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Current weather in Harper is clear sky.

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

Now · 12:46 PM

Harper Weather & Hourly Forecast

United States · Kansas · 67058

100°F

Sunny

Feels like: 97°F

💧 Humidity 28% 🌡 Pressure 29.88 inHg 💨 Wind 12 mph 👁 Visibility 31.0 mi ☁ Clouds 2% ☀️ UV index 7.3 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Harper

Today

1:00 PM

Sunny

100° 💧 0.001 in 💨 12 mph H 28%29.88 inHg

4:00 PM

Mostly sunny

103° 💧 None 💨 13 mph H 22%29.80 inHg

7:00 PM

Mostly sunny

100° 💧 None 💨 13 mph H 23%29.80 inHg

10:00 PM

Clear night

93° 💧 None 💨 12 mph H 30%29.85 inHg

Tomorrow

1:00 AM

Clear night

88° 💧 None 💨 11 mph H 40%29.88 inHg

4:00 AM

Clear night

86° 💧 None 💨 12 mph H 46%29.91 inHg

7:00 AM

Clear night

84° 💧 None 💨 10 mph H 47%29.94 inHg

10:00 AM

Sunny

91° 💧 None 💨 12 mph H 40%29.94 inHg

1:00 PM

Sunny

101° 💧 0.000 in 💨 14 mph H 29%29.91 inHg

4:00 PM

Strong thunderstorm

103° 💧 0.000 in 💨 13 mph H 24%29.85 inHg

7:00 PM

Mostly sunny

99° 💧 None 💨 13 mph H 26%29.85 inHg

10:00 PM

Clear night

94° 💧 None 💨 10 mph H 31%29.91 inHg

Wednesday

1:00 AM

Clear night

90° 💧 None 💨 11 mph H 33%29.94 inHg

4:00 AM

Clear night

87° 💧 None 💨 12 mph H 45%29.94 inHg

7:00 AM

Clear night

85° 💧 None 💨 10 mph H 48%29.97 inHg

10:00 AM

Sunny

92° 💧 0.001 in 💨 12 mph H 39%29.97 inHg

Today

1:00 PM

Sunny

100° 💧 0.000 in 💨 12 mph H 28%29.88 inHg

2:00 PM

Mostly sunny

102° 💧 None 💨 13 mph H 25%29.85 inHg

3:00 PM

Mostly sunny

102° 💧 0.000 in 💨 13 mph H 25%29.83 inHg

4:00 PM

Mostly sunny

103° 💧 None 💨 13 mph H 22%29.80 inHg

5:00 PM

Mostly sunny

103° 💧 None 💨 12 mph H 21%29.80 inHg

6:00 PM

Mostly sunny

102° 💧 None 💨 13 mph H 21%29.77 inHg

7:00 PM

Mostly sunny

100° 💧 None 💨 13 mph H 23%29.80 inHg

8:00 PM

Clear night

96° 💧 None 💨 10 mph H 26%29.80 inHg

9:00 PM

Clear night

94° 💧 None 💨 11 mph H 28%29.83 inHg

10:00 PM

Clear night

93° 💧 None 💨 12 mph H 30%29.85 inHg

11:00 PM

Clear night

91° 💧 None 💨 9 mph H 32%29.88 inHg

Tomorrow

12:00 AM

Clear night

89° 💧 None 💨 9 mph H 36%29.88 inHg

1:00 AM

Clear night

88° 💧 None 💨 11 mph H 40%29.88 inHg

2:00 AM

Clear night

88° 💧 None 💨 11 mph H 42%29.88 inHg

3:00 AM

Clear night

87° 💧 None 💨 12 mph H 45%29.91 inHg

4:00 AM

Clear night

86° 💧 None 💨 12 mph H 46%29.91 inHg

5:00 AM

Clear night

86° 💧 None 💨 11 mph H 46%29.91 inHg

6:00 AM

Clear night

85° 💧 None 💨 11 mph H 46%29.94 inHg

7:00 AM

Clear night

84° 💧 None 💨 10 mph H 47%29.94 inHg

8:00 AM

Sunny

85° 💧 None 💨 10 mph H 46%29.94 inHg

9:00 AM

Sunny

88° 💧 None 💨 11 mph H 43%29.97 inHg

10:00 AM

Sunny

91° 💧 None 💨 12 mph H 40%29.94 inHg

11:00 AM

Sunny

95° 💧 None 💨 14 mph H 36%29.94 inHg

12:00 PM

Sunny

98° 💧 None 💨 14 mph H 32%29.94 inHg

1:00 PM

Sunny

101° 💧 None 💨 14 mph H 29%29.91 inHg

2:00 PM

Sunny

102° 💧 0.000 in 💨 14 mph H 27%29.88 inHg

3:00 PM

Strong thunderstorm

103° 💧 None 💨 13 mph H 25%29.85 inHg

4:00 PM

Strong thunderstorm

103° 💧 None 💨 13 mph H 24%29.85 inHg

5:00 PM

Mostly sunny

103° 💧 None 💨 13 mph H 24%29.83 inHg

6:00 PM

Mostly sunny

101° 💧 0.000 in 💨 12 mph H 24%29.85 inHg

7:00 PM

Mostly sunny

99° 💧 None 💨 13 mph H 26%29.85 inHg

8:00 PM

Mostly clear night

97° 💧 None 💨 10 mph H 28%29.85 inHg

9:00 PM

Mostly clear night

95° 💧 None 💨 11 mph H 29%29.88 inHg

10:00 PM

Clear night

94° 💧 None 💨 10 mph H 31%29.91 inHg

11:00 PM

Clear night

92° 💧 None 💨 11 mph H 34%29.94 inHg

Wednesday

12:00 AM

Clear night

92° 💧 None 💨 12 mph H 32%29.94 inHg

1:00 AM

Clear night

90° 💧 None 💨 11 mph H 33%29.94 inHg

2:00 AM

Clear night

88° 💧 None 💨 11 mph H 37%29.94 inHg

3:00 AM

Clear night

88° 💧 None 💨 12 mph H 41%29.94 inHg

4:00 AM

Clear night

87° 💧 None 💨 12 mph H 45%29.94 inHg

5:00 AM

Clear night

86° 💧 None 💨 12 mph H 46%29.97 inHg

6:00 AM

Clear night

85° 💧 None 💨 10 mph H 47%29.97 inHg

7:00 AM

Clear night

85° 💧 None 💨 10 mph H 48%29.97 inHg

8:00 AM

Sunny

86° 💧 None 💨 10 mph H 47%29.97 inHg

9:00 AM

Sunny

89° 💧 None 💨 11 mph H 42%29.97 inHg

10:00 AM

Sunny

92° 💧 None 💨 12 mph H 39%29.97 inHg

11:00 AM

Partly cloudy

96° 💧 None 💨 10 mph H 34%29.97 inHg

12:00 PM

Strong thunderstorm

96° 💧 0.001 in 💨 8 mph H 34%30.00 inHg

1:00 PM

Mostly sunny

97° 💧 0.002 in 💨 7 mph H 32%29.97 inHg

2:00 PM

Strong thunderstorm

100° 💧 0.001 in 💨 7 mph H 28%29.94 inHg

3:00 PM

Strong thunderstorm

101° 💧 0.000 in 💨 6 mph H 27%29.88 inHg

4:00 PM

Light thunderstorms

95° 💧 0.030 in 💨 10 mph H 38%29.91 inHg

5:00 PM

Light thunderstorms

96° 💧 0.012 in 💨 1 mph H 33%29.91 inHg

6:00 PM

Partly cloudy

93° 💧 0.004 in 💨 9 mph H 40%29.91 inHg

7:00 PM

Partly cloudy

88° 💧 0.003 in 💨 10 mph H 54%29.94 inHg

Thursday

4:00 AM

Partly cloudy night

76° 💧 None 💨 6 mph H 88%29.97 inHg

7:00 AM

Mostly clear night

74° 💧 None 💨 2 mph H 95%29.97 inHg

10:00 AM

Light rain

76° 💧 None 💨 1 mph H 88%30.00 inHg

1:00 PM

Overcast

85° 💧 None 💨 5 mph H 60%29.97 inHg

4:00 PM

Mostly sunny

87° 💧 None 💨 6 mph H 56%29.91 inHg

7:00 PM

Overcast

83° 💧 None 💨 7 mph H 65%29.88 inHg

10:00 PM

Light thunderstorms

72° 💧 None 💨 11 mph H 93%29.97 inHg

Friday

1:00 AM

Light rain

72° 💧 None 💨 5 mph H 97%29.88 inHg

4:00 AM

Overcast night

72° 💧 None 💨 3 mph H 97%29.88 inHg

7:00 AM

Overcast night

72° 💧 None 💨 8 mph H 96%29.85 inHg

10:00 AM

Partly cloudy

77° 💧 None 💨 11 mph H 78%29.85 inHg

1:00 PM

Sunny

86° 💧 None 💨 12 mph H 61%29.80 inHg

4:00 PM

Sunny

89° 💧 None 💨 14 mph H 55%29.68 inHg

7:00 PM

Mostly sunny

86° 💧 None 💨 9 mph H 64%29.68 inHg

10:00 PM

Clear night

81° 💧 None 💨 10 mph H 74%29.74 inHg

Saturday

1:00 AM

Clear night

78° 💧 None 💨 8 mph H 79%29.77 inHg

4:00 AM

Clear night

76° 💧 None 💨 5 mph H 85%29.77 inHg

7:00 AM

Clear night

73° 💧 None 💨 6 mph H 88%29.83 inHg

10:00 AM

Sunny

82° 💧 None 💨 6 mph H 64%29.88 inHg

1:00 PM

Sunny

89° 💧 None 💨 6 mph H 52%29.91 inHg

4:00 PM

Mostly sunny

91° 💧 None 💨 9 mph H 50%29.88 inHg

7:00 PM

Light rain

84° 💧 None 💨 4 mph H 69%29.88 inHg

10:00 PM

Partly cloudy night

73° 💧 None 💨 6 mph H 95%30.00 inHg

Sunday

1:00 AM

Mostly clear night

72° 💧 None 💨 6 mph H 96%30.03 inHg

7:00 AM

Partly cloudy night

78° 💧 None 💨 7 mph H 82%29.97 inHg

1:00 PM

Sunny

74° 💧 None 💨 6 mph H 94%29.97 inHg

7:00 PM

Sunny

95° 💧 None 💨 13 mph H 43%29.91 inHg

Monday

1:00 AM

Partly cloudy night

93° 💧 None 💨 14 mph H 40%29.83 inHg

7:00 AM

Clear night

83° 💧 None 💨 14 mph H 61%29.88 inHg

1:00 PM

Sunny

80° 💧 None 💨 13 mph H 63%29.85 inHg

7:00 PM

Sunny

99° 💧 None 💨 14 mph H 32%29.80 inHg

Tuesday

1:00 AM

Partly cloudy night

98° 💧 None 💨 8 mph H 29%29.74 inHg

7:00 AM

Light rain

77° 💧 None 💨 16 mph H 59%30.00 inHg

1:00 PM

Mostly cloudy

68° 💧 None 💨 14 mph H 70%30.15 inHg

7:00 PM

Mostly sunny

76° 💧 None 💨 13 mph H 34%30.21 inHg

Wednesday

1:00 AM

Clear night

74° 💧 None 💨 11 mph H 37%30.15 inHg

7:00 AM

Mostly clear night

67° 💧 None 💨 6 mph H 60%30.27 inHg

1:00 PM

Mostly sunny

65° 💧 None 💨 10 mph H 66%30.30 inHg

7:00 PM

Mostly sunny

79° 💧 None 💨 11 mph H 34%30.30 inHg

Thursday

1:00 AM

Clear night

76° 💧 None 💨 10 mph H 46%30.24 inHg

7:00 AM

Mostly cloudy night

67° 💧 None 💨 7 mph H 64%30.30 inHg

1:00 PM

Mostly sunny

63° 💧 None 💨 8 mph H 69%30.30 inHg

7:00 PM

Overcast

74° 💧 None 💨 8 mph H 50%30.30 inHg

Friday

1:00 AM

Overcast night

75° 💧 None 💨 11 mph H 53%30.21 inHg

7:00 AM

Overcast night

69° 💧 None 💨 8 mph H 61%30.27 inHg

1:00 PM

Partly cloudy

64° 💧 None 💨 8 mph H 71%30.30 inHg

7:00 PM

Overcast

73° 💧 None 💨 7 mph H 51%30.27 inHg

Saturday

1:00 AM

Mostly clear night

75° 💧 None 💨 9 mph H 49%30.18 inHg

7:00 AM

Overcast night

65° 💧 None 💨 9 mph H 75%30.21 inHg

1:00 PM

Light rain

62° 💧 None 💨 4 mph H 91%30.21 inHg

7:00 PM

Heavy rain

66° 💧 None 💨 3 mph H 86%30.21 inHg

Sunday

1:00 AM

Light rain

70° 💧 None 💨 3 mph H 73%30.09 inHg

7:00 AM

Overcast night

66° 💧 None 💨 4 mph H 90%30.06 inHg

1:00 PM

Light rain

64° 💧 None 💨 3 mph H 94%30.00 inHg

7:00 PM

Light rain

67° 💧 None 💨 6 mph H 91%29.97 inHg

Monday

1:00 AM

Heavy rain

67° 💧 None 💨 6 mph H 96%29.88 inHg

7:00 AM

Moderate rain

65° 💧 None 💨 6 mph H 95%29.94 inHg

1:00 PM

Overcast

64° 💧 None 💨 6 mph H 96%29.94 inHg

7:00 PM

Overcast

72° 💧 None 💨 11 mph H 72%30.00 inHg

Tuesday

1:00 AM

Clear night

73° 💧 None 💨 6 mph H 71%29.94 inHg

In Harper and, more broadly, across the state of Kansas: The rest of the day will be mostly sunny with just a few clouds, accompanied by very hot conditions with temperatures ranging from 90 to 100 degrees Fahrenheit. Moderate south winds will continue, with speeds reaching up to 17 mph and gusts up to 25 mph, providing some relief from the heat. No rain is expected throughout the afternoon, so it will be a dry day overall. Be sure to stay hydrated and take precautions if you'll be outdoors for extended periods, especially during the peak heat hours. The weather should remain stable into the evening, with clear skies and warm temperatures.

15-Day Weather Outlook for Harper

TomorrowTomorrow

Strong thunderstorm 103°/84° 💧 None 💨 14 mph

Wednesday, Sep 9Wed Sep 9

Strong thunderstorm 101°/85° 💧 None 💨 13 mph

Thursday, Sep 10Thu Sep 10

Light rain 88°/74° 💧 0.579 in 💨 10 mph

Friday, Sep 11Fri Sep 11

Light thunderstorms 89°/72° 💧 0.399 in 💨 14 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 91°/73° 💧 0.004 in 💨 10 mph

Sunday, Sep 13Sun Sep 13

Light rain 84°/72° 💧 0.321 in 💨 7 mph

Monday, Sep 14Mon Sep 14

Partly cloudy 95°/80° 💧 0.002 in 💨 14 mph

Tuesday, Sep 15Tue Sep 15

Light rain 99°/68° 💧 0.232 in 💨 16 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 76°/65° 💧 0.001 in 💨 13 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 79°/63° 💧 None 💨 11 mph

Friday, Sep 18Fri Sep 18

Overcast 75°/64° 💧 0.001 in 💨 11 mph

Saturday, Sep 19Sat Sep 19

Light rain 75°/62° 💧 0.026 in 💨 9 mph

Sunday, Sep 20Sun Sep 20

Heavy rain 70°/64° 💧 0.523 in 💨 4 mph

Monday, Sep 21Mon Sep 21

Heavy rain 67°/64° 💧 2.285 in 💨 6 mph

Tuesday, Sep 22Tue Sep 22

Overcast 73°/72° 💧 0.007 in 💨 11 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Harper

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Harper

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 1:00 PM

PM2.5 Fine particles Good 2,6µg/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 2,9µg/m³

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

O₃ Ozone Fair 81,7µg/m³

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

NO₂ Nitrogen dioxide Good 0,3µg/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 Harper

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 8,6Very high 🙂Fair

Tomorrow UV 8,5Very high 🙂Fair

Wednesday UV 8,3Very high 🙂Fair

Thursday UV 7,8High 🙂Fair

Friday UV 8,0Very high 🙂Fair

Saturday UV 9,0Very high —Unavailable

Sunday UV 9,0Very high —Unavailable

Hourly UV index today

1:00 PMUV 8,6 2:00 PMUV 8,3 3:00 PMUV 6,9 4:00 PMUV 5,1 5:00 PMUV 2,7 6:00 PMUV 0,5 7:00 PMUV 0,1

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

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Acceptable air quality

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

Extreme heat risk

Drink water frequently, stay in cool places and avoid strenuous activity during the hottest hours. Dry air can increase hydration needs.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Harper

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · HARPER, KANSAS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

99/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 9:21 PM–5:39 AM

☁ Cloud cover 1% Real hourly forecast for the best viewing hour.

☾ Moonlight 13% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 71° 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 min79%

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 Harper were last refreshed today at 12:46 PM. The current forecast period extends through 09/09/2026 at 10:00 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.