Blair, IL Weather Forecast

Local 7-day forecast

66°
F

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Blair, IL in one place.

Sunday, April 19, 2026
Wind: 6 to 12 mph NW
Sunday

Sunny, with a high near 66.

Local 7-day forecast

Local Weather Overview

This forecast page for Blair, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 16, 2026 7:51 PM CDT.

The active forecast window currently covers Apr 19 to Apr 22, 2026 for Blair, IL.

Page Snapshot

Page focus
city weather
Forecast window
Apr 19 to Apr 22, 2026
Latest sync
Apr 16, 2026 7:51 PM CDT
Forecast office
LSX
Source
NOAA / NWS
Next High
66°F
Sunday
Next Low
41°F
Sunday Night
Rain Outlook
0
Periods mentioning precipitation
Windiest
8 to 13 mph
Tuesday

Daily Outlook

Today
Apr 19
Sunny
66 °F
/ 41°F
Wind 6 to 12 mph
Mon
Apr 20
Sunny
72 °F
/ 51°F
Wind 3 to 8 mph
Tue
Apr 21
Sunny
77 °F
/ 54°F
Wind 8 to 13 mph
Wed
Apr 22
Mostly Sunny
77 °F
/ 56°F
Wind 6 to 9 mph

This Week in Blair

Tuesday looks like the warmest upcoming period in Blair at 77 degrees F.

Sunday Night is the coolest period ahead with temperatures near 41 degrees F.

The strongest winds are forecast for Tuesday at about 8 to 13 mph SW.

The forecast from Apr 19 through Apr 22 stays mostly dry.

Forecast Details

Last updated
Apr 16, 2026 7:51 PM CDT
Coverage
4 days
Time zone
America/Chicago
Forecast office
LSX
Radar station
KLSX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Sunday Night
Apr 19
41°F
Clear
3 to 7 mph NE

Clear, with a low around 41.

Monday
Apr 20
72°F
Sunny
3 to 8 mph SE

Sunny, with a high near 72.

Monday Night
Apr 20
51°F
Mostly Clear
8 mph S

Mostly clear, with a low around 51.

Tuesday
Apr 21
77°F
Sunny
8 to 13 mph SW

Sunny, with a high near 77.

Tuesday Night
Apr 21
54°F
Partly Cloudy
7 to 10 mph SW

Partly cloudy, with a low around 54.

Wednesday
Apr 22
77°F
Mostly Sunny
6 to 9 mph SW

Mostly sunny, with a high near 77.

Wednesday Night
Apr 22
56°F
Mostly Clear
7 mph S

Mostly clear, with a low around 56.

Detailed Forecast

Period Conditions Temp Wind
Sunday
Apr 19
Sunny
66°F
6 to 12 mph
NW
Sunday Night
Apr 19
Clear
41°F
3 to 7 mph
NE
Monday
Apr 20
Sunny
72°F
3 to 8 mph
SE
Monday Night
Apr 20
Mostly Clear
51°F
8 mph
S
Tuesday
Apr 21
Sunny
77°F
8 to 13 mph
SW
Tuesday Night
Apr 21
Partly Cloudy
54°F
7 to 10 mph
SW
Wednesday
Apr 22
Mostly Sunny
77°F
6 to 9 mph
SW
Wednesday Night
Apr 22
Mostly Clear
56°F
7 mph
S
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.