As of 10:14 CDT

Weather in Alda, IL

77°

Alda, Friday, 9 October, 10:14

Clear. Feels like 76°. High 86°, low 53°.

Pressure30.15 inHg

Wind9.2 mph S

Humidity40%

Visibility6.2 mi

Dew point51°

See detailed hourly forecast

Sat, 1076° / 55°

76 °

Alda, Saturday, 10 October

Overcast. High 76°, low 55°.

Pressure30.06 inHg

Wind6 mph E

Humidity53%

Visibility6.2 mi

Dew point53°

Sun, 1182° / 54°

82 °

Alda, Sunday, 11 October

Clear. High 82°, low 54°.

Pressure29.94 inHg

Wind6 mph NW

Humidity56%

Visibility6.2 mi

Dew point58°

Mon, 1290° / 64°

90 °

Alda, Monday, 12 October

Clear. High 90°, low 64°.

Pressure29.91 inHg

Wind10.1 mph SW

Humidity41%

Visibility6.2 mi

Dew point60°

Tue, 1390° / 71°

90 °

Alda, Tuesday, 13 October

Overcast. High 90°, low 71°.

Pressure29.85 inHg

Wind10.8 mph SW

Humidity47%

Visibility—

Dew point64°

Wed, 1477° / 70°

0.52

77 °

Alda, Wednesday, 14 October

Rain. High 77°, low 70°.

Pressure29.97 inHg

Wind6.4 mph W

Humidity91%

Visibility—

Dew point70°

Thu, 1582° / 58°

0.15

82 °

Alda, Thursday, 15 October

Light rain. High 82°, low 58°.

Pressure29.97 inHg

Wind11.2 mph E

Humidity61%

Visibility—

Dew point56°

Fri, 1679° / 50°

0.06

79 °

Alda, Friday, 16 October

Light rain. High 79°, low 50°.

Pressure30.03 inHg

Wind23.4 mph NW

Humidity28%

Visibility—

Dew point32°

Sat, 1752° / 39°

52 °

Alda, Saturday, 17 October

Clear. High 52°, low 39°.

Pressure30.42 inHg

Wind19.9 mph NW

Humidity32%

Visibility—

Dew point21°

Sun, 1860° / 34°

60 °

Alda, Sunday, 18 October

Clear. High 60°, low 34°.

Pressure30.36 inHg

Wind7.8 mph S

Humidity25%

Visibility—

Dew point18°

Mon, 1969° / 42°

69 °

Alda, Monday, 19 October

Overcast. High 69°, low 42°.

Pressure30.27 inHg

Wind10.3 mph SW

Humidity19%

Visibility—

Dew point20°

Tue, 2074° / 46°

74 °

Alda, Tuesday, 20 October

Clear. High 74°, low 46°.

Pressure30.33 inHg

Wind8.3 mph SE

Humidity21%

Visibility—

Dew point27°

Wed, 2177° / 53°

77 °

Alda, Wednesday, 21 October

Overcast. High 77°, low 53°.

Pressure30.27 inHg

Wind12.1 mph S

Humidity24%

Visibility—

Dew point33°

Thu, 2277° / 53°

0.02

77 °

Alda, Thursday, 22 October

Light rain. High 77°, low 53°.

Pressure30.03 inHg

Wind15.5 mph SW

Humidity32%

Visibility—

Dew point42°

Fri, 2363° / 46°

0.03

63 °

Alda, Friday, 23 October

Light rain. High 63°, low 46°.

Pressure30.09 inHg

Wind17.3 mph NW

Humidity38%

Visibility—

Dew point32°

Sat, 2452° / 36°

52 °

Alda, Saturday, 24 October

Clear. High 52°, low 36°.

Pressure30.21 inHg

Wind14.2 mph NW

Humidity37%

Visibility—

Dew point24°

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 Alda, 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 Alda, 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.