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As of 02:24 CDT

Weather in Arno, MO

64°Current weather

Arno, Friday, 9 October, 02:24

Clear. Feels like 64°. High 88°, low 59°.

Pressure30.06 inHg
Wind4 mph E
Humidity75%
Visibility6.2 mi
Dew point56°
Sat, 1083° / 56°0Overcast
83 °Overcast

Arno, Saturday, 10 October

Overcast. High 83°, low 56°.

Pressure30.03 inHg
Wind4.1 mph S
Humidity44%
Visibility6.2 mi
Dew point53°
Sun, 1188° / 58°0Clear
88 °Clear

Arno, Sunday, 11 October

Clear. High 88°, low 58°.

Pressure29.97 inHg
Wind5.7 mph SW
Humidity40%
Visibility6.2 mi
Dew point56°
Mon, 1289° / 66°0Clear
89 °Clear

Arno, Monday, 12 October

Clear. High 89°, low 66°.

Pressure29.97 inHg
Wind13.1 mph SW
Humidity35%
Visibility6.2 mi
Dew point53°
Tue, 1390° / 70°0.09Light rain
90 °Light rain

Arno, Tuesday, 13 October

Light rain. High 90°, low 70°.

Pressure29.88 inHg
Wind9.7 mph SW
Humidity51%
Visibility—
Dew point66°
Wed, 1480° / 70°0.61Rain
80 °Rain

Arno, Wednesday, 14 October

Rain. High 80°, low 70°.

Pressure29.94 inHg
Wind6.8 mph S
Humidity82%
Visibility—
Dew point71°
Thu, 1589° / 72°0.06Light rain
89 °Light rain

Arno, Thursday, 15 October

Light rain. High 89°, low 72°.

Pressure29.88 inHg
Wind14.4 mph SW
Humidity39%
Visibility—
Dew point58°
Fri, 1673° / 51°0.31Rain
73 °Rain

Arno, Friday, 16 October

Rain. High 73°, low 51°.

Pressure30.12 inHg
Wind14.9 mph N
Humidity70%
Visibility—
Dew point57°
Sat, 1760° / 47°0.09Light rain
60 °Light rain

Arno, Saturday, 17 October

Light rain. High 60°, low 47°.

Pressure30.42 inHg
Wind14.6 mph NE
Humidity36%
Visibility—
Dew point30°
Sun, 1863° / 42°0Overcast
63 °Overcast

Arno, Sunday, 18 October

Overcast. High 63°, low 42°.

Pressure30.39 inHg
Wind9.4 mph NE
Humidity27%
Visibility—
Dew point24°
Mon, 1956° / 48°0Overcast
56 °Overcast

Arno, Monday, 19 October

Overcast. High 56°, low 48°.

Pressure30.39 inHg
Wind6.7 mph E
Humidity36%
Visibility—
Dew point28°
Tue, 2054° / 49°0.1Light rain
54 °Light rain

Arno, Tuesday, 20 October

Light rain. High 54°, low 49°.

Pressure30.30 inHg
Wind5.3 mph NE
Humidity85%
Visibility—
Dew point47°
Wed, 2166° / 56°0.15Light rain
66 °Light rain

Arno, Wednesday, 21 October

Light rain. High 66°, low 56°.

Pressure30.21 inHg
Wind5.5 mph S
Humidity95%
Visibility—
Dew point57°
Thu, 2263° / 58°0.47Rain
63 °Rain

Arno, Thursday, 22 October

Rain. High 63°, low 58°.

Pressure30.15 inHg
Wind5.3 mph N
Humidity97%
Visibility—
Dew point60°
Fri, 2365° / 50°0Clear
65 °Clear

Arno, Friday, 23 October

Clear. High 65°, low 50°.

Pressure30.27 inHg
Wind11.3 mph N
Humidity48%
Visibility—
Dew point43°
Sat, 2465° / 43°0Clear
65 °Clear

Arno, Saturday, 24 October

Clear. High 65°, low 43°.

Pressure30.24 inHg
Wind6 mph S
Humidity32%
Visibility—
Dew point32°

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.