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Blair IL Weather - Partly Cloudy - 86°F
Partly Cloudy
86°F
Updated 2:14 pm
Feels Like 91°F
Humidity 56%
Wind NNW 6 mph
Barometer  30.05 in
Dew Point 69°F
Blair IL Weather - Partly Cloudy - 30°C
Partly Cloudy
30°C
Updated 2:14 pm
Feels Like 33°C
Humidity 56%
Wind NNW 10 km/h
Barometer  101.8 kPa
Dew Point 21°C
Blair, IL Weather and Current Conditionsblair il weather forecast

Blair, IL Weather Forecast

Blair Illinois WeatherBlair, Illinois Weather Weather Forecast
14 day API weather forecast for Blair, Illinois. Note: The 7-day weather forecast for Blair, 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.
Blair, IL Weather Forecast Dated: 214 PM Sun Sep 13 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Sunday, September 13, 2026

Mid-Morning
Blair Weather - 2026-09-13 - Morning - Overcast
75°F 24°C
Overcast
Mid-Afternoon
Blair Weather - 2026-09-13 - Afternoon - Partly Cloudy
90°F 32°C
Partly Cloudy
Early-Evening
Blair Weather - 2026-09-13 - Evening - Cloudy
82°F 28°C
Cloudy
Very hot with temperatures reaching 90°F 32°C, overcast in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds turning from the NNW to the NNE at 8 mph 14 km/h.

Monday, September 14, 2026

Mid-Morning
Blair Weather - 2026-09-14 - Morning - Sunny
69°F 20°C
Sunny
Mid-Afternoon
Blair Weather - 2026-09-14 - Afternoon - Cloudy
88°F 31°C
Cloudy
Early-Evening
Blair Weather - 2026-09-14 - Evening - Overcast
82°F 28°C
Overcast
Balmy with temperatures reaching 88°F 31°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the E to the ESE at 11 mph 18 km/h. Gusts up to 20 mph 32 km/h.

Tuesday, September 15, 2026

Mid-Morning
Blair Weather - 2026-09-15 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Blair Weather - 2026-09-15 - Afternoon - Overcast
100°F 38°C
Overcast
Early-Evening
Blair Weather - 2026-09-15 - Evening - Partly Cloudy
86°F 30°C
Partly Cloudy
Dangerously hot with a high of 100°F 38°C (heat index near 103°F 40°C), sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the SSW to the NNE at 12 mph 18 km/h. Gusts up to 20 mph 33 km/h.

Wednesday, September 16, 2026

Mid-Morning
Blair Weather - 2026-09-16 - Morning - Sunny
76°F 25°C
Sunny
Mid-Afternoon
Blair Weather - 2026-09-16 - Afternoon - Partly Cloudy
100°F 38°C
Partly Cloudy
Early-Evening
Blair Weather - 2026-09-16 - Evening - Overcast
84°F 29°C
Overcast
Scorching heat reaching 100°F 38°C, feeling like 103°F 39°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds swinging from the N to the ESE at 8 mph 13 km/h.

Thursday, September 17, 2026

Mid-Morning
Blair Weather - 2026-09-17 - Morning - Scattered Showers
79°F 26°C
Scattered Showers
Mid-Afternoon
Blair Weather - 2026-09-17 - Afternoon - Partly Cloudy
93°F 34°C
Partly Cloudy
Early-Evening
Blair Weather - 2026-09-17 - Evening - Overcast
80°F 27°C
Overcast
Hot and sweltering around 93°F 34°C (heat index 97°F 36°C), scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the NW to the N at 10 mph 17 km/h.

Friday, September 18, 2026

Mid-Morning
Blair Weather - 2026-09-18 - Morning - Light Fog
74°F 24°C
Light Fog
Mid-Afternoon
Blair Weather - 2026-09-18 - Afternoon - Sunny
87°F 31°C
Sunny
Early-Evening
Blair Weather - 2026-09-18 - Evening - Sunny
80°F 27°C
Sunny
Warm and summery near 87°F 31°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds turning from the NE to the E at 7 mph 12 km/h.

Saturday, September 19, 2026

Mid-Morning
Blair Weather - 2026-09-19 - Morning - Sunny
78°F 25°C
Sunny
Mid-Afternoon
Blair Weather - 2026-09-19 - Afternoon - Sunny
97°F 36°C
Sunny
Early-Evening
Blair Weather - 2026-09-19 - Evening - Overcast
89°F 32°C
Overcast
Hot and sweltering around 97°F 36°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling.

Sunday, September 20, 2026

Mid-Morning
Blair Weather - 2026-09-20 - Morning - Overcast
73°F 23°C
Overcast
Mid-Afternoon
Blair Weather - 2026-09-20 - Afternoon - Overcast
87°F 31°C
Overcast
Early-Evening
Blair Weather - 2026-09-20 - Evening - Scattered Showers
78°F 26°C
Scattered Showers
Quite warm reaching 87°F 31°C, feeling like 90°F 32°C during peak afternoon, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the SE to the SSW at 9 mph 14 km/h.

Monday, September 21, 2026

Mid-Morning
Blair Weather - 2026-09-21 - Morning - Light Fog
73°F 23°C
Light Fog
Mid-Afternoon
Blair Weather - 2026-09-21 - Afternoon - Light Showers
76°F 25°C
Light Showers
Early-Evening
Blair Weather - 2026-09-21 - Evening - Light Showers
69°F 20°C
Light Showers
Mild temperatures up to 76°F 25°C, dry early, with showers continuing through afternoon and evening, with steady humidity and steady pressure. Winds moving from the SW to the NW at 11 mph 17 km/h.

Tuesday, September 22, 2026

Mid-Morning
Blair Weather - 2026-09-22 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Blair Weather - 2026-09-22 - Afternoon - Overcast
60°F 16°C
Overcast
Early-Evening
Blair Weather - 2026-09-22 - Evening - Overcast
57°F 14°C
Overcast
Mildly cool near 60°F 16°C, overcast throughout the day, with lower humidity and steady pressure. Winds NW at 15 mph 25 km/h. Gusts up to 22 mph 36 km/h.

Wednesday, September 23, 2026

Mid-Morning
Blair Weather - 2026-09-23 - Morning - Partly Cloudy
55°F 13°C
Partly Cloudy
Mid-Afternoon
Blair Weather - 2026-09-23 - Afternoon - Partly Cloudy
66°F 19°C
Partly Cloudy
Early-Evening
Blair Weather - 2026-09-23 - Evening - Sunny
63°F 17°C
Sunny
Comfortable at 66°F 19°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the NW to the NNW at 11 mph 18 km/h. Gusts up to 23 mph 37 km/h.

Thursday, September 24, 2026

Mid-Morning
Blair Weather - 2026-09-24 - Morning - Sunny
58°F 14°C
Sunny
Mid-Afternoon
Blair Weather - 2026-09-24 - Afternoon - Scattered Showers
69°F 21°C
Scattered Showers
Early-Evening
Blair Weather - 2026-09-24 - Evening - Overcast
64°F 18°C
Overcast
Comfortable with temperatures reaching 69°F 21°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the NNW to the NNE at 9 mph 15 km/h.

Friday, September 25, 2026

Mid-Morning
Blair Weather - 2026-09-25 - Morning - Cloudy
63°F 17°C
Cloudy
Mid-Afternoon
Blair Weather - 2026-09-25 - Afternoon - Sunny
74°F 23°C
Sunny
Early-Evening
Blair Weather - 2026-09-25 - Evening - Sunny
66°F 19°C
Sunny
Enjoyable around 74°F 23°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds switching from the NNE to the NE at 7 mph 12 km/h.

Saturday, September 26, 2026

Mid-Morning
Blair Weather - 2026-09-26 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Blair Weather - 2026-09-26 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Blair Weather - 2026-09-26 - Evening - Sunny
69°F 21°C
Sunny
Mild temperatures up to 77°F 25°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.

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Weather by the Numbers

Sun, 13th
Blair IL Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 90°F 32°C
Lo: 71°F 22°C
Sunrise 06:39 AM
Sunset 07:10 PM
Wind NNW 4 mph7 km/h
Dew Point 67°F20°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 13% *
Humidity 57%
Mon, 14th
Blair IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 89°F 32°C
Lo: 63°F 17°C
Sunrise 06:39 AM
Sunset 07:08 PM
Wind E 11 mph18 km/h
Dew Point 53°F12°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 38%
Tue, 15th
Blair IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 100°F 38°C
Lo: 73°F 23°C
Sunrise 06:40 AM
Sunset 07:07 PM
Wind SW 12 mph19 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 33%
Wed, 16th
Blair IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 100°F 38°C
Lo: 73°F 23°C
Sunrise 06:41 AM
Sunset 07:05 PM
Wind WSW 5 mph8 km/h
Dew Point 67°F20°C
uv Index 7
Barometric Pressure 30.21 in1023 mb
POP 1% *
Humidity 44%
Thu, 17th
Blair IL Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 93°F 34°C
Lo: 74°F 23°C
Sunrise 06:42 AM
Sunset 07:03 PM
Wind N 8 mph13 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 30.21 in1023 mb
POP 11% *
Humidity 47%
Fri, 18th
Blair IL Weather - Friday, Sep 18, 2026 - Partly Cloudy
Hi: 88°F 31°C
Lo: 68°F 20°C
Sunrise 06:43 AM
Sunset 07:02 PM
Wind NE 9 mph14 km/h
Dew Point 62°F17°C
uv Index 7
Barometric Pressure 30.15 in1021 mb
POP 2% *
Humidity 50%
Sat, 19th
Blair IL Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 98°F 36°C
Lo: 68°F 20°C
Sunrise 06:44 AM
Sunset 07:00 PM
Wind SSW 7 mph11 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 42%
Sun, 20th
Blair IL Weather - Sunday, Sep 20, 2026 - Patchy Rain Nearby
Hi: 88°F 31°C
Lo: 70°F 21°C
Sunrise 06:45 AM
Sunset 06:59 PM
Wind NE 6 mph10 km/h
Dew Point 66°F19°C
uv Index 6
Barometric Pressure 29.85 in1011 mb
POP 12% *
Humidity 58%
Mon, 21st
Blair IL Weather - Monday, Sep 21, 2026 - Patchy Rain Nearby
Hi: 78°F 25°C
Lo: 62°F 16°C
Sunrise 06:46 AM
Sunset 06:57 PM
Wind W 6 mph10 km/h
Dew Point 67°F20°C
uv Index 5
Barometric Pressure 29.83 in1010 mb
POP 27% *
Humidity 80%
Tue, 22nd
Blair IL Weather - Tuesday, Sep 22, 2026 - Overcast
Hi: 61°F 16°C
Lo: 54°F 12°C
Sunrise 06:46 AM
Sunset 06:55 PM
Wind NW 15 mph24 km/h
Dew Point 49°F10°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 18% *
Humidity 68%
Wed, 23rd
Blair IL Weather - Wednesday, Sep 23, 2026 - Cloudy
Hi: 69°F 20°C
Lo: 51°F 10°C
Sunrise 06:47 AM
Sunset 06:54 PM
Wind NNW 14 mph23 km/h
Dew Point 46°F8°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 7% *
Humidity 61%
Thu, 24th
Blair IL Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 69°F 21°C
Lo: 51°F 11°C
Sunrise 06:48 AM
Sunset 06:52 PM
Wind N 14 mph22 km/h
Dew Point 47°F9°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 6% *
Humidity 51%
Fri, 25th
Blair IL Weather - Friday, Sep 25, 2026 - Sunny
Hi: 75°F 24°C
Lo: 59°F 15°C
Sunrise 06:49 AM
Sunset 06:51 PM
Wind NNE 10 mph17 km/h
Dew Point 48°F9°C
uv Index 6
Barometric Pressure 30.18 in1022 mb
POP 1% *
Humidity 46%
Sat, 26th
Blair IL Weather - Saturday, Sep 26, 2026 - Sunny
Hi: 78°F 25°C
Lo: 56°F 13°C
Sunrise 06:50 AM
Sunset 06:49 PM
Wind NNE 6 mph10 km/h
Dew Point 51°F11°C
uv Index 6
Barometric Pressure 30.21 in1023 mb
POP 2% *
Humidity 48%
* POP = Probability of Precipitation. Data for 12:00 PM.