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As of 03:09 CDT

Weather in Arno, MO

71°Current weather

Arno, Tuesday, 13 October, 03:09

Clear. Feels like 71°. High 92°, low 68°.

Pressure29.94 inHg
Wind6.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point56°
Wed, 1477° / 66°0.69Heavy rain
77 °Heavy rain

Arno, Wednesday, 14 October

Heavy rain. High 77°, low 66°.

Pressure30.06 inHg
Wind7.4 mph SW
Humidity95%
Visibility1.7 mi
Dew point71°
Thu, 1582° / 66°0.18Light rain
82 °Light rain

Arno, Thursday, 15 October

Light rain. High 82°, low 66°.

Pressure30.03 inHg
Wind8.2 mph S
Humidity69%
Visibility6.2 mi
Dew point69°
Fri, 1664° / 50°0.04Light rain
64 °Light rain

Arno, Friday, 16 October

Light rain. High 64°, low 50°.

Pressure30.42 inHg
Wind17.2 mph N
Humidity51%
Visibility6.2 mi
Dew point36°
Sat, 1761° / 43°0Clear
61 °Clear

Arno, Saturday, 17 October

Clear. High 61°, low 43°.

Pressure30.47 inHg
Wind9.2 mph N
Humidity46%
Visibility—
Dew point36°
Sun, 1865° / 44°0Partly cloudy
65 °Partly cloudy

Arno, Sunday, 18 October

Partly cloudy. High 65°, low 44°.

Pressure30.27 inHg
Wind7.7 mph S
Humidity42%
Visibility—
Dew point37°
Mon, 1960° / 52°0Light rain
60 °Light rain

Arno, Monday, 19 October

Light rain. High 60°, low 52°.

Pressure30.21 inHg
Wind4.2 mph SE
Humidity57%
Visibility—
Dew point43°
Tue, 2077° / 60°0.01Light rain
77 °Light rain

Arno, Tuesday, 20 October

Light rain. High 77°, low 60°.

Pressure30.09 inHg
Wind9.3 mph SE
Humidity73%
Visibility—
Dew point59°
Wed, 2180° / 61°0.06Light rain
80 °Light rain

Arno, Wednesday, 21 October

Light rain. High 80°, low 61°.

Pressure30.06 inHg
Wind12.7 mph SE
Humidity62%
Visibility—
Dew point61°
Thu, 2280° / 66°0.02Light rain
80 °Light rain

Arno, Thursday, 22 October

Light rain. High 80°, low 66°.

Pressure29.94 inHg
Wind18.1 mph S
Humidity58%
Visibility—
Dew point62°
Fri, 2370° / 53°0.87Heavy rain
70 °Heavy rain

Arno, Friday, 23 October

Heavy rain. High 70°, low 53°.

Pressure30.15 inHg
Wind12.8 mph SW
Humidity42%
Visibility—
Dew point42°
Sat, 2463° / 49°0Overcast
63 °Overcast

Arno, Saturday, 24 October

Overcast. High 63°, low 49°.

Pressure30.30 inHg
Wind10.6 mph NE
Humidity41%
Visibility—
Dew point37°
Sun, 2563° / 47°0Clear
63 °Clear

Arno, Sunday, 25 October

Clear. High 63°, low 47°.

Pressure30.33 inHg
Wind9.7 mph NE
Humidity41%
Visibility—
Dew point36°
Mon, 2657° / 44°0.1Light rain
57 °Light rain

Arno, Monday, 26 October

Light rain. High 57°, low 44°.

Pressure30.15 inHg
Wind12.6 mph NW
Humidity70%
Visibility—
Dew point46°
Tue, 2769° / 43°0Clear
69 °Clear

Arno, Tuesday, 27 October

Clear. High 69°, low 43°.

Pressure29.88 inHg
Wind13.4 mph NW
Humidity46%
Visibility—
Dew point42°
Wed, 2863° / 49°0Clear
63 °Clear

Arno, Wednesday, 28 October

Clear. High 63°, low 49°.

Pressure29.97 inHg
Wind11.9 mph NW
Humidity31%
Visibility—
Dew point30°

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.