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Clarksville IL Weather - Clear - 81°F
Clear
81°F
Updated 4:06 pm
Feels Like 73°F
Humidity 22%
Wind W 6 mph
Barometer  30.06 in
Dew Point 39°F
Clarksville IL Weather - Clear - 27°C
Clear
27°C
Updated 4:06 pm
Feels Like 23°C
Humidity 22%
Wind W 10 km/h
Barometer  101.7 kPa
Dew Point 4°C
Clarksville, IL Weather and Current Conditionsclarksville il weather forecast

Clarksville, IL Weather Forecast

Clarksville Illinois WeatherClarksville, Illinois Weather Weather Forecast
14 day API weather forecast for Clarksville, Illinois. Note: The 7-day weather forecast for Clarksville, IL 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.
Clarksville, IL Weather Forecast Dated: 406 PM Thu Oct 08 2026
Expect a mild stretch with plenty of sunshine and occasional showers over the coming period. moderate humidity and a stable pattern will dominate.

Thursday, October 8, 2026

Mid-Morning
Clarksville Weather - 2026-10-08 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
Clarksville Weather - 2026-10-08 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
Clarksville Weather - 2026-10-08 - Evening - Sunny
68°F 20°C
Sunny
Warm and summery near 80°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the N to the NE at 6 mph 10 km/h.

Friday, October 9, 2026

Mid-Morning
Clarksville Weather - 2026-10-09 - Morning - Sunny
65°F 18°C
Sunny
Mid-Afternoon
Clarksville Weather - 2026-10-09 - Afternoon - Sunny
85°F 29°C
Sunny
Early-Evening
Clarksville Weather - 2026-10-09 - Evening - Sunny
72°F 22°C
Sunny
Balmy with temperatures reaching 85°F 29°C, sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the S at 9 mph 14 km/h.

Saturday, October 10, 2026

Mid-Morning
Clarksville Weather - 2026-10-10 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Clarksville Weather - 2026-10-10 - Afternoon - Overcast
76°F 24°C
Overcast
Early-Evening
Clarksville Weather - 2026-10-10 - Evening - Overcast
68°F 20°C
Overcast
Enjoyable around 76°F 24°C, overcast throughout the day, with steady humidity and steady pressure. Winds moving from the SE to the E at 8 mph 13 km/h.

Sunday, October 11, 2026

Mid-Morning
Clarksville Weather - 2026-10-11 - Morning - Light Showers
60°F 16°C
Light Showers
Mid-Afternoon
Clarksville Weather - 2026-10-11 - Afternoon - Partly Cloudy
68°F 20°C
Partly Cloudy
Early-Evening
Clarksville Weather - 2026-10-11 - Evening - Sunny
65°F 19°C
Sunny
Mild temperatures up to 68°F 20°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure.

Monday, October 12, 2026

Mid-Morning
Clarksville Weather - 2026-10-12 - Morning - Sunny
67°F 20°C
Sunny
Mid-Afternoon
Clarksville Weather - 2026-10-12 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Clarksville Weather - 2026-10-12 - Evening - Sunny
75°F 24°C
Sunny
Very warm with a high of 88°F 31°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the SSW to the S at 8 mph 13 km/h.

Tuesday, October 13, 2026

Mid-Morning
Clarksville Weather - 2026-10-13 - Morning - Sunny
76°F 24°C
Sunny
Mid-Afternoon
Clarksville Weather - 2026-10-13 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Clarksville Weather - 2026-10-13 - Evening - Sunny
78°F 25°C
Sunny
Warm and summery near 88°F 31°C, sunny through the afternoon, turning partly cloudy this evening, with increasing humidity and steady pressure. Winds shifting from the W to the SE at 9 mph 14 km/h.

Wednesday, October 14, 2026

Mid-Morning
Clarksville Weather - 2026-10-14 - Morning - Light Rain
64°F 18°C
Light Rain
Mid-Afternoon
Clarksville Weather - 2026-10-14 - Afternoon - Heavy Rain
69°F 21°C
Heavy Rain
Early-Evening
Clarksville Weather - 2026-10-14 - Evening - Light Showers
70°F 21°C
Light Showers
Comfortable with temperatures reaching 69°F 21°C, rounds of showers expected off and on all day, with increasing humidity and steady pressure. Winds turning from the E to the SE at 9 mph 14 km/h. Gusts up to 20 mph 32 km/h.

Thursday, October 15, 2026

Mid-Morning
Clarksville Weather - 2026-10-15 - Morning - Partly Cloudy
78°F 26°C
Partly Cloudy
Mid-Afternoon
Clarksville Weather - 2026-10-15 - Afternoon - Overcast
89°F 32°C
Overcast
Early-Evening
Clarksville Weather - 2026-10-15 - Evening - Scattered Showers
77°F 25°C
Scattered Showers
Quite warm reaching 89°F 32°C, feeling like 93°F 34°C during peak afternoon, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the SW to the E at 5 mph 8 km/h.

Friday, October 16, 2026

Mid-Morning
Clarksville Weather - 2026-10-16 - Morning - Light Fog
71°F 22°C
Light Fog
Mid-Afternoon
Clarksville Weather - 2026-10-16 - Afternoon - Scattered Showers
66°F 19°C
Scattered Showers
Early-Evening
Clarksville Weather - 2026-10-16 - Evening - Overcast
60°F 15°C
Overcast
Refreshing around 66°F 19°C, locally heavy downpours at times, with lower humidity and barometric pressure rising. Winds moving from the NNE to the N at 15 mph 23 km/h. Gusts up to 25 mph 40 km/h.

Saturday, October 17, 2026

Mid-Morning
Clarksville Weather - 2026-10-17 - Morning - Sunny
51°F 10°C
Sunny
Mid-Afternoon
Clarksville Weather - 2026-10-17 - Afternoon - Sunny
57°F 14°C
Sunny
Early-Evening
Clarksville Weather - 2026-10-17 - Evening - Sunny
48°F 9°C
Sunny
Cool and brisk at 57°F 14°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the ESE to the SE at 11 mph 17 km/h. Gusts up to 21 mph 33 km/h.

Sunday, October 18, 2026

Mid-Morning
Clarksville Weather - 2026-10-18 - Morning - Sunny
46°F 8°C
Sunny
Mid-Afternoon
Clarksville Weather - 2026-10-18 - Afternoon - Sunny
58°F 15°C
Sunny
Early-Evening
Clarksville Weather - 2026-10-18 - Evening - Sunny
49°F 10°C
Sunny
Comfortable at 58°F 15°C, sunny throughout the day, with steady humidity and steady pressure. Winds out of the ENE at 9 mph 14 km/h.

Monday, October 19, 2026

Mid-Morning
Clarksville Weather - 2026-10-19 - Morning - Sunny
47°F 8°C
Sunny
Mid-Afternoon
Clarksville Weather - 2026-10-19 - Afternoon - Sunny
63°F 17°C
Sunny
Early-Evening
Clarksville Weather - 2026-10-19 - Evening - Sunny
54°F 13°C
Sunny
Cool with a high near 63°F 17°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds blowing from the SE at 7 mph 11 km/h.

Tuesday, October 20, 2026

Mid-Morning
Clarksville Weather - 2026-10-20 - Morning - Cloudy
55°F 13°C
Cloudy
Mid-Afternoon
Clarksville Weather - 2026-10-20 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Clarksville Weather - 2026-10-20 - Evening - Sunny
60°F 16°C
Sunny
Enjoyable around 70°F 21°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds S at 11 mph 17 km/h.

Wednesday, October 21, 2026

Mid-Morning
Clarksville Weather - 2026-10-21 - Morning - Cloudy
56°F 13°C
Cloudy
Mid-Afternoon
Clarksville Weather - 2026-10-21 - Afternoon - Scattered Showers
66°F 19°C
Scattered Showers
Early-Evening
Clarksville Weather - 2026-10-21 - Evening - Light Showers
60°F 16°C
Light Showers
Mildly cool near 66°F 19°C, scattered downpours possible, with increasing humidity and barometric pressure falling. Winds moving from the SSW to the SW at 7 mph 12 km/h.

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Weather by the Numbers

Thu, 8th
Clarksville IL Weather - Thursday, Oct 8, 2026 - Sunny
Hi: 80°F 27°C
Lo: 56°F 13°C
Sunrise 06:54 AM
Sunset 06:22 PM
Wind W 4 mph6 km/h
Dew Point 42°F6°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 29%
Fri, 9th
Clarksville IL Weather - Friday, Oct 9, 2026 - Sunny
Hi: 85°F 29°C
Lo: 55°F 13°C
Sunrise 06:55 AM
Sunset 06:21 PM
Wind S 10 mph16 km/h
Dew Point 42°F6°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 0% *
Humidity 28%
Sat, 10th
Clarksville IL Weather - Saturday, Oct 10, 2026 - Overcast
Hi: 76°F 24°C
Lo: 60°F 16°C
Sunrise 06:56 AM
Sunset 06:19 PM
Wind SE 11 mph18 km/h
Dew Point 44°F7°C
uv Index 2
Barometric Pressure 30.15 in1021 mb
POP 10% *
Humidity 34%
Sun, 11th
Clarksville IL Weather - Sunday, Oct 11, 2026 - Overcast
Hi: 71°F 21°C
Lo: 59°F 15°C
Sunrise 06:57 AM
Sunset 06:18 PM
Wind NNE 5 mph9 km/h
Dew Point 58°F14°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 27% *
Humidity 85%
Mon, 12th
Clarksville IL Weather - Monday, Oct 12, 2026 - Sunny
Hi: 88°F 31°C
Lo: 58°F 15°C
Sunrise 06:58 AM
Sunset 06:16 PM
Wind SSW 10 mph15 km/h
Dew Point 56°F13°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 42%
Tue, 13th
Clarksville IL Weather - Tuesday, Oct 13, 2026 - Sunny
Hi: 88°F 31°C
Lo: 68°F 20°C
Sunrise 06:59 AM
Sunset 06:15 PM
Wind W 13 mph20 km/h
Dew Point 59°F15°C
uv Index 7
Barometric Pressure 29.83 in1010 mb
POP 2% *
Humidity 41%
Wed, 14th
Clarksville IL Weather - Wednesday, Oct 14, 2026 - Patchy Rain Nearby
Hi: 72°F 22°C
Lo: 61°F 16°C
Sunrise 07:00 AM
Sunset 06:13 PM
Wind ESE 7 mph11 km/h
Dew Point 61°F16°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 88% *
Humidity 86%
Thu, 15th
Clarksville IL Weather - Thursday, Oct 15, 2026 - Sunny
Hi: 89°F 32°C
Lo: 71°F 22°C
Sunrise 07:01 AM
Sunset 06:12 PM
Wind SW 11 mph18 km/h
Dew Point 67°F19°C
uv Index 8
Barometric Pressure 30 in1016 mb
POP 7% *
Humidity 52%
Fri, 16th
Clarksville IL Weather - Friday, Oct 16, 2026 - Partly Cloudy
Hi: 73°F 23°C
Lo: 56°F 13°C
Sunrise 07:02 AM
Sunset 06:10 PM
Wind SW 11 mph17 km/h
Dew Point 66°F19°C
uv Index 6
Barometric Pressure 30.18 in1022 mb
POP 21% *
Humidity 81%
Sat, 17th
Clarksville IL Weather - Saturday, Oct 17, 2026 - Sunny
Hi: 57°F 14°C
Lo: 43°F 6°C
Sunrise 07:03 AM
Sunset 06:09 PM
Wind WSW 14 mph22 km/h
Dew Point 34°F1°C
uv Index 4
Barometric Pressure 30.45 in1031 mb
POP 1% *
Humidity 44%
Sun, 18th
Clarksville IL Weather - Sunday, Oct 18, 2026 - Partly Cloudy
Hi: 59°F 15°C
Lo: 38°F 3°C
Sunrise 07:04 AM
Sunset 06:07 PM
Wind ENE 9 mph15 km/h
Dew Point 28°F-2°C
uv Index 4
Barometric Pressure 30.53 in1034 mb
POP 1% *
Humidity 36%
Mon, 19th
Clarksville IL Weather - Monday, Oct 19, 2026 - Sunny
Hi: 64°F 18°C
Lo: 38°F 4°C
Sunrise 07:05 AM
Sunset 06:06 PM
Wind SE 8 mph12 km/h
Dew Point 26°F-3°C
uv Index 4
Barometric Pressure 30.47 in1032 mb
POP 1% *
Humidity 30%
Tue, 20th
Clarksville IL Weather - Tuesday, Oct 20, 2026 - Sunny
Hi: 70°F 21°C
Lo: 46°F 8°C
Sunrise 07:06 AM
Sunset 06:05 PM
Wind S 11 mph17 km/h
Dew Point 38°F3°C
uv Index 5
Barometric Pressure 30.3 in1026 mb
POP 1% *
Humidity 36%
Wed, 21st
Clarksville IL Weather - Wednesday, Oct 21, 2026 - Overcast
Hi: 67°F 19°C
Lo: 51°F 11°C
Sunrise 07:07 AM
Sunset 06:03 PM
Wind SSW 11 mph18 km/h
Dew Point 40°F5°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 11% *
Humidity 45%
* POP = Probability of Precipitation. Data for 12:00 PM.