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Current weather in Keystone is clear sky.

Where can I find the hourly weather forecast for Keystone?

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

Is the weather forecast for Keystone updated regularly?

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

Now · 7:17 AM

Keystone Weather & Hourly Forecast

United States · Indiana

52°F

Sunny

Feels like: 49°F

💧 Humidity 78% 🌡 Pressure 30.24 inHg 💨 Wind 5 mph 👁 Visibility 18.0 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Keystone

Today

8:00 AM

Sunny

53° 💧 None 💨 5 mph H 77%30.27 inHg

11:00 AM

Sunny

64° 💧 None 💨 8 mph H 52%30.30 inHg

2:00 PM

Sunny

69° 💧 None 💨 8 mph H 44%30.24 inHg

5:00 PM

Mostly cloudy

71° 💧 None 💨 8 mph H 43%30.18 inHg

8:00 PM

Mostly clear night

64° 💧 None 💨 6 mph H 64%30.15 inHg

11:00 PM

Clear night

61° 💧 None 💨 8 mph H 73%30.18 inHg

Tomorrow

2:00 AM

Clear night

60° 💧 None 💨 10 mph H 73%30.15 inHg

5:00 AM

Mostly cloudy night

61° 💧 None 💨 9 mph H 74%30.12 inHg

8:00 AM

Sunny

62° 💧 None 💨 10 mph H 74%30.15 inHg

11:00 AM

Sunny

75° 💧 None 💨 11 mph H 61%30.15 inHg

2:00 PM

Sunny

85° 💧 None 💨 11 mph H 51%30.12 inHg

5:00 PM

Sunny

88° 💧 None 💨 10 mph H 51%30.06 inHg

8:00 PM

Clear night

81° 💧 None 💨 8 mph H 69%30.09 inHg

11:00 PM

Light thunderstorms

74° 💧 0.062 in 💨 6 mph H 87%30.18 inHg

Wednesday

2:00 AM

Light rain

71° 💧 0.017 in 💨 3 mph H 94%30.18 inHg

5:00 AM

Clear night

70° 💧 None 💨 4 mph H 94%30.18 inHg

Today

8:00 AM

Sunny

53° 💧 None 💨 5 mph H 77%30.27 inHg

9:00 AM

Sunny

57° 💧 None 💨 5 mph H 71%30.27 inHg

10:00 AM

Sunny

61° 💧 None 💨 6 mph H 61%30.30 inHg

11:00 AM

Sunny

64° 💧 None 💨 8 mph H 52%30.30 inHg

12:00 PM

Sunny

66° 💧 None 💨 8 mph H 48%30.30 inHg

1:00 PM

Sunny

68° 💧 None 💨 8 mph H 46%30.27 inHg

2:00 PM

Sunny

69° 💧 None 💨 8 mph H 44%30.24 inHg

3:00 PM

Sunny

70° 💧 None 💨 7 mph H 44%30.24 inHg

4:00 PM

Mostly sunny

71° 💧 None 💨 8 mph H 43%30.21 inHg

5:00 PM

Mostly cloudy

71° 💧 None 💨 8 mph H 43%30.18 inHg

6:00 PM

Mostly cloudy

70° 💧 None 💨 8 mph H 45%30.18 inHg

7:00 PM

Mostly sunny

68° 💧 None 💨 7 mph H 54%30.15 inHg

8:00 PM

Mostly clear night

64° 💧 None 💨 6 mph H 64%30.15 inHg

9:00 PM

Clear night

62° 💧 None 💨 6 mph H 68%30.15 inHg

10:00 PM

Clear night

61° 💧 None 💨 7 mph H 70%30.18 inHg

11:00 PM

Clear night

61° 💧 None 💨 8 mph H 73%30.18 inHg

Tomorrow

12:00 AM

Clear night

60° 💧 None 💨 9 mph H 73%30.18 inHg

1:00 AM

Clear night

61° 💧 None 💨 8 mph H 73%30.18 inHg

2:00 AM

Clear night

60° 💧 None 💨 10 mph H 73%30.15 inHg

3:00 AM

Clear night

61° 💧 None 💨 10 mph H 72%30.15 inHg

4:00 AM

Mostly cloudy night

61° 💧 None 💨 10 mph H 73%30.12 inHg

5:00 AM

Mostly cloudy night

61° 💧 None 💨 9 mph H 74%30.12 inHg

6:00 AM

Overcast night

61° 💧 None 💨 10 mph H 75%30.12 inHg

7:00 AM

Mostly cloudy night

61° 💧 None 💨 10 mph H 75%30.15 inHg

8:00 AM

Sunny

62° 💧 None 💨 10 mph H 74%30.15 inHg

9:00 AM

Mostly sunny

65° 💧 None 💨 9 mph H 71%30.15 inHg

10:00 AM

Partly cloudy

69° 💧 None 💨 10 mph H 66%30.15 inHg

11:00 AM

Sunny

75° 💧 None 💨 11 mph H 61%30.15 inHg

12:00 PM

Mostly cloudy

79° 💧 None 💨 11 mph H 56%30.15 inHg

1:00 PM

Overcast

83° 💧 None 💨 11 mph H 52%30.15 inHg

2:00 PM

Sunny

85° 💧 None 💨 11 mph H 51%30.12 inHg

3:00 PM

Sunny

87° 💧 None 💨 11 mph H 50%30.09 inHg

4:00 PM

Sunny

88° 💧 None 💨 11 mph H 50%30.09 inHg

5:00 PM

Sunny

88° 💧 None 💨 10 mph H 51%30.06 inHg

6:00 PM

Sunny

87° 💧 None 💨 10 mph H 54%30.06 inHg

7:00 PM

Sunny

85° 💧 None 💨 8 mph H 62%30.09 inHg

8:00 PM

Clear night

81° 💧 None 💨 8 mph H 69%30.09 inHg

9:00 PM

Clear night

80° 💧 None 💨 9 mph H 72%30.09 inHg

10:00 PM

Clear night

79° 💧 None 💨 8 mph H 74%30.12 inHg

11:00 PM

Light thunderstorms

74° 💧 0.031 in 💨 6 mph H 87%30.18 inHg

Wednesday

12:00 AM

Light rain

72° 💧 0.012 in 💨 3 mph H 96%30.18 inHg

1:00 AM

Light rain

71° 💧 0.020 in 💨 4 mph H 96%30.18 inHg

2:00 AM

Light rain

71° 💧 0.012 in 💨 3 mph H 94%30.18 inHg

3:00 AM

Light rain

72° 💧 0.004 in 💨 2 mph H 92%30.18 inHg

4:00 AM

Clear night

71° 💧 0.001 in 💨 5 mph H 93%30.18 inHg

5:00 AM

Clear night

70° 💧 None 💨 4 mph H 94%30.18 inHg

6:00 AM

Mostly clear night

70° 💧 None 💨 2 mph H 93%30.21 inHg

7:00 AM

Mostly clear night

70° 💧 None 💨 0 mph H 93%30.21 inHg

8:00 AM

Mostly sunny

69° 💧 None 💨 5 mph H 96%30.24 inHg

9:00 AM

Sunny

72° 💧 None 💨 5 mph H 93%30.24 inHg

10:00 AM

Mostly sunny

76° 💧 0.000 in 💨 6 mph H 84%30.27 inHg

11:00 AM

Light thunderstorms

79° 💧 0.003 in 💨 3 mph H 76%30.27 inHg

12:00 PM

Partly cloudy

82° 💧 None 💨 3 mph H 68%30.27 inHg

1:00 PM

Sunny

85° 💧 None 💨 3 mph H 63%30.27 inHg

2:00 PM

Sunny

87° 💧 None 💨 2 mph H 59%30.24 inHg

3:00 PM

Light thunderstorms

88° 💧 0.004 in 💨 3 mph H 58%30.21 inHg

4:00 PM

Light thunderstorms

88° 💧 0.016 in 💨 3 mph H 61%30.21 inHg

5:00 PM

Light thunderstorms

87° 💧 0.012 in 💨 3 mph H 63%30.18 inHg

6:00 PM

Thunderstorms

81° 💧 0.104 in 💨 5 mph H 80%30.18 inHg

7:00 PM

Thunderstorms

76° 💧 0.135 in 💨 6 mph H 92%30.21 inHg

8:00 PM

Light thunderstorms

74° 💧 0.050 in 💨 4 mph H 95%30.21 inHg

11:00 PM

Overcast night

74° 💧 None 💨 4 mph H 96%30.24 inHg

Thursday

2:00 AM

Partly cloudy night

73° 💧 None 💨 6 mph H 96%30.21 inHg

5:00 AM

Clear night

72° 💧 None 💨 6 mph H 93%30.18 inHg

8:00 AM

Mostly cloudy

73° 💧 None 💨 8 mph H 90%30.21 inHg

11:00 AM

Mostly sunny

81° 💧 None 💨 3 mph H 75%30.21 inHg

2:00 PM

Sunny

88° 💧 None 💨 7 mph H 58%30.15 inHg

5:00 PM

Partly cloudy

86° 💧 None 💨 6 mph H 64%30.12 inHg

8:00 PM

Light rain

76° 💧 None 💨 9 mph H 93%30.15 inHg

11:00 PM

Partly cloudy night

74° 💧 None 💨 4 mph H 96%30.18 inHg

Friday

2:00 AM

Mostly clear night

72° 💧 None 💨 3 mph H 99%30.18 inHg

5:00 AM

Overcast night

72° 💧 None 💨 5 mph H 98%30.18 inHg

8:00 AM

Overcast

72° 💧 None 💨 5 mph H 97%30.21 inHg

11:00 AM

Light rain

74° 💧 None 💨 10 mph H 88%30.21 inHg

2:00 PM

Overcast

74° 💧 None 💨 10 mph H 70%30.21 inHg

5:00 PM

Partly cloudy

78° 💧 None 💨 10 mph H 63%30.15 inHg

8:00 PM

Mostly clear night

72° 💧 None 💨 7 mph H 73%30.15 inHg

11:00 PM

Mostly clear night

68° 💧 None 💨 8 mph H 78%30.15 inHg

Saturday

2:00 AM

Clear night

64° 💧 None 💨 8 mph H 76%30.12 inHg

5:00 AM

Overcast night

62° 💧 None 💨 6 mph H 75%30.09 inHg

8:00 AM

Mostly sunny

64° 💧 None 💨 5 mph H 77%30.06 inHg

11:00 AM

Sunny

76° 💧 None 💨 6 mph H 70%30.03 inHg

2:00 PM

Mostly sunny

85° 💧 None 💨 8 mph H 64%29.94 inHg

5:00 PM

Mostly sunny

87° 💧 None 💨 8 mph H 60%29.88 inHg

8:00 PM

Clear night

81° 💧 None 💨 7 mph H 75%29.85 inHg

Sunday

2:00 AM

Clear night

77° 💧 None 💨 9 mph H 77%29.88 inHg

8:00 AM

Sunny

75° 💧 None 💨 9 mph H 77%29.85 inHg

2:00 PM

Overcast

92° 💧 None 💨 11 mph H 44%29.83 inHg

8:00 PM

Partly cloudy night

75° 💧 None 💨 9 mph H 83%29.80 inHg

Monday

2:00 AM

Clear night

75° 💧 None 💨 10 mph H 78%29.80 inHg

8:00 AM

Mostly sunny

70° 💧 None 💨 6 mph H 90%29.83 inHg

2:00 PM

Light rain

77° 💧 None 💨 10 mph H 75%29.80 inHg

8:00 PM

Mostly cloudy night

71° 💧 None 💨 4 mph H 80%29.77 inHg

Tuesday

2:00 AM

Mostly clear night

64° 💧 None 💨 10 mph H 88%29.80 inHg

8:00 AM

Overcast

59° 💧 None 💨 15 mph H 82%29.91 inHg

2:00 PM

Partly cloudy

65° 💧 None 💨 18 mph H 57%29.97 inHg

8:00 PM

Clear night

58° 💧 None 💨 13 mph H 60%30.06 inHg

Wednesday

2:00 AM

Clear night

51° 💧 None 💨 4 mph H 87%30.15 inHg

8:00 AM

Sunny

48° 💧 None 💨 2 mph H 95%30.24 inHg

2:00 PM

Mostly sunny

65° 💧 None 💨 8 mph H 51%30.21 inHg

8:00 PM

Clear night

59° 💧 None 💨 4 mph H 62%30.18 inHg

Thursday

2:00 AM

Clear night

50° 💧 None 💨 3 mph H 85%30.24 inHg

8:00 AM

Sunny

47° 💧 None 💨 2 mph H 91%30.27 inHg

2:00 PM

Mostly cloudy

68° 💧 None 💨 6 mph H 46%30.24 inHg

8:00 PM

Mostly clear night

62° 💧 None 💨 2 mph H 64%30.18 inHg

Friday

2:00 AM

Mostly clear night

53° 💧 None 💨 3 mph H 88%30.24 inHg

8:00 AM

Sunny

51° 💧 None 💨 1 mph H 90%30.27 inHg

2:00 PM

Mostly cloudy

71° 💧 None 💨 5 mph H 42%30.27 inHg

8:00 PM

Mostly clear night

64° 💧 None 💨 7 mph H 59%30.24 inHg

Saturday

2:00 AM

Overcast night

56° 💧 None 💨 6 mph H 84%30.30 inHg

8:00 AM

Sunny

52° 💧 None 💨 6 mph H 96%30.36 inHg

2:00 PM

Sunny

71° 💧 None 💨 3 mph H 50%30.33 inHg

8:00 PM

Clear night

63° 💧 None 💨 5 mph H 58%30.27 inHg

Sunday

2:00 AM

Clear night

53° 💧 None 💨 4 mph H 79%30.27 inHg

8:00 AM

Mostly sunny

50° 💧 None 💨 3 mph H 92%30.27 inHg

2:00 PM

Sunny

74° 💧 None 💨 1 mph H 43%30.18 inHg

8:00 PM

Mostly cloudy night

67° 💧 None 💨 6 mph H 55%30.09 inHg

Monday

2:00 AM

Overcast night

60° 💧 None 💨 6 mph H 67%30.03 inHg

8:00 AM

Partly cloudy

55° 💧 None 💨 6 mph H 72%30.03 inHg

2:00 PM

Partly cloudy

77° 💧 None 💨 5 mph H 33%29.97 inHg

8:00 PM

Overcast night

71° 💧 None 💨 2 mph H 50%29.94 inHg

In Keystone and, more broadly, across the state of Indiana: This morning will start with mostly sunny skies and just a few clouds drifting through. Temperatures are expected to be mild, ranging from the low 56s to the upper 60s. Winds will be light, coming from the east at around 9 mph, with occasional gusts reaching up to 23 mph. As the day progresses into the afternoon, the weather will remain generally clear and warm, with highs reaching up to 77 degrees. No rain is expected throughout the day, making it a pleasant day to be outdoors. Expect the light easterly breeze to continue into the afternoon, providing a gentle breeze without much strength. Overall, it looks like a comfortable, dry day with calm weather conditions.

15-Day Weather Outlook for Keystone

TomorrowTomorrow

Light thunderstorms 88°/60° 💧 None 💨 11 mph

Wednesday, Sep 16Wed Sep 16

Light thunderstorms 88°/69° 💧 0.284 in 💨 6 mph

Thursday, Sep 17Thu Sep 17

Light rain 88°/72° 💧 0.078 in 💨 9 mph

Friday, Sep 18Fri Sep 18

Light rain 78°/68° 💧 0.019 in 💨 10 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 87°/62° 💧 0.009 in 💨 8 mph

Sunday, Sep 20Sun Sep 20

Overcast 92°/75° 💧 0.070 in 💨 11 mph

Monday, Sep 21Mon Sep 21

Light rain 77°/70° 💧 0.181 in 💨 10 mph

Tuesday, Sep 22Tue Sep 22

Partly cloudy 65°/58° 💧 0.028 in 💨 18 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 65°/48° 💧 None 💨 8 mph

Thursday, Sep 24Thu Sep 24

Mostly cloudy 68°/47° 💧 None 💨 6 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 71°/51° 💧 None 💨 7 mph

Saturday, Sep 26Sat Sep 26

Overcast 71°/52° 💧 None 💨 6 mph

Sunday, Sep 27Sun Sep 27

Mostly sunny 74°/50° 💧 None 💨 6 mph

Monday, Sep 28Mon Sep 28

Overcast 77°/55° 💧 None 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Keystone

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Keystone

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 8:00 AM

PM2.5 Fine particles Good 0,8µg/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 1,3µg/m³

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

O₃ Ozone Good 57,3µg/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 Keystone

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 6,4High 😊Good

Tomorrow UV 6,9High 🙂Fair

Wednesday UV 5,4Moderate 😐Moderate

Thursday UV 5,0Moderate 😐Moderate

Friday UV 6,0High 🙂Fair

Saturday UV 5,0Moderate —Unavailable

Sunday UV 4,0Moderate —Unavailable

Hourly UV index today

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

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 Keystone

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · KEYSTONE, INDIANA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 9:24 PM–5:49 AM

☁ Cloud cover 0% 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 53° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min74%

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 Keystone were last refreshed today at 7:17 AM. The current forecast period extends through 16/09/2026 at 5:00 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.