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As of 05:40 CDT

Weather in Arno, MO

60°Current weather

Arno, Friday, 9 October, 05:40

Clear. Feels like 60°. High 89°, low 60°.

Pressure30.09 inHg
Wind4.1 mph SE
Humidity74%
Visibility6.2 mi
Dew point52°
Sat, 1087° / 56°0Overcast
87 °Overcast

Arno, Saturday, 10 October

Overcast. High 87°, low 56°.

Pressure30.03 inHg
Wind4.8 mph S
Humidity38%
Visibility6.2 mi
Dew point52°
Sun, 1189° / 62°0Clear
89 °Clear

Arno, Sunday, 11 October

Clear. High 89°, low 62°.

Pressure29.94 inHg
Wind9.1 mph SW
Humidity33%
Visibility6.2 mi
Dew point53°
Mon, 1289° / 67°0Clear
89 °Clear

Arno, Monday, 12 October

Clear. High 89°, low 67°.

Pressure29.94 inHg
Wind12.3 mph SW
Humidity32%
Visibility6.2 mi
Dew point52°
Tue, 1391° / 69°0Clear
91 °Clear

Arno, Tuesday, 13 October

Clear. High 91°, low 69°.

Pressure29.88 inHg
Wind10.5 mph SW
Humidity47%
Visibility—
Dew point64°
Wed, 1486° / 73°0.21Rain
86 °Rain

Arno, Wednesday, 14 October

Rain. High 86°, low 73°.

Pressure29.85 inHg
Wind13.5 mph S
Humidity80%
Visibility—
Dew point73°
Thu, 1589° / 67°0.05Light rain
89 °Light rain

Arno, Thursday, 15 October

Light rain. High 89°, low 67°.

Pressure29.83 inHg
Wind17.5 mph SW
Humidity41%
Visibility—
Dew point59°
Fri, 1659° / 50°0Overcast
59 °Overcast

Arno, Friday, 16 October

Overcast. High 59°, low 50°.

Pressure30.27 inHg
Wind13.7 mph NW
Humidity28%
Visibility—
Dew point25°
Sat, 1756° / 38°0Clear
56 °Clear

Arno, Saturday, 17 October

Clear. High 56°, low 38°.

Pressure30.36 inHg
Wind12.2 mph N
Humidity29%
Visibility—
Dew point22°
Sun, 1864° / 34°0Clear
64 °Clear

Arno, Sunday, 18 October

Clear. High 64°, low 34°.

Pressure30.30 inHg
Wind5.3 mph NE
Humidity28%
Visibility—
Dew point24°
Mon, 1969° / 39°0Clear
69 °Clear

Arno, Monday, 19 October

Clear. High 69°, low 39°.

Pressure30.27 inHg
Wind5.9 mph SE
Humidity25%
Visibility—
Dew point26°
Tue, 2071° / 43°0Clear
71 °Clear

Arno, Tuesday, 20 October

Clear. High 71°, low 43°.

Pressure30.27 inHg
Wind6 mph SE
Humidity26%
Visibility—
Dew point29°
Wed, 2174° / 45°0Clear
74 °Clear

Arno, Wednesday, 21 October

Clear. High 74°, low 45°.

Pressure30.21 inHg
Wind5.5 mph SE
Humidity25%
Visibility—
Dew point31°
Thu, 2276° / 48°0Clear
76 °Clear

Arno, Thursday, 22 October

Clear. High 76°, low 48°.

Pressure30.18 inHg
Wind5.6 mph NE
Humidity23%
Visibility—
Dew point31°
Fri, 2376° / 49°0Clear
76 °Clear

Arno, Friday, 23 October

Clear. High 76°, low 49°.

Pressure30.15 inHg
Wind7 mph NE
Humidity24%
Visibility—
Dew point33°
Sat, 2476° / 49°0Clear
76 °Clear

Arno, Saturday, 24 October

Clear. High 76°, low 49°.

Pressure30.03 inHg
Wind5.1 mph NE
Humidity26%
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.