Blair, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Mostly Clear 69°F 21°C	Observed at: Blair, IL	Elevation: 486 ft | 148 m
	Last Updated: July 29, 5:30 AM Timezone: GMT -5/-4
	Sky Conditions: Mostly Clear	Temperature: 69°F | 21°C
	Pressure: 29.37 in | 994.5 mb	Dewpoint: 67°F | 19°C
	Humidity: 93%	Wind: NNE 4 mph | NNE 6 kph
	Feels Like: 74°F | 23°C	Visibility: 26.9 mi | 43.3 km
	Lat/Long: 38.0447 | -89.7419	Sunrise: 5:59 AM   Sunset: 8:11 PM

7 Day Graphical Forecast

Valid: 5:32 AM 7/29/2026

Tonight Partly Cloudy 68 °F 1% Chance Precipitation Thursday Overcast 88 |65 °F 0% Chance Precipitation Friday Heavy Drizzle 81 |65 °F 68% Chance Precipitation Saturday Drizzle 75 |67 °F 68% Chance Precipitation Sunday Mostly Clear 83 |62 °F 28% Chance Precipitation Monday Clear 86 |64 °F 22% Chance Precipitation Tuesday Clear 89 |62 °F 12% Chance Precipitation

7 Hour Graphical Forecast

Valid: 5:32 AM 7/29/2026

5 AM Partly Cloudy 70 °F 0% Chance Precipitation

6 AM Clear 68 °F 1% Chance Precipitation

7 AM Clear 69 °F 1% Chance Precipitation

8 AM Clear 71 °F 1% Chance Precipitation

9 AM Clear 74 °F 1% Chance Precipitation

10 AM Clear 77 °F 1% Chance Precipitation

11 AM Clear 79 °F 1% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Blair, IL - (Fahrenheit & Celsius) Valid: 5:32 AM 7/29/2026 Tonight Partly Cloudy with a low around 68°F [20°C]. NNE wind to around 9 mph [14 kph], with gusts to near 18 mph [29 kph]. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 88°F [31°C]. E wind to around 6 mph [10 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 67°F [19°C] with humidity of 77%. Pressure around 29.37 in [994.5 mb]. UV Index: 7.5. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 65°F [18°C]. E wind to around 6 mph [10 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Heavy Drizzle with a high near 81°F [27°C]. SSE wind to around 14 mph [23 kph], with gusts to near 31 mph [50 kph]. Dewpoint near 67°F [19°C] with humidity of 90%. Pressure around 29.37 in [994.5 mb]. UV Index: 6.65. Chance of precipitation 68% with QPF of 0.11 in [2.7 mm]. Friday Night Heavy Drizzle with a low around 65°F [18°C]. SSE wind to around 14 mph [23 kph], with gusts to near 31 mph [50 kph]. Chance of precipitation 68% with QPF of 0.11 in [2.7 mm]. Saturday Drizzle with a high near 75°F [24°C]. N wind to around 15 mph [24 kph], with gusts to near 30 mph [48 kph]. Dewpoint near 67°F [19°C] with humidity of 98%. Pressure around 29.37 in [994.5 mb]. UV Index: 1.95. Chance of precipitation 68% with QPF of 0.06 in [1.6 mm]. Saturday Night Drizzle with a low around 67°F [20°C]. N wind to around 15 mph [24 kph], with gusts to near 30 mph [48 kph]. Chance of precipitation 68% with QPF of 0.06 in [1.6 mm]. Sunday Mostly Clear with a high near 83°F [28°C]. NNE wind to around 14 mph [22 kph], with gusts to near 26 mph [41 kph]. Dewpoint near 67°F [19°C] with humidity of 98%. Pressure around 29.37 in [994.5 mb]. UV Index: 7.45. Chance of precipitation 28% with QPF of 0.00 in [0.0 mm]. Sunday Night Mostly Clear with a low around 62°F [17°C]. NNE wind to around 14 mph [22 kph], with gusts to near 26 mph [41 kph]. Chance of precipitation 28% with QPF of 0.00 in [0.0 mm]. Monday Clear with a high near 86°F [30°C]. ENE wind to around 10 mph [16 kph], with gusts to near 13 mph [21 kph]. Dewpoint near 67°F [19°C] with humidity of 97%. Pressure around 29.37 in [994.5 mb]. UV Index: 7.5. Chance of precipitation 22% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 64°F [18°C]. ENE wind to around 10 mph [16 kph], with gusts to near 13 mph [21 kph]. Chance of precipitation 22% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 89°F [31°C]. E wind to around 9 mph [14 kph], with gusts to near 20 mph [32 kph]. Dewpoint near 67°F [19°C] with humidity of 94%. Pressure around 29.37 in [994.5 mb]. UV Index: 7.5. Chance of precipitation 12% with QPF of 0.00 in [0.0 mm]. Tuesday Night Clear with a low around 62°F [17°C]. E wind to around 9 mph [14 kph], with gusts to near 20 mph [32 kph]. Chance of precipitation 12% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Blair, IL

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 2.7 mm | 0.11 in

Friday Night: 2.7 mm | 0.11 in

Saturday: 1.6 mm | 0.06 in

Saturday Night: 1.6 mm | 0.06 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.0 mm | 0.00 in

Tuesday Night: 0.0 mm | 0.00 in

7 Day and Night - Maximum Wind Speed Forecast for Blair, IL

Tonight: NNE @ 14 kph | 9 mph

Thursday: E @ 10 kph | 6 mph

Thursday Night: E @ 10 kph | 6 mph

Friday: SSE @ 23 kph | 14 mph

Friday Night: SSE @ 23 kph | 14 mph

Saturday: N @ 24 kph | 15 mph

Saturday Night: N @ 24 kph | 15 mph

Sunday: NNE @ 22 kph | 14 mph

Sunday Night: NNE @ 22 kph | 14 mph

Monday: ENE @ 16 kph | 10 mph

Monday Night: ENE @ 16 kph | 10 mph

Tuesday: E @ 14 kph | 9 mph

Tuesday Night: E @ 14 kph | 9 mph

7 Day and Night - Maximum Humidity Forecast for Blair, IL

Tonight: 93 %

Thursday: 77 %

Thursday Night: 77 %

Friday: 90 %

Friday Night: 90 %

Saturday: 98 %

Saturday Night: 98 %

Sunday: 98 %

Sunday Night: 98 %

Monday: 97 %

Monday Night: 97 %

Tuesday: 94 %

Tuesday Night: 94 %

7 Day and Night - Snowfall Totals Forecast for Blair, IL

Tonight: 0.0 cm | 0.00 in

Thursday: 0.0 cm | 0.00 in

Thursday Night: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

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