As of 12:33 CDT

Weather in Armstrong, IL

78°

Armstrong, Thursday, 8 October, 12:33

Clear. Feels like 77°. High 78°, low 49°.

Pressure30.09 inHg

Wind5 mph W

Humidity35%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Fri, 0980° / 50°

80 °

Armstrong, Friday, 9 October

Partly cloudy. High 80°, low 50°.

Pressure30.15 inHg

Wind10 mph S

Humidity37%

Visibility6.2 mi

Dew point49°

Sat, 1082° / 58°

82 °

Armstrong, Saturday, 10 October

Overcast. High 82°, low 58°.

Pressure30.12 inHg

Wind8 mph SE

Humidity41%

Visibility6.2 mi

Dew point51°

Sun, 1172° / 60°

72 °

Armstrong, Sunday, 11 October

Overcast. High 72°, low 60°.

Pressure29.94 inHg

Wind5.7 mph NE

Humidity67%

Visibility6.2 mi

Dew point55°

Mon, 1287° / 57°

87 °

Armstrong, Monday, 12 October

Clear. High 87°, low 57°.

Pressure29.88 inHg

Wind9.8 mph SW

Humidity47%

Visibility6.2 mi

Dew point58°

Tue, 1385° / 63°

85 °

Armstrong, Tuesday, 13 October

Clear. High 85°, low 63°.

Pressure29.83 inHg

Wind11.6 mph NE

Humidity43%

Visibility—

Dew point58°

Wed, 1471° / 54°

0.01

71 °

Armstrong, Wednesday, 14 October

Light rain. High 71°, low 54°.

Pressure30.00 inHg

Wind14.2 mph SE

Humidity65%

Visibility—

Dew point48°

Thu, 1593° / 70°

0.02

93 °

Armstrong, Thursday, 15 October

Light rain. High 93°, low 70°.

Pressure29.88 inHg

Wind18.9 mph SW

Humidity40%

Visibility—

Dew point61°

Fri, 1673° / 55°

0.22

73 °

Armstrong, Friday, 16 October

Rain. High 73°, low 55°.

Pressure30.21 inHg

Wind12.6 mph N

Humidity63%

Visibility—

Dew point51°

Sat, 1757° / 46°

57 °

Armstrong, Saturday, 17 October

Overcast. High 57°, low 46°.

Pressure30.56 inHg

Wind15.8 mph NE

Humidity45%

Visibility—

Dew point35°

Sun, 1860° / 40°

60 °

Armstrong, Sunday, 18 October

Overcast. High 60°, low 40°.

Pressure30.45 inHg

Wind9.4 mph E

Humidity35%

Visibility—

Dew point28°

Mon, 1967° / 48°

0.02

67 °

Armstrong, Monday, 19 October

Light rain. High 67°, low 48°.

Pressure30.21 inHg

Wind14 mph S

Humidity64%

Visibility—

Dew point52°

Tue, 2076° / 58°

0.01

76 °

Armstrong, Tuesday, 20 October

Light rain. High 76°, low 58°.

Pressure30.15 inHg

Wind11.9 mph S

Humidity56%

Visibility—

Dew point56°

Wed, 2173° / 57°

73 °

Armstrong, Wednesday, 21 October

Clear. High 73°, low 57°.

Pressure30.06 inHg

Wind9.1 mph W

Humidity36%

Visibility—

Dew point42°

Thu, 2270° / 51°

0.15

70 °

Armstrong, Thursday, 22 October

Light rain. High 70°, low 51°.

Pressure29.88 inHg

Wind18 mph SW

Humidity63%

Visibility—

Dew point55°

Fri, 2359° / 43°

59 °

Armstrong, Friday, 23 October

Clear. High 59°, low 43°.

Pressure30.18 inHg

Wind12.4 mph W

Humidity43%

Visibility—

Dew point33°

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 Armstrong, 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 Armstrong, 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.