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Current weather in Thornton is overcast clouds.

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

Now · 8:47 AM

Thornton Weather & Hourly Forecast

United States · Iowa · 50479

53°F

Overcast

Feels like: 48°F

💧 Humidity 82% 🌡 Pressure 30.33 inHg 💨 Wind 8 mph 👁 Visibility 20.6 mi ☁ Clouds 100% ☀️ UV index 0.1 · Low 🌅 Sunrise 6:59 AM 🌇 Sunset 7:12 PM

Hourly Forecast for Thornton

Today

9:00 AM

Overcast

53° 💧 0.000 in 💨 8 mph H 82%30.33 inHg

12:00 PM

Overcast

57° 💧 None 💨 9 mph H 76%30.33 inHg

3:00 PM

Overcast

60° 💧 0.001 in 💨 10 mph H 74%30.30 inHg

6:00 PM

Mostly cloudy

58° 💧 None 💨 10 mph H 73%30.30 inHg

9:00 PM

Mostly cloudy night

55° 💧 None 💨 7 mph H 74%30.33 inHg

Tomorrow

12:00 AM

Mostly clear night

51° 💧 0.000 in 💨 7 mph H 83%30.36 inHg

3:00 AM

Partly cloudy night

48° 💧 None 💨 5 mph H 90%30.36 inHg

6:00 AM

Clear night

47° 💧 None 💨 6 mph H 93%30.36 inHg

9:00 AM

Sunny

51° 💧 None 💨 6 mph H 85%30.42 inHg

12:00 PM

Mostly cloudy

61° 💧 None 💨 8 mph H 66%30.39 inHg

3:00 PM

Overcast

64° 💧 None 💨 9 mph H 56%30.33 inHg

6:00 PM

Mostly cloudy

63° 💧 None 💨 8 mph H 65%30.30 inHg

9:00 PM

Mostly clear night

57° 💧 None 💨 7 mph H 84%30.30 inHg

Thursday

12:00 AM

Overcast night

56° 💧 None 💨 7 mph H 92%30.33 inHg

3:00 AM

Overcast night

57° 💧 None 💨 7 mph H 90%30.33 inHg

6:00 AM

Overcast night

56° 💧 None 💨 7 mph H 90%30.30 inHg

Today

9:00 AM

Overcast

53° 💧 0.000 in 💨 8 mph H 82%30.33 inHg

10:00 AM

Overcast

54° 💧 0.000 in 💨 8 mph H 81%30.33 inHg

11:00 AM

Overcast

55° 💧 None 💨 9 mph H 80%30.33 inHg

12:00 PM

Overcast

57° 💧 None 💨 9 mph H 76%30.33 inHg

1:00 PM

Overcast

58° 💧 None 💨 9 mph H 76%30.33 inHg

2:00 PM

Overcast

58° 💧 None 💨 10 mph H 76%30.30 inHg

3:00 PM

Overcast

60° 💧 0.000 in 💨 10 mph H 74%30.30 inHg

4:00 PM

Overcast

59° 💧 0.000 in 💨 9 mph H 74%30.30 inHg

5:00 PM

Overcast

59° 💧 None 💨 10 mph H 73%30.30 inHg

6:00 PM

Mostly cloudy

58° 💧 None 💨 10 mph H 73%30.30 inHg

7:00 PM

Mostly cloudy

57° 💧 None 💨 8 mph H 74%30.30 inHg

8:00 PM

Mostly cloudy night

56° 💧 None 💨 9 mph H 73%30.30 inHg

9:00 PM

Mostly cloudy night

55° 💧 None 💨 7 mph H 74%30.33 inHg

10:00 PM

Partly cloudy night

54° 💧 None 💨 7 mph H 77%30.33 inHg

11:00 PM

Mostly clear night

52° 💧 None 💨 8 mph H 80%30.36 inHg

Tomorrow

12:00 AM

Mostly clear night

51° 💧 None 💨 7 mph H 83%30.36 inHg

1:00 AM

Mostly clear night

50° 💧 0.000 in 💨 6 mph H 85%30.36 inHg

2:00 AM

Partly cloudy night

49° 💧 None 💨 5 mph H 87%30.36 inHg

3:00 AM

Partly cloudy night

48° 💧 None 💨 5 mph H 90%30.36 inHg

4:00 AM

Partly cloudy night

48° 💧 None 💨 5 mph H 92%30.36 inHg

5:00 AM

Mostly clear night

47° 💧 None 💨 5 mph H 92%30.36 inHg

6:00 AM

Clear night

47° 💧 None 💨 6 mph H 93%30.36 inHg

7:00 AM

Clear night

46° 💧 None 💨 7 mph H 94%30.39 inHg

8:00 AM

Sunny

48° 💧 None 💨 7 mph H 91%30.39 inHg

9:00 AM

Sunny

51° 💧 None 💨 6 mph H 85%30.42 inHg

10:00 AM

Sunny

54° 💧 None 💨 7 mph H 81%30.42 inHg

11:00 AM

Sunny

58° 💧 None 💨 8 mph H 74%30.42 inHg

12:00 PM

Mostly cloudy

61° 💧 None 💨 8 mph H 66%30.39 inHg

1:00 PM

Mostly cloudy

62° 💧 None 💨 9 mph H 60%30.36 inHg

2:00 PM

Mostly cloudy

63° 💧 None 💨 9 mph H 59%30.36 inHg

3:00 PM

Overcast

64° 💧 None 💨 9 mph H 56%30.33 inHg

4:00 PM

Mostly cloudy

65° 💧 None 💨 9 mph H 57%30.33 inHg

5:00 PM

Mostly cloudy

64° 💧 None 💨 9 mph H 58%30.30 inHg

6:00 PM

Mostly cloudy

63° 💧 None 💨 8 mph H 65%30.30 inHg

7:00 PM

Partly cloudy

59° 💧 None 💨 6 mph H 74%30.30 inHg

8:00 PM

Partly cloudy night

57° 💧 None 💨 6 mph H 80%30.30 inHg

9:00 PM

Mostly clear night

57° 💧 None 💨 7 mph H 84%30.30 inHg

10:00 PM

Overcast night

56° 💧 None 💨 8 mph H 90%30.33 inHg

11:00 PM

Partly cloudy night

56° 💧 None 💨 8 mph H 92%30.33 inHg

Thursday

12:00 AM

Overcast night

56° 💧 None 💨 7 mph H 92%30.33 inHg

1:00 AM

Overcast night

57° 💧 None 💨 7 mph H 91%30.33 inHg

2:00 AM

Overcast night

57° 💧 None 💨 6 mph H 90%30.33 inHg

3:00 AM

Overcast night

57° 💧 None 💨 7 mph H 90%30.33 inHg

4:00 AM

Overcast night

57° 💧 None 💨 8 mph H 90%30.30 inHg

5:00 AM

Overcast night

57° 💧 None 💨 8 mph H 90%30.30 inHg

6:00 AM

Overcast night

56° 💧 None 💨 7 mph H 90%30.30 inHg

7:00 AM

Overcast night

56° 💧 None 💨 7 mph H 90%30.30 inHg

8:00 AM

Overcast

57° 💧 None 💨 7 mph H 88%30.33 inHg

9:00 AM

Overcast

57° 💧 0.002 in 💨 7 mph H 88%30.33 inHg

10:00 AM

Light rain

58° 💧 0.008 in 💨 7 mph H 89%30.33 inHg

11:00 AM

Light rain

58° 💧 0.018 in 💨 6 mph H 91%30.33 inHg

12:00 PM

Light rain

59° 💧 0.036 in 💨 6 mph H 91%30.33 inHg

1:00 PM

Light rain

59° 💧 0.040 in 💨 7 mph H 91%30.30 inHg

2:00 PM

Light rain

60° 💧 0.020 in 💨 8 mph H 89%30.27 inHg

3:00 PM

Light rain

63° 💧 0.008 in 💨 9 mph H 77%30.27 inHg

4:00 PM

Overcast

64° 💧 0.001 in 💨 8 mph H 72%30.24 inHg

5:00 PM

Overcast

65° 💧 None 💨 8 mph H 70%30.24 inHg

6:00 PM

Overcast

64° 💧 None 💨 6 mph H 74%30.24 inHg

7:00 PM

Overcast

62° 💧 None 💨 6 mph H 78%30.24 inHg

Friday

4:00 AM

Overcast night

54° 💧 None 💨 4 mph H 96%30.27 inHg

7:00 AM

Overcast night

54° 💧 None 💨 6 mph H 96%30.27 inHg

10:00 AM

Overcast

58° 💧 None 💨 7 mph H 92%30.27 inHg

1:00 PM

Overcast

66° 💧 None 💨 12 mph H 71%30.24 inHg

4:00 PM

Light rain

65° 💧 None 💨 10 mph H 81%30.18 inHg

7:00 PM

Overcast

62° 💧 None 💨 10 mph H 88%30.15 inHg

10:00 PM

Overcast night

61° 💧 None 💨 11 mph H 90%30.15 inHg

Saturday

1:00 AM

Light rain

60° 💧 None 💨 13 mph H 95%30.12 inHg

4:00 AM

Moderate rain

59° 💧 None 💨 13 mph H 95%30.09 inHg

7:00 AM

Moderate rain

58° 💧 None 💨 14 mph H 94%30.06 inHg

10:00 AM

Moderate rain

58° 💧 None 💨 14 mph H 94%30.06 inHg

1:00 PM

Overcast

62° 💧 None 💨 16 mph H 89%30.03 inHg

4:00 PM

Overcast

66° 💧 None 💨 15 mph H 80%29.97 inHg

7:00 PM

Overcast

64° 💧 None 💨 12 mph H 86%29.97 inHg

10:00 PM

Overcast night

62° 💧 None 💨 12 mph H 85%30.00 inHg

Sunday

1:00 AM

Light rain

61° 💧 None 💨 10 mph H 87%30.00 inHg

4:00 AM

Partly cloudy night

59° 💧 None 💨 8 mph H 93%30.00 inHg

7:00 AM

Overcast night

58° 💧 None 💨 8 mph H 94%30.00 inHg

10:00 AM

Mostly sunny

62° 💧 None 💨 8 mph H 86%30.03 inHg

1:00 PM

Sunny

72° 💧 None 💨 4 mph H 71%30.00 inHg

4:00 PM

Sunny

75° 💧 None 💨 6 mph H 70%29.94 inHg

7:00 PM

Sunny

68° 💧 None 💨 6 mph H 85%29.94 inHg

10:00 PM

Clear night

64° 💧 None 💨 7 mph H 93%29.97 inHg

Monday

1:00 AM

Clear night

61° 💧 None 💨 6 mph H 96%29.97 inHg

7:00 AM

Clear night

61° 💧 None 💨 6 mph H 96%30.00 inHg

1:00 PM

Sunny

57° 💧 None 💨 5 mph H 97%30.00 inHg

7:00 PM

Partly cloudy

73° 💧 None 💨 7 mph H 67%29.97 inHg

Tuesday

1:00 AM

Clear night

68° 💧 None 💨 7 mph H 80%29.88 inHg

7:00 AM

Overcast night

60° 💧 None 💨 5 mph H 92%29.94 inHg

1:00 PM

Partly cloudy

57° 💧 None 💨 8 mph H 93%29.91 inHg

7:00 PM

Overcast

72° 💧 None 💨 10 mph H 57%29.91 inHg

Wednesday

1:00 AM

Overcast night

66° 💧 None 💨 10 mph H 69%29.88 inHg

7:00 AM

Heavy rain

60° 💧 None 💨 9 mph H 85%29.91 inHg

1:00 PM

Light rain

58° 💧 None 💨 11 mph H 88%29.97 inHg

7:00 PM

Overcast night

62° 💧 None 💨 9 mph H 75%30.00 inHg

Thursday

1:00 AM

Overcast night

61° 💧 None 💨 11 mph H 86%29.97 inHg

7:00 AM

Overcast night

63° 💧 None 💨 12 mph H 80%30.00 inHg

1:00 PM

Moderate rain

60° 💧 None 💨 10 mph H 90%30.06 inHg

7:00 PM

Overcast night

68° 💧 None 💨 10 mph H 75%30.03 inHg

Friday

1:00 AM

Overcast night

66° 💧 None 💨 10 mph H 81%30.00 inHg

7:00 AM

Partly cloudy night

65° 💧 None 💨 10 mph H 79%30.00 inHg

1:00 PM

Overcast

64° 💧 None 💨 9 mph H 81%30.03 inHg

7:00 PM

Mostly cloudy night

77° 💧 None 💨 9 mph H 62%30.00 inHg

Saturday

1:00 AM

Mostly clear night

72° 💧 None 💨 8 mph H 77%29.97 inHg

7:00 AM

Clear night

67° 💧 None 💨 8 mph H 86%29.97 inHg

1:00 PM

Sunny

64° 💧 None 💨 8 mph H 86%29.97 inHg

7:00 PM

Overcast night

74° 💧 None 💨 11 mph H 73%29.94 inHg

Sunday

1:00 AM

Mostly clear night

70° 💧 None 💨 10 mph H 82%29.85 inHg

7:00 AM

Light rain

66° 💧 None 💨 10 mph H 96%29.85 inHg

1:00 PM

Overcast

61° 💧 None 💨 15 mph H 78%29.97 inHg

7:00 PM

Overcast night

62° 💧 None 💨 16 mph H 57%30.12 inHg

Monday

1:00 AM

Clear night

56° 💧 None 💨 10 mph H 59%30.18 inHg

7:00 AM

Overcast night

50° 💧 None 💨 7 mph H 79%30.27 inHg

1:00 PM

Overcast

45° 💧 None 💨 5 mph H 87%30.30 inHg

7:00 PM

Mostly cloudy night

59° 💧 None 💨 3 mph H 51%30.27 inHg

Tuesday

1:00 AM

Overcast night

56° 💧 None 💨 2 mph H 68%30.18 inHg

7:00 AM

Overcast night

52° 💧 None 💨 3 mph H 72%30.18 inHg

1:00 PM

Mostly sunny

46° 💧 None 💨 3 mph H 88%30.15 inHg

7:00 PM

Mostly clear night

62° 💧 None 💨 6 mph H 54%30.12 inHg

Wednesday

1:00 AM

Clear night

57° 💧 None 💨 5 mph H 69%30.09 inHg

In Thornton and, more broadly, across the state of Iowa: This morning will start with mostly cloudy skies and cool temperatures ranging from 56 to 58 degrees Fahrenheit. Expect moderate northeast winds at around 11 mph, with gusts reaching up to 20 mph. There is a high likelihood of rain, with possible accumulation totaling around half an inch. As the day progresses into the afternoon, the clouds will remain, and temperatures will stay within the same cool range. The wind will continue to blow from the northeast, maintaining similar speeds and gusts. Overall, the weather remains unsettled, making it a good idea to carry an umbrella if you're heading outdoors. Conditions will stay relatively cool and breezy throughout the day, with rain chances persisting into the afternoon hours.

15-Day Weather Outlook for Thornton

TomorrowTomorrow

Mostly sunny 65°/46° 💧 None 💨 9 mph

Thursday, Sep 24Thu Sep 24

Overcast 65°/56° 💧 None 💨 9 mph

Friday, Sep 25Fri Sep 25

Light rain 66°/54° 💧 0.067 in 💨 12 mph

Saturday, Sep 26Sat Sep 26

Moderate rain 66°/58° 💧 0.824 in 💨 16 mph

Sunday, Sep 27Sun Sep 27

Light rain 75°/58° 💧 0.025 in 💨 10 mph

Monday, Sep 28Mon Sep 28

Partly cloudy 73°/57° 💧 None 💨 7 mph

Tuesday, Sep 29Tue Sep 29

Overcast 72°/57° 💧 None 💨 10 mph

Wednesday, Sep 30Wed Sep 30

Heavy rain 66°/58° 💧 0.615 in 💨 11 mph

Thursday, Oct 1Thu Oct 1

Moderate rain 68°/60° 💧 0.303 in 💨 12 mph

Friday, Oct 2Fri Oct 2

Overcast 77°/64° 💧 0.016 in 💨 10 mph

Saturday, Oct 3Sat Oct 3

Overcast 74°/64° 💧 0.008 in 💨 11 mph

Sunday, Oct 4Sun Oct 4

Light rain 70°/61° 💧 0.330 in 💨 16 mph

Monday, Oct 5Mon Oct 5

Overcast 59°/45° 💧 None 💨 10 mph

Tuesday, Oct 6Tue Oct 6

Overcast 62°/46° 💧 None 💨 6 mph

Wednesday, Oct 7Wed Oct 7

Sunny 57°/57° 💧 None 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Thornton

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Thornton

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 9:00 AM

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

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

O₃ Ozone Good 44,5µg/m³

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

NO₂ Nitrogen dioxide Good 3,3µg/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 Thornton

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 1,2Low 😊Good

Tomorrow UV 5,7Moderate 🙂Fair

Thursday UV 0,8Low 🙂Fair

Friday UV 0,9Low 🙂Fair

Saturday UV 3,0Moderate 🙂Fair

Sunday UV 4,0Moderate —Unavailable

Monday UV 5,0Moderate —Unavailable

Hourly UV index today

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

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

Low UV risk

UV radiation will be low, although basic protection is still advisable during prolonged exposure.

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 Thornton

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · THORNTON, IOWA

Tonight's Stargazing & Shooting Stars

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

81/100Best-hour score

BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 8:46 PM–5:27 AM

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

☾ Moonlight 87% Waxing Gibbous · Moon about 27° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 26° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min24%

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

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 Thornton were last refreshed today at 8:47 AM. The current forecast period extends through 24/09/2026 at 6:00 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.