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Keystone IN Weather - Clear - 75°F
Clear
75°F
Updated 7:15 am
Feels Like 77°F
Humidity 67%
Wind SSW 3 mph
Barometer  29.97 in
Dew Point 64°F
Keystone IN Weather - Clear - 24°C
Clear
24°C
Updated 7:15 am
Feels Like 25°C
Humidity 67%
Wind SSW 5 km/h
Barometer  101.5 kPa
Dew Point 18°C
Keystone, IN Weather and Current Conditionskeystone in weather forecast

Keystone, IN Weather Forecast

Keystone Indiana WeatherKeystone, Indiana Weather Weather Forecast
14 day API weather forecast for Keystone, Indiana. Note: The 7-day weather forecast for Keystone, IN is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Keystone, IN Weather Forecast Dated: 715 AM Fri Sep 04 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate. Isolated storms at times.

Friday, September 4, 2026

Mid-Morning
Keystone Weather - 2026-09-04 - Morning - Scattered Showers
79°F 26°C
Scattered Showers
Mid-Afternoon
Keystone Weather - 2026-09-04 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
Keystone Weather - 2026-09-04 - Evening - Nearby Thunderstorms
82°F 28°C
Nearby Thunderstorms
Warm and summery around 86°F 30°C (feels like 93°F 34°C), periods of heavy rain and gusty conditions, with steady humidity and steady pressure. A stray shower or storm late in the day. Winds turning from the SW to the W at 9 mph 14 km/h.

Saturday, September 5, 2026

Mid-Morning
Keystone Weather - 2026-09-05 - Morning - Light Showers
68°F 20°C
Light Showers
Mid-Afternoon
Keystone Weather - 2026-09-05 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Keystone Weather - 2026-09-05 - Evening - Partly Cloudy
75°F 24°C
Partly Cloudy
Comfortable with temperatures reaching 77°F 25°C, scattered morning showers before drying out later, with lower humidity and steady pressure. Winds switching from the ENE to the NE at 8 mph 13 km/h.

Sunday, September 6, 2026

Mid-Morning
Keystone Weather - 2026-09-06 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-06 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Keystone Weather - 2026-09-06 - Evening - Sunny
70°F 21°C
Sunny
Enjoyable around 72°F 22°C, sunny throughout the day, with steady humidity and steady pressure. Winds ENE at 10 mph 15 km/h.

Monday, September 7, 2026

Mid-Morning
Keystone Weather - 2026-09-07 - Morning - Overcast
59°F 15°C
Overcast
Mid-Afternoon
Keystone Weather - 2026-09-07 - Afternoon - Cloudy
73°F 23°C
Cloudy
Early-Evening
Keystone Weather - 2026-09-07 - Evening - Overcast
71°F 22°C
Overcast
Mild temperatures up to 73°F 23°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds swinging from the NE to the ENE at 8 mph 12 km/h.

Tuesday, September 8, 2026

Mid-Morning
Keystone Weather - 2026-09-08 - Morning - Sunny
65°F 18°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-08 - Afternoon - Overcast
76°F 25°C
Overcast
Early-Evening
Keystone Weather - 2026-09-08 - Evening - Overcast
76°F 25°C
Overcast
Mild with a high of 76°F 25°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the ESE to the SSE at 8 mph 13 km/h.

Wednesday, September 9, 2026

Mid-Morning
Keystone Weather - 2026-09-09 - Morning - Cloudy
78°F 25°C
Cloudy
Mid-Afternoon
Keystone Weather - 2026-09-09 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
Keystone Weather - 2026-09-09 - Evening - Sunny
85°F 29°C
Sunny
Very warm near 86°F 30°C, though humidity makes it feel like 93°F 34°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds turning from the SSW to the WSW at 9 mph 15 km/h. Gusts up to 20 mph 32 km/h.

Thursday, September 10, 2026

Mid-Morning
Keystone Weather - 2026-09-10 - Morning - Sunny
76°F 25°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-10 - Afternoon - Nearby Thunderstorms
85°F 29°C
Nearby Thunderstorms
Early-Evening
Keystone Weather - 2026-09-10 - Evening - Sunny
82°F 28°C
Sunny
Warm and summery around 85°F 29°C (feels like 90°F 32°C), periods of heavy thunderstorms, with steady humidity and steady pressure.

Friday, September 11, 2026

Mid-Morning
Keystone Weather - 2026-09-11 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-11 - Afternoon - Sunny
85°F 29°C
Sunny
Early-Evening
Keystone Weather - 2026-09-11 - Evening - Sunny
83°F 29°C
Sunny
Quite warm reaching 85°F 29°C, feeling like 91°F 33°C during peak afternoon, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the ESE to the E at 6 mph 10 km/h.

Saturday, September 12, 2026

Mid-Morning
Keystone Weather - 2026-09-12 - Morning - Sunny
77°F 25°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-12 - Afternoon - Nearby Thunderstorms
85°F 29°C
Nearby Thunderstorms
Early-Evening
Keystone Weather - 2026-09-12 - Evening - Partly Cloudy
85°F 30°C
Partly Cloudy
Very warm near 85°F 29°C, though humidity makes it feel like 91°F 33°C, heavy thunderstorms conditions at times, with lower humidity and steady pressure.

Sunday, September 13, 2026

Mid-Morning
Keystone Weather - 2026-09-13 - Morning - Sunny
76°F 24°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-13 - Afternoon - Sunny
87°F 30°C
Sunny
Early-Evening
Keystone Weather - 2026-09-13 - Evening - Sunny
88°F 31°C
Sunny
Warm and summery around 87°F 30°C (feels like 93°F 34°C), sunny throughout the day, with lower humidity and barometric pressure falling. Winds moving from the SSW to the S at 13 mph 20 km/h. Gusts up to 30 mph 48 km/h.

Monday, September 14, 2026

Mid-Morning
Keystone Weather - 2026-09-14 - Morning - Scattered Showers
68°F 20°C
Scattered Showers
Mid-Afternoon
Keystone Weather - 2026-09-14 - Afternoon - Sunny
73°F 23°C
Sunny
Early-Evening
Keystone Weather - 2026-09-14 - Evening - Sunny
69°F 21°C
Sunny
Pleasant near 73°F 23°C, scattered downpours possible, with lower humidity and steady pressure. Winds swinging from the W to the WSW at 6 mph 10 km/h.

Tuesday, September 15, 2026

Mid-Morning
Keystone Weather - 2026-09-15 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-15 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
Keystone Weather - 2026-09-15 - Evening - Sunny
80°F 27°C
Sunny
Balmy with temperatures reaching 80°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds out of the SSW at 9 mph 14 km/h.

Wednesday, September 16, 2026

Mid-Morning
Keystone Weather - 2026-09-16 - Morning - Scattered Showers
74°F 23°C
Scattered Showers
Mid-Afternoon
Keystone Weather - 2026-09-16 - Afternoon - Sunny
87°F 30°C
Sunny
Early-Evening
Keystone Weather - 2026-09-16 - Evening - Scattered Showers
82°F 28°C
Scattered Showers
Warm and summery around 87°F 30°C (feels like 93°F 34°C), periods of heavy rain and gusty conditions, with lower humidity and steady pressure. A stray shower or storm late in the day. Winds turning from the SSW to the S at 12 mph 18 km/h. Gusts up to 21 mph 34 km/h.

Thursday, September 17, 2026

Mid-Morning
Keystone Weather - 2026-09-17 - Morning - Sunny
76°F 24°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-17 - Afternoon - Sunny
87°F 31°C
Sunny
Early-Evening
Keystone Weather - 2026-09-17 - Evening - Nearby Thunderstorms
84°F 29°C
Nearby Thunderstorms
Quite warm reaching 87°F 31°C, feeling like 93°F 34°C during peak afternoon, locally heavy thunderstorms at times, with lower humidity and steady pressure. Winds SW at 9 mph 14 km/h.

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Weather by the Numbers

Fri, 4th
Keystone IN Weather - Friday, Sep 4, 2026 - Patchy Rain Nearby
Hi: 89°F 32°C
Lo: 75°F 24°C
Sunrise 07:11 AM
Sunset 08:08 PM
Wind WSW 13 mph21 km/h
Dew Point 74°F23°C
uv Index 4
Barometric Pressure 29.91 in1013 mb
POP 17% *
Humidity 61%
Sat, 5th
Keystone IN Weather - Saturday, Sep 5, 2026 - Light Rain Shower
Hi: 78°F 26°C
Lo: 66°F 19°C
Sunrise 07:12 AM
Sunset 08:06 PM
Wind E 6 mph9 km/h
Dew Point 67°F19°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 57% *
Humidity 80%
Sun, 6th
Keystone IN Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 72°F 22°C
Lo: 59°F 15°C
Sunrise 07:13 AM
Sunset 08:05 PM
Wind ENE 10 mph16 km/h
Dew Point 59°F15°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 7% *
Humidity 73%
Mon, 7th
Keystone IN Weather - Monday, Sep 7, 2026 - Overcast
Hi: 73°F 23°C
Lo: 58°F 14°C
Sunrise 07:14 AM
Sunset 08:03 PM
Wind ENE 11 mph17 km/h
Dew Point 57°F14°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 16% *
Humidity 69%
Tue, 8th
Keystone IN Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 76°F 25°C
Lo: 62°F 16°C
Sunrise 07:15 AM
Sunset 08:02 PM
Wind SE 6 mph10 km/h
Dew Point 63°F17°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 6% *
Humidity 72%
Wed, 9th
Keystone IN Weather - Wednesday, Sep 9, 2026 - Thundery Outbreaks In Nearby
Hi: 87°F 31°C
Lo: 75°F 24°C
Sunrise 07:16 AM
Sunset 08:00 PM
Wind SW 14 mph22 km/h
Dew Point 71°F22°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 15% *
Humidity 73%
Thu, 10th
Keystone IN Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 85°F 29°C
Lo: 75°F 24°C
Sunrise 07:17 AM
Sunset 07:58 PM
Wind SW 5 mph8 km/h
Dew Point 70°F21°C
uv Index 7
Barometric Pressure 30.03 in1017 mb
POP 6% *
Humidity 70%
Fri, 11th
Keystone IN Weather - Friday, Sep 11, 2026 - Sunny
Hi: 86°F 30°C
Lo: 68°F 20°C
Sunrise 07:18 AM
Sunset 07:57 PM
Wind SSE 6 mph10 km/h
Dew Point 71°F22°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 8% *
Humidity 77%
Sat, 12th
Keystone IN Weather - Saturday, Sep 12, 2026 - Thundery Outbreaks In Nearby
Hi: 87°F 31°C
Lo: 74°F 23°C
Sunrise 07:19 AM
Sunset 07:55 PM
Wind SW 7 mph12 km/h
Dew Point 70°F21°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 7% *
Humidity 67%
Sun, 13th
Keystone IN Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 88°F 31°C
Lo: 74°F 23°C
Sunrise 07:20 AM
Sunset 07:53 PM
Wind SSW 13 mph21 km/h
Dew Point 70°F21°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 5% *
Humidity 67%
Mon, 14th
Keystone IN Weather - Monday, Sep 14, 2026 - Patchy Rain Nearby
Hi: 83°F 29°C
Lo: 63°F 17°C
Sunrise 07:21 AM
Sunset 07:52 PM
Wind WNW 11 mph18 km/h
Dew Point 62°F17°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 28% *
Humidity 75%
Tue, 15th
Keystone IN Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 82°F 28°C
Lo: 59°F 15°C
Sunrise 07:22 AM
Sunset 07:50 PM
Wind S 8 mph12 km/h
Dew Point 60°F15°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 4% *
Humidity 64%
Wed, 16th
Keystone IN Weather - Wednesday, Sep 16, 2026 - Thundery Outbreaks In Nearby
Hi: 88°F 31°C
Lo: 72°F 22°C
Sunrise 07:23 AM
Sunset 07:48 PM
Wind SSW 11 mph18 km/h
Dew Point 70°F21°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 22% *
Humidity 71%
Thu, 17th
Keystone IN Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 88°F 31°C
Lo: 73°F 23°C
Sunrise 07:24 AM
Sunset 07:47 PM
Wind SW 11 mph17 km/h
Dew Point 70°F21°C
uv Index 7
Barometric Pressure 30.15 in1021 mb
POP 4% *
Humidity 64%
* POP = Probability of Precipitation. Data for 12:00 PM.