As of 07:56 CDT

Weather in Arno, MO

56°

Arno, Sunday, 11 October, 07:56

Clear. Feels like 56°. High 89°, low 56°.

Pressure30.00 inHg

Wind4.1 mph SW

Humidity92%

Visibility6.2 mi

Dew point54°

See detailed hourly forecast

Mon, 1289° / 62°

89 °

Arno, Monday, 12 October

Clear. High 89°, low 62°.

Pressure29.97 inHg

Wind11.9 mph SW

Humidity49%

Visibility6.2 mi

Dew point61°

Tue, 1389° / 65°

89 °

Arno, Tuesday, 13 October

Clear. High 89°, low 65°.

Pressure29.94 inHg

Wind8.6 mph SW

Humidity57%

Visibility6.2 mi

Dew point68°

Wed, 1478° / 72°

0.45

78 °

Arno, Wednesday, 14 October

Rain. High 78°, low 72°.

Pressure30.00 inHg

Wind6.3 mph S

Humidity81%

Visibility2.6 mi

Dew point71°

Thu, 1580° / 70°

0.54

80 °

Arno, Thursday, 15 October

Rain. High 80°, low 70°.

Pressure30.06 inHg

Wind8.9 mph SW

Humidity82%

Visibility—

Dew point71°

Fri, 1672° / 49°

0.16

72 °

Arno, Friday, 16 October

Light rain. High 72°, low 49°.

Pressure30.36 inHg

Wind17.1 mph N

Humidity64%

Visibility—

Dew point52°

Sat, 1746° / 31°

46 °

Arno, Saturday, 17 October

Clear. High 46°, low 31°.

Pressure30.53 inHg

Wind15.3 mph N

Humidity30%

Visibility—

Dew point13°

Sun, 1853° / 27°

53 °

Arno, Sunday, 18 October

Clear. High 53°, low 27°.

Pressure30.53 inHg

Wind5.7 mph S

Humidity25%

Visibility—

Dew point12°

Mon, 1964° / 34°

64 °

Arno, Monday, 19 October

Clear. High 64°, low 34°.

Pressure30.33 inHg

Wind9.1 mph S

Humidity25%

Visibility—

Dew point21°

Tue, 2069° / 41°

69 °

Arno, Tuesday, 20 October

Clear. High 69°, low 41°.

Pressure30.21 inHg

Wind10.1 mph S

Humidity25%

Visibility—

Dew point26°

Wed, 2171° / 49°

71 °

Arno, Wednesday, 21 October

Overcast. High 71°, low 49°.

Pressure30.21 inHg

Wind8.5 mph S

Humidity33%

Visibility—

Dew point37°

Thu, 2269° / 54°

69 °

Arno, Thursday, 22 October

Overcast. High 69°, low 54°.

Pressure30.36 inHg

Wind3.2 mph S

Humidity63%

Visibility—

Dew point50°

Fri, 2376° / 55°

76 °

Arno, Friday, 23 October

Clear. High 76°, low 55°.

Pressure30.27 inHg

Wind9.2 mph S

Humidity42%

Visibility—

Dew point47°

Sat, 2468° / 55°

0.02

68 °

Arno, Saturday, 24 October

Light rain. High 68°, low 55°.

Pressure30.21 inHg

Wind10.4 mph N

Humidity68%

Visibility—

Dew point56°

Sun, 2560° / 44°

60 °

Arno, Sunday, 25 October

Overcast. High 60°, low 44°.

Pressure30.39 inHg

Wind9.7 mph N

Humidity38%

Visibility—

Dew point32°

Mon, 2666° / 42°

66 °

Arno, Monday, 26 October

Overcast. High 66°, low 42°.

Pressure30.21 inHg

Wind10.6 mph NW

Humidity37%

Visibility—

Dew point35°

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 Arno, MO 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 Arno, MO 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.