.039 in 💨 7 mph

Sunday, Sep 27Sun Sep 27

Light rain 75°/62° 💧 0.133 in 💨 12 mph

Monday, Sep 28Mon Sep 28

Partly cloudy 77°/62° 💧 0.324 in 💨 8 mph

Tuesday, Sep 29Tue Sep 29

Partly cloudy 65°/60° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Monticello

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Monticello

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 8:00 PM

PM2.5 Fine particles Good 6,7µg/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 7,1µg/m³

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

O₃ Ozone Moderate 102,1µg/m³

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

NO₂ Nitrogen dioxide Good 2,0µg/m³

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

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Monticello

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 3,7Moderate 😐Moderate

Tomorrow UV 2,9Low 🙂Fair

Wednesday UV 1,8Low 🙂Fair

Thursday UV 5,0Moderate 🙂Fair

Friday UV 5,0Moderate 🙂Fair

Saturday UV 6,0High —Unavailable

Sunday UV 4,0Moderate —Unavailable

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor 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 Monticello

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MONTICELLO, IOWA

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 12:00 AM–1:00 AM.

68/100Best-hour score

BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 8:52 PM–5:09 AM

☁ Cloud cover 45% Real hourly forecast for the best viewing hour.

☾ Moonlight 12% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 39° high at the best hour.

✦ Estimated visible meteors 1–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min51%

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 Monticello were last refreshed today at 7:22 PM. The current forecast period extends through 16/09/2026 at 5:00 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.