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Current weather in Altona is clear sky.

Where can I find the hourly weather forecast for Altona?

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

Is the weather forecast for Altona updated regularly?

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

Now · 5:02 AM

Altona Weather & Hourly Forecast

United States · Colorado · 80302

52°F

Clear night

Feels like: 47°F

💧 Humidity 64% 🌡 Pressure 29.88 inHg 💨 Wind 4 mph 👁 Visibility 29.4 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Altona

Today

6:00 AM

Clear night

52° 💧 None 💨 4 mph H 64%29.88 inHg

9:00 AM

Partly cloudy

73° 💧 0.000 in 💨 1 mph H 33%29.88 inHg

12:00 PM

Strong thunderstorm

85° 💧 0.004 in 💨 8 mph H 20%29.83 inHg

3:00 PM

Mostly cloudy

87° 💧 0.009 in 💨 7 mph H 18%29.74 inHg

6:00 PM

Light rain

76° 💧 0.013 in 💨 12 mph H 36%29.74 inHg

9:00 PM

Partly cloudy night

68° 💧 0.001 in 💨 4 mph H 47%29.74 inHg

Tomorrow

12:00 AM

Mostly clear night

60° 💧 None 💨 3 mph H 59%29.74 inHg

3:00 AM

Partly cloudy night

58° 💧 None 💨 5 mph H 63%29.68 inHg

6:00 AM

Mostly cloudy night

58° 💧 None 💨 2 mph H 66%29.71 inHg

9:00 AM

Mostly cloudy

70° 💧 None 💨 3 mph H 45%29.77 inHg

12:00 PM

Mostly sunny

81° 💧 None 💨 4 mph H 26%29.74 inHg

3:00 PM

Mostly sunny

84° 💧 None 💨 10 mph H 18%29.68 inHg

6:00 PM

Mostly sunny

80° 💧 None 💨 8 mph H 20%29.68 inHg

9:00 PM

Mostly clear night

66° 💧 None 💨 6 mph H 39%29.80 inHg

Tuesday

12:00 AM

Mostly cloudy night

58° 💧 0.001 in 💨 5 mph H 61%29.91 inHg

3:00 AM

Partly cloudy night

59° 💧 0.000 in 💨 5 mph H 57%30.00 inHg

Today

6:00 AM

Clear night

52° 💧 None 💨 4 mph H 64%29.88 inHg

7:00 AM

Partly cloudy

52° 💧 None 💨 4 mph H 64%29.88 inHg

8:00 AM

Partly cloudy

61° 💧 None 💨 4 mph H 51%29.91 inHg

9:00 AM

Partly cloudy

73° 💧 0.000 in 💨 1 mph H 33%29.88 inHg

10:00 AM

Mostly sunny

79° 💧 None 💨 3 mph H 25%29.88 inHg

11:00 AM

Partly cloudy

83° 💧 None 💨 5 mph H 21%29.85 inHg

12:00 PM

Strong thunderstorm

85° 💧 None 💨 8 mph H 20%29.83 inHg

1:00 PM

Strong thunderstorm

86° 💧 0.001 in 💨 8 mph H 20%29.80 inHg

2:00 PM

Partly cloudy

87° 💧 0.002 in 💨 8 mph H 19%29.77 inHg

3:00 PM

Mostly cloudy

87° 💧 0.001 in 💨 7 mph H 18%29.74 inHg

4:00 PM

Light rain

85° 💧 0.005 in 💨 4 mph H 21%29.71 inHg

5:00 PM

Mostly cloudy

82° 💧 0.004 in 💨 10 mph H 25%29.71 inHg

6:00 PM

Light rain

76° 💧 0.006 in 💨 12 mph H 36%29.74 inHg

7:00 PM

Light rain

73° 💧 0.007 in 💨 6 mph H 45%29.71 inHg

8:00 PM

Partly cloudy night

67° 💧 None 💨 3 mph H 56%29.74 inHg

9:00 PM

Partly cloudy night

68° 💧 None 💨 4 mph H 47%29.74 inHg

10:00 PM

Clear night

65° 💧 0.001 in 💨 4 mph H 49%29.74 inHg

11:00 PM

Clear night

61° 💧 0.000 in 💨 3 mph H 58%29.74 inHg

Tomorrow

12:00 AM

Mostly clear night

60° 💧 None 💨 3 mph H 59%29.74 inHg

1:00 AM

Mostly clear night

60° 💧 None 💨 3 mph H 58%29.71 inHg

2:00 AM

Partly cloudy night

58° 💧 None 💨 4 mph H 61%29.71 inHg

3:00 AM

Partly cloudy night

58° 💧 None 💨 5 mph H 63%29.68 inHg

4:00 AM

Mostly cloudy night

57° 💧 None 💨 4 mph H 65%29.71 inHg

5:00 AM

Mostly cloudy night

59° 💧 None 💨 2 mph H 64%29.68 inHg

6:00 AM

Mostly cloudy night

58° 💧 None 💨 2 mph H 66%29.71 inHg

7:00 AM

Mostly cloudy

57° 💧 None 💨 2 mph H 69%29.74 inHg

8:00 AM

Mostly cloudy

63° 💧 None 💨 1 mph H 59%29.74 inHg

9:00 AM

Mostly cloudy

70° 💧 None 💨 3 mph H 45%29.77 inHg

10:00 AM

Mostly cloudy

74° 💧 None 💨 5 mph H 37%29.77 inHg

11:00 AM

Partly cloudy

77° 💧 None 💨 3 mph H 32%29.77 inHg

12:00 PM

Mostly sunny

81° 💧 None 💨 4 mph H 26%29.74 inHg

1:00 PM

Mostly sunny

83° 💧 None 💨 7 mph H 21%29.71 inHg

2:00 PM

Partly cloudy

84° 💧 None 💨 8 mph H 19%29.68 inHg

3:00 PM

Mostly sunny

84° 💧 None 💨 10 mph H 18%29.68 inHg

4:00 PM

Sunny

83° 💧 None 💨 10 mph H 18%29.68 inHg

5:00 PM

Sunny

82° 💧 None 💨 9 mph H 19%29.68 inHg

6:00 PM

Mostly sunny

80° 💧 None 💨 8 mph H 20%29.68 inHg

7:00 PM

Mostly sunny

75° 💧 None 💨 5 mph H 26%29.74 inHg

8:00 PM

Mostly clear night

71° 💧 None 💨 6 mph H 30%29.77 inHg

9:00 PM

Mostly clear night

66° 💧 None 💨 6 mph H 39%29.80 inHg

10:00 PM

Partly cloudy night

63° 💧 None 💨 5 mph H 47%29.85 inHg

11:00 PM

Partly cloudy night

60° 💧 None 💨 4 mph H 56%29.88 inHg

Tuesday

12:00 AM

Mostly cloudy night

58° 💧 None 💨 5 mph H 61%29.91 inHg

1:00 AM

Mostly cloudy night

59° 💧 0.001 in 💨 4 mph H 61%29.97 inHg

2:00 AM

Partly cloudy night

59° 💧 None 💨 5 mph H 63%30.00 inHg

3:00 AM

Partly cloudy night

59° 💧 0.000 in 💨 5 mph H 57%30.00 inHg

4:00 AM

Clear night

58° 💧 None 💨 1 mph H 58%30.03 inHg

5:00 AM

Clear night

55° 💧 None 💨 3 mph H 49%30.09 inHg

6:00 AM

Mostly clear night

53° 💧 None 💨 3 mph H 44%30.15 inHg

7:00 AM

Mostly sunny

53° 💧 None 💨 0 mph H 42%30.21 inHg

8:00 AM

Sunny

56° 💧 None 💨 0 mph H 33%30.21 inHg

9:00 AM

Sunny

58° 💧 None 💨 2 mph H 32%30.21 inHg

10:00 AM

Sunny

60° 💧 None 💨 3 mph H 32%30.21 inHg

11:00 AM

Mostly sunny

63° 💧 None 💨 4 mph H 29%30.18 inHg

12:00 PM

Mostly sunny

65° 💧 0.000 in 💨 5 mph H 28%30.15 inHg

1:00 PM

Mostly sunny

68° 💧 0.002 in 💨 5 mph H 28%30.12 inHg

2:00 PM

Mostly sunny

69° 💧 0.002 in 💨 5 mph H 30%30.09 inHg

3:00 PM

Mostly cloudy

71° 💧 0.002 in 💨 5 mph H 29%30.03 inHg

4:00 PM

Mostly cloudy

72° 💧 0.000 in 💨 3 mph H 28%30.00 inHg

5:00 PM

Mostly cloudy

73° 💧 None 💨 3 mph H 30%30.00 inHg

6:00 PM

Mostly cloudy

71° 💧 0.000 in 💨 2 mph H 33%30.00 inHg

9:00 PM

Mostly cloudy night

66° 💧 None 💨 2 mph H 46%30.03 inHg

Wednesday

12:00 AM

Mostly cloudy night

61° 💧 None 💨 5 mph H 54%30.06 inHg

3:00 AM

Mostly cloudy night

57° 💧 None 💨 2 mph H 66%30.03 inHg

6:00 AM

Mostly cloudy night

55° 💧 None 💨 1 mph H 69%30.06 inHg

9:00 AM

Mostly cloudy

62° 💧 None 💨 2 mph H 54%30.09 inHg

12:00 PM

Partly cloudy

76° 💧 None 💨 5 mph H 33%30.03 inHg

3:00 PM

Light rain

79° 💧 None 💨 6 mph H 32%29.97 inHg

6:00 PM

Light rain

74° 💧 None 💨 4 mph H 39%30.03 inHg

9:00 PM

Partly cloudy night

64° 💧 None 💨 4 mph H 64%30.09 inHg

Thursday

12:00 AM

Mostly cloudy night

59° 💧 None 💨 2 mph H 69%30.12 inHg

3:00 AM

Mostly cloudy night

58° 💧 None 💨 2 mph H 69%30.12 inHg

6:00 AM

Overcast night

59° 💧 None 💨 1 mph H 69%30.15 inHg

9:00 AM

Overcast

68° 💧 None 💨 2 mph H 47%30.18 inHg

12:00 PM

Overcast

75° 💧 None 💨 4 mph H 42%30.12 inHg

3:00 PM

Light rain

73° 💧 None 💨 8 mph H 48%30.03 inHg

6:00 PM

Light rain

67° 💧 None 💨 3 mph H 70%30.06 inHg

9:00 PM

Light rain

60° 💧 None 💨 4 mph H 98%30.15 inHg

Friday

12:00 AM

Mostly cloudy night

58° 💧 None 💨 3 mph H 97%30.06 inHg

3:00 AM

Overcast night

56° 💧 None 💨 2 mph H 95%30.03 inHg

6:00 AM

Partly cloudy night

54° 💧 None 💨 3 mph H 93%30.03 inHg

9:00 AM

Sunny

66° 💧 None 💨 1 mph H 58%30.03 inHg

12:00 PM

Mostly sunny

78° 💧 None 💨 7 mph H 38%29.94 inHg

3:00 PM

Light rain

74° 💧 None 💨 2 mph H 45%29.94 inHg

6:00 PM

Partly cloudy

73° 💧 None 💨 4 mph H 44%29.94 inHg

Saturday

12:00 AM

Clear night

57° 💧 None 💨 5 mph H 66%29.91 inHg

6:00 AM

Mostly clear night

54° 💧 None 💨 6 mph H 69%29.91 inHg

12:00 PM

Light rain

72° 💧 None 💨 7 mph H 42%29.94 inHg

6:00 PM

Mostly sunny

67° 💧 None 💨 1 mph H 52%29.88 inHg

Sunday

12:00 AM

Clear night

51° 💧 None 💨 3 mph H 79%29.94 inHg

6:00 AM

Partly cloudy night

49° 💧 None 💨 1 mph H 83%29.94 inHg

12:00 PM

Partly cloudy

68° 💧 None 💨 2 mph H 44%29.94 inHg

6:00 PM

Partly cloudy

63° 💧 None 💨 3 mph H 53%29.94 inHg

Monday

12:00 AM

Mostly cloudy night

52° 💧 None 💨 3 mph H 82%30.06 inHg

6:00 AM

Mostly cloudy night

49° 💧 None 💨 3 mph H 79%30.09 inHg

12:00 PM

Partly cloudy

63° 💧 None 💨 5 mph H 48%30.15 inHg

6:00 PM

Mostly sunny

64° 💧 None 💨 4 mph H 46%30.06 inHg

Tuesday

12:00 AM

Clear night

48° 💧 None 💨 5 mph H 85%30.12 inHg

6:00 AM

Partly cloudy night

40° 💧 None 💨 2 mph H 82%30.12 inHg

12:00 PM

Mostly sunny

67° 💧 None 💨 5 mph H 39%30.06 inHg

6:00 PM

Overcast

68° 💧 None 💨 2 mph H 29%29.94 inHg

Wednesday

12:00 AM

Mostly clear night

47° 💧 None 💨 2 mph H 73%29.97 inHg

6:00 AM

Clear night

44° 💧 None 💨 1 mph H 70%29.97 inHg

12:00 PM

Mostly sunny

70° 💧 None 💨 6 mph H 33%29.91 inHg

6:00 PM

Mostly sunny

72° 💧 None 💨 2 mph H 30%29.80 inHg

Thursday

12:00 AM

Clear night

54° 💧 None 💨 6 mph H 61%29.83 inHg

6:00 AM

Clear night

47° 💧 None 💨 4 mph H 77%29.85 inHg

12:00 PM

Mostly sunny

76° 💧 None 💨 7 mph H 26%29.83 inHg

6:00 PM

Partly cloudy

66° 💧 None 💨 6 mph H 58%29.83 inHg

Friday

12:00 AM

Clear night

55° 💧 None 💨 5 mph H 60%29.85 inHg

6:00 AM

Clear night

50° 💧 None 💨 3 mph H 71%29.91 inHg

12:00 PM

Mostly sunny

71° 💧 None 💨 7 mph H 35%29.91 inHg

6:00 PM

Partly cloudy

65° 💧 None 💨 2 mph H 59%29.91 inHg

Saturday

12:00 AM

Mostly clear night

52° 💧 None 💨 1 mph H 92%30.03 inHg

6:00 AM

Partly cloudy night

51° 💧 None 💨 1 mph H 85%30.09 inHg

12:00 PM

Mostly sunny

65° 💧 None 💨 4 mph H 51%30.09 inHg

6:00 PM

Sunny

68° 💧 None 💨 4 mph H 44%30.06 inHg

Sunday

12:00 AM

Mostly clear night

51° 💧 None 💨 1 mph H 89%30.18 inHg

6:00 AM

Mostly clear night

47° 💧 None 💨 1 mph H 87%30.18 inHg

12:00 PM

Sunny

67° 💧 None 💨 5 mph H 48%30.06 inHg

In Altona and, more broadly, across the state of Colorado: The evening will be mostly cloudy with mild temperatures around 69 degrees. Light southwest winds will prevail, reaching up to 7 mph, with gusts up to 8 mph. No precipitation is expected during the next few hours, making for a relatively calm and comfortable night. Temperatures will remain steady, providing a mild and pleasant evening for outdoor activities or relaxing indoors. Winds will stay light throughout the night, contributing to a gentle and stable atmosphere. Overall, tonight looks to be calm and mild, with no significant weather disturbances expected.

15-Day Weather Outlook for Altona

TomorrowTomorrow

Partly cloudy 84°/57° 💧 None 💨 12 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 80°/53° 💧 None 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Light rain 79°/55° 💧 0.055 in 💨 6 mph

Thursday, Sep 17Thu Sep 17

Light rain 75°/58° 💧 0.033 in 💨 8 mph

Friday, Sep 18Fri Sep 18

Light rain 78°/54° 💧 0.158 in 💨 7 mph

Saturday, Sep 19Sat Sep 19

Light rain 73°/54° 💧 0.032 in 💨 7 mph

Sunday, Sep 20Sun Sep 20

Partly cloudy 68°/49° 💧 0.100 in 💨 3 mph

Monday, Sep 21Mon Sep 21

Partly cloudy 63°/49° 💧 0.178 in 💨 5 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 67°/40° 💧 0.002 in 💨 5 mph

Wednesday, Sep 23Wed Sep 23

Overcast 70°/44° 💧 None 💨 6 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 76°/47° 💧 0.001 in 💨 7 mph

Friday, Sep 25Fri Sep 25

Partly cloudy 71°/50° 💧 0.043 in 💨 7 mph

Saturday, Sep 26Sat Sep 26

Partly cloudy 65°/51° 💧 0.063 in 💨 4 mph

Sunday, Sep 27Sun Sep 27

Mostly sunny 68°/47° 💧 0.004 in 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Altona

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Altona

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 6:00 AM

PM2.5 Fine particles Good 1,2µg/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 1,6µg/m³

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

O₃ Ozone Good 33,9µg/m³

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

NO₂ Nitrogen dioxide Good 1,7µg/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 Altona

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 7,7High 😊Good

Tomorrow UV 7,7High 😊Good

Tuesday UV 7,2High 😊Good

Wednesday UV 7,1High 😊Good

Thursday UV 6,0High 😊Good

Friday UV 7,0High —Unavailable

Saturday UV 6,0High —Unavailable

Hourly UV index today

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

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 Altona

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ALTONA, COLORADO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 6:00 AM–7:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 6:00 AM–7:00 AM Astronomical darkness: 8:47 PM–5:08 AM

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

☾ Moonlight 3% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 75° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min80%

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 Altona were last refreshed today at 5:02 AM. The current forecast period extends through 15/09/2026 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.