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

Now · 10:51 AM

Jeffersontown Weather & Hourly Forecast

United States · Kentucky · 40299

89°F

Sunny

Feels like: 98°F

💧 Humidity 61% 🌡 Pressure 30.00 inHg 💨 Wind 4 mph 👁 Visibility 6.2 mi ☁ Clouds 0% ☀️ UV index 2.3 · Low 🌅 Sunrise 7:14 AM 🌇 Sunset 8:08 PM

Hourly Forecast for Jeffersontown

Today

11:00 AM

Sunny

89° 💧 None 💨 4 mph H 61%30.00 inHg

2:00 PM

Sunny

92° 💧 None 💨 5 mph H 48%29.97 inHg

5:00 PM

Mostly cloudy

98° 💧 None 💨 5 mph H 29%29.88 inHg

8:00 PM

Light rain

82° 💧 0.02 in 💨 5 mph H 60%29.94 inHg

11:00 PM

Overcast night

77° 💧 None 💨 5 mph H 66%29.94 inHg

Tomorrow

2:00 AM

Mostly cloudy night

74° 💧 None 💨 4 mph H 67%29.91 inHg

5:00 AM

Light rain

71° 💧 0.01 in 💨 4 mph H 74%29.91 inHg

8:00 AM

Mostly sunny

72° 💧 0.01 in 💨 4 mph H 76%29.91 inHg

11:00 AM

Mostly cloudy

85° 💧 None 💨 5 mph H 55%29.91 inHg

2:00 PM

Partly cloudy

94° 💧 None 💨 7 mph H 34%29.85 inHg

5:00 PM

Mostly sunny

96° 💧 0.01 in 💨 8 mph H 34%29.80 inHg

8:00 PM

Moderate rain

73° 💧 0.14 in 💨 12 mph H 87%29.85 inHg

11:00 PM

Light rain

69° 💧 0.01 in 💨 6 mph H 94%29.88 inHg

Sunday

2:00 AM

Overcast night

68° 💧 None 💨 3 mph H 95%29.88 inHg

5:00 AM

Mostly clear night

71° 💧 None 💨 6 mph H 95%29.91 inHg

8:00 AM

Partly cloudy

68° 💧 None 💨 7 mph H 90%29.94 inHg

Today

11:00 AM

Sunny

89° 💧 None 💨 4 mph H 61%30.00 inHg

12:00 PM

Sunny

90° 💧 None 💨 4 mph H 59%30.00 inHg

1:00 PM

Sunny

91° 💧 None 💨 5 mph H 54%30.00 inHg

2:00 PM

Sunny

92° 💧 None 💨 5 mph H 48%29.97 inHg

3:00 PM

Partly cloudy

95° 💧 None 💨 5 mph H 41%29.94 inHg

4:00 PM

Partly cloudy

98° 💧 None 💨 5 mph H 27%29.91 inHg

5:00 PM

Mostly cloudy

98° 💧 None 💨 5 mph H 29%29.88 inHg

6:00 PM

Mostly cloudy

94° 💧 None 💨 1 mph H 35%29.88 inHg

7:00 PM

Mostly cloudy

89° 💧 None 💨 8 mph H 47%29.91 inHg

8:00 PM

Light rain

82° 💧 0.01 in 💨 5 mph H 60%29.94 inHg

9:00 PM

Light rain

78° 💧 0.01 in 💨 3 mph H 65%29.94 inHg

10:00 PM

Overcast night

76° 💧 None 💨 2 mph H 66%29.94 inHg

11:00 PM

Overcast night

77° 💧 None 💨 5 mph H 66%29.94 inHg

Tomorrow

12:00 AM

Mostly cloudy night

77° 💧 None 💨 3 mph H 65%29.91 inHg

1:00 AM

Mostly cloudy night

76° 💧 None 💨 4 mph H 66%29.91 inHg

2:00 AM

Mostly cloudy night

74° 💧 None 💨 4 mph H 67%29.91 inHg

3:00 AM

Clear night

73° 💧 None 💨 5 mph H 68%29.88 inHg

4:00 AM

Clear night

72° 💧 None 💨 6 mph H 72%29.91 inHg

5:00 AM

Light rain

71° 💧 0.01 in 💨 4 mph H 74%29.91 inHg

6:00 AM

Light rain

71° 💧 0.00 in 💨 3 mph H 76%29.91 inHg

7:00 AM

Clear night

71° 💧 None 💨 4 mph H 76%29.91 inHg

8:00 AM

Mostly sunny

72° 💧 None 💨 4 mph H 76%29.91 inHg

9:00 AM

Mostly cloudy

76° 💧 None 💨 5 mph H 69%29.91 inHg

10:00 AM

Light rain

80° 💧 0.01 in 💨 7 mph H 69%29.94 inHg

11:00 AM

Mostly cloudy

85° 💧 None 💨 5 mph H 55%29.91 inHg

12:00 PM

Mostly cloudy

90° 💧 None 💨 6 mph H 46%29.91 inHg

1:00 PM

Mostly cloudy

94° 💧 None 💨 6 mph H 39%29.88 inHg

2:00 PM

Partly cloudy

94° 💧 None 💨 7 mph H 34%29.85 inHg

3:00 PM

Sunny

97° 💧 None 💨 9 mph H 31%29.83 inHg

4:00 PM

Mostly sunny

97° 💧 None 💨 10 mph H 31%29.83 inHg

5:00 PM

Mostly sunny

96° 💧 None 💨 8 mph H 34%29.80 inHg

6:00 PM

Partly cloudy

95° 💧 None 💨 8 mph H 35%29.74 inHg

7:00 PM

Light rain

85° 💧 0.01 in 💨 9 mph H 54%29.80 inHg

8:00 PM

Moderate rain

73° 💧 0.06 in 💨 12 mph H 87%29.85 inHg

9:00 PM

Moderate rain

68° 💧 0.07 in 💨 7 mph H 90%29.91 inHg

10:00 PM

Light rain

67° 💧 0.01 in 💨 6 mph H 94%29.88 inHg

11:00 PM

Light rain

69° 💧 0.01 in 💨 6 mph H 94%29.88 inHg

Sunday

12:00 AM

Overcast night

69° 💧 None 💨 5 mph H 90%29.91 inHg

1:00 AM

Overcast night

69° 💧 None 💨 3 mph H 93%29.91 inHg

2:00 AM

Overcast night

68° 💧 None 💨 3 mph H 95%29.88 inHg

3:00 AM

Clear night

72° 💧 None 💨 4 mph H 96%29.88 inHg

4:00 AM

Mostly clear night

72° 💧 None 💨 6 mph H 95%29.88 inHg

5:00 AM

Mostly clear night

71° 💧 None 💨 6 mph H 95%29.91 inHg

6:00 AM

Partly cloudy night

70° 💧 None 💨 6 mph H 95%29.91 inHg

7:00 AM

Partly cloudy night

68° 💧 None 💨 6 mph H 94%29.94 inHg

8:00 AM

Partly cloudy

68° 💧 None 💨 7 mph H 90%29.94 inHg

9:00 AM

Sunny

69° 💧 None 💨 9 mph H 76%29.97 inHg

10:00 AM

Sunny

71° 💧 None 💨 10 mph H 64%30.00 inHg

11:00 AM

Sunny

75° 💧 None 💨 10 mph H 51%30.00 inHg

12:00 PM

Sunny

79° 💧 None 💨 10 mph H 44%30.00 inHg

1:00 PM

Sunny

82° 💧 None 💨 9 mph H 39%29.97 inHg

2:00 PM

Sunny

84° 💧 None 💨 9 mph H 35%29.97 inHg

3:00 PM

Sunny

86° 💧 None 💨 9 mph H 32%29.94 inHg

4:00 PM

Sunny

86° 💧 None 💨 9 mph H 30%29.94 inHg

5:00 PM

Sunny

86° 💧 None 💨 10 mph H 29%29.94 inHg

6:00 PM

Sunny

85° 💧 None 💨 11 mph H 29%29.94 inHg

7:00 PM

Sunny

81° 💧 None 💨 10 mph H 33%29.94 inHg

8:00 PM

Sunny

76° 💧 None 💨 10 mph H 40%29.97 inHg

9:00 PM

Clear night

73° 💧 None 💨 11 mph H 47%29.97 inHg

10:00 PM

Clear night

71° 💧 None 💨 11 mph H 55%30.00 inHg

11:00 PM

Clear night

69° 💧 None 💨 10 mph H 60%30.00 inHg

Monday

12:00 AM

Clear night

68° 💧 None 💨 9 mph H 65%30.00 inHg

1:00 AM

Clear night

67° 💧 None 💨 9 mph H 67%30.00 inHg

2:00 AM

Clear night

66° 💧 None 💨 8 mph H 70%30.00 inHg

3:00 AM

Clear night

64° 💧 None 💨 6 mph H 74%30.03 inHg

4:00 AM

Clear night

63° 💧 None 💨 6 mph H 79%30.03 inHg

5:00 AM

Clear night

62° 💧 None 💨 6 mph H 82%30.03 inHg

6:00 AM

Clear night

61° 💧 None 💨 6 mph H 85%30.03 inHg

7:00 AM

Clear night

60° 💧 None 💨 7 mph H 87%30.03 inHg

8:00 AM

Mostly sunny

61° 💧 None 💨 6 mph H 83%30.06 inHg

9:00 AM

Overcast

66° 💧 None 💨 7 mph H 72%30.06 inHg

10:00 AM

Mostly cloudy

71° 💧 None 💨 5 mph H 64%30.06 inHg

11:00 AM

Partly cloudy

75° 💧 None 💨 6 mph H 57%30.06 inHg

12:00 PM

Partly cloudy

79° 💧 None 💨 6 mph H 52%30.09 inHg

1:00 PM

Partly cloudy

83° 💧 None 💨 7 mph H 47%30.06 inHg

2:00 PM

Partly cloudy

85° 💧 None 💨 5 mph H 42%30.03 inHg

3:00 PM

Mostly cloudy

88° 💧 None 💨 5 mph H 37%30.00 inHg

4:00 PM

Partly cloudy

89° 💧 None 💨 5 mph H 34%30.00 inHg

5:00 PM

Partly cloudy

89° 💧 None 💨 5 mph H 34%30.00 inHg

6:00 PM

Mostly sunny

88° 💧 None 💨 5 mph H 36%30.00 inHg

7:00 PM

Mostly sunny

86° 💧 None 💨 4 mph H 44%30.00 inHg

8:00 PM

Mostly sunny

80° 💧 None 💨 3 mph H 52%30.03 inHg

9:00 PM

Mostly cloudy night

78° 💧 None 💨 4 mph H 56%30.03 inHg

10:00 PM

Mostly cloudy night

78° 💧 None 💨 6 mph H 60%30.06 inHg

11:00 PM

Mostly cloudy night

79° 💧 None 💨 6 mph H 61%30.06 inHg

Tuesday

12:00 AM

Mostly cloudy night

79° 💧 None 💨 6 mph H 62%30.06 inHg

1:00 AM

Mostly cloudy night

79° 💧 None 💨 5 mph H 64%30.06 inHg

2:00 AM

Mostly cloudy night

77° 💧 None 💨 5 mph H 67%30.06 inHg

3:00 AM

Overcast night

76° 💧 None 💨 5 mph H 70%30.06 inHg

4:00 AM

Overcast night

76° 💧 None 💨 5 mph H 72%30.09 inHg

5:00 AM

Overcast night

74° 💧 None 💨 6 mph H 80%30.09 inHg

6:00 AM

Overcast night

73° 💧 None 💨 5 mph H 84%30.09 inHg

7:00 AM

Overcast night

72° 💧 None 💨 4 mph H 84%30.09 inHg

8:00 AM

Overcast

73° 💧 None 💨 3 mph H 81%30.15 inHg

9:00 AM

Overcast

76° 💧 None 💨 5 mph H 73%30.15 inHg

10:00 AM

Overcast

78° 💧 None 💨 8 mph H 69%30.15 inHg

In Jeffersontown and, more broadly, across the state of Kentucky: The rest of the day will be mostly sunny with a few clouds, and temperatures will remain hot, ranging from 74 to 92 degrees Fahrenheit. A slight chance of rain exists, with possible accumulation around 0.02 inches, and the highest probability of rain is about 38%. Winds will be moderate from the southwest, reaching up to 15 mph, with gusts up to 22 mph. It's advisable to stay hydrated and be prepared for brief showers if they occur, especially during the afternoon. The weather should remain fairly stable for the rest of the day, making outdoor plans feasible with caution.

15-Day Weather Outlook for Jeffersontown

TomorrowTomorrow

Moderate rain 98°/71° 💧 0.28 in 💨 22 mph

Sunday, Sep 6Sun Sep 6

Mostly cloudy 87°/70° 💧 None 💨 12 mph

Monday, Sep 7Mon Sep 7

Mostly sunny 91°/61° 💧 None 💨 10 mph

Tuesday, Sep 8Tue Sep 8

Overcast 91°/72° 💧 None 💨 9 mph

Wednesday, Sep 9Wed Sep 9

Sunny 99°/74° 💧 None 💨 12 mph

Thursday, Sep 10Thu Sep 10

Light rain 94°/70° 💧 0.00 in 💨 12 mph

Friday, Sep 11Fri Sep 11

Light rain 89°/63° 💧 0.01 in 💨 6 mph

Saturday, Sep 12Sat Sep 12

Moderate rain 82°/65° 💧 0.28 in 💨 12 mph

Sunday, Sep 13Sun Sep 13

Sunny 90°/61° 💧 None 💨 10 mph

Monday, Sep 14Mon Sep 14

Sunny 96°/68° 💧 None 💨 6 mph

Tuesday, Sep 15Tue Sep 15

Sunny 97°/75° 💧 None 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Light rain 96°/71° 💧 0.22 in 💨 7 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 90°/72° 💧 0.27 in 💨 8 mph

Friday, Sep 18Fri Sep 18

Light rain 94°/72° 💧 0.02 in 💨 8 mph

Saturday, Sep 19Sat Sep 19

Overcast 88°/66° 💧 None 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Jeffersontown

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Jeffersontown

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 11:00 AM

PM2.5 Fine particles Good 7,7µg/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 9,0µg/m³

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

O₃ Ozone Good 29,5µg/m³

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

NO₂ Nitrogen dioxide Good 4,2µg/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 Jeffersontown

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 8,3Very high 😊Good

Tomorrow UV 7,5High 😐Moderate

Sunday UV 7,5High 🙂Fair

Monday UV 8,0Very high 😐Moderate

Tuesday UV 7,0High 😊Good

Wednesday UV 9,0Very high —Unavailable

Thursday UV 7,0High —Unavailable

Hourly UV index today

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

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.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 Jeffersontown

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 4.50 Population: 29,199

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Forecast data for Jeffersontown were last refreshed today at 10:51 AM. The current forecast period extends through 06/09/2026 at 8:00 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.