As of 14:01 CDT

Weather in Blair, IL

79°

Blair, Thursday, 15 October, 14:01

Overcast. Feels like 79°. High 79°, low 69°.

Pressure29.94 inHg

Wind6.9 mph SW

Humidity92%

Visibility3.9 mi

Dew point76°

See detailed hourly forecast

Fri, 1670° / 52°

0.05

70 °

Blair, Friday, 16 October

Light rain. High 70°, low 52°.

Pressure30.21 inHg

Wind18.2 mph NW

Humidity46%

Visibility6.2 mi

Dew point38°

Sat, 1758° / 45°

58 °

Blair, Saturday, 17 October

Clear. High 58°, low 45°.

Pressure30.56 inHg

Wind4.5 mph NE

Humidity52%

Visibility6.2 mi

Dew point38°

Sun, 1863° / 43°

63 °

Blair, Sunday, 18 October

Clear. High 63°, low 43°.

Pressure30.47 inHg

Wind6.9 mph S

Humidity43%

Visibility6.2 mi

Dew point37°

Mon, 1967° / 46°

67 °

Blair, Monday, 19 October

Partly cloudy. High 67°, low 46°.

Pressure30.39 inHg

Wind6.8 mph S

Humidity54%

Visibility6.2 mi

Dew point46°

Tue, 2072° / 49°

72 °

Blair, Tuesday, 20 October

Mostly clear. High 72°, low 49°.

Pressure30.30 inHg

Wind4.4 mph SE

Humidity50%

Visibility—

Dew point48°

Wed, 2176° / 53°

76 °

Blair, Wednesday, 21 October

Clear. High 76°, low 53°.

Pressure30.30 inHg

Wind6.1 mph E

Humidity33%

Visibility—

Dew point41°

Thu, 2277° / 54°

77 °

Blair, Thursday, 22 October

Partly cloudy. High 77°, low 54°.

Pressure30.21 inHg

Wind6.6 mph SE

Humidity31%

Visibility—

Dew point40°

Fri, 2377° / 55°

77 °

Blair, Friday, 23 October

Overcast. High 77°, low 55°.

Pressure30.18 inHg

Wind10.2 mph SE

Humidity33%

Visibility—

Dew point42°

Sat, 2474° / 56°

74 °

Blair, Saturday, 24 October

Overcast. High 74°, low 56°.

Pressure30.18 inHg

Wind15.7 mph S

Humidity36%

Visibility—

Dew point43°

Sun, 2574° / 52°

74 °

Blair, Sunday, 25 October

Clear. High 74°, low 52°.

Pressure30.45 inHg

Wind9.3 mph N

Humidity44%

Visibility—

Dew point46°

Mon, 2678° / 51°

78 °

Blair, Monday, 26 October

Overcast. High 78°, low 51°.

Pressure30.39 inHg

Wind7.4 mph SE

Humidity42%

Visibility—

Dew point48°

Tue, 2778° / 58°

78 °

Blair, Tuesday, 27 October

Overcast. High 78°, low 58°.

Pressure30.21 inHg

Wind14.2 mph SW

Humidity33%

Visibility—

Dew point44°

Wed, 2874° / 58°

74 °

Blair, Wednesday, 28 October

Overcast. High 74°, low 58°.

Pressure30.09 inHg

Wind13.7 mph SW

Humidity38%

Visibility—

Dew point45°

Thu, 2976° / 66°

0.11

76 °

Blair, Thursday, 29 October

Light rain. High 76°, low 66°.

Pressure30.00 inHg

Wind14.7 mph S

Humidity63%

Visibility—

Dew point58°

Fri, 3077° / 64°

0.35

77 °

Blair, Friday, 30 October

Light rain. High 77°, low 64°.

Pressure29.85 inHg

Wind16.9 mph SW

Humidity78%

Visibility—

Dew point65°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Blair, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Blair, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.