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As of 00:49 CDT

Weather in New Castle, MO

77°Current weather

New Castle, Sunday, 9 August, 00:49

Partly cloudy. Feels like 78°. High 94°, low 77°.

Pressure29.97 inHg
Wind8.1 mph SE
Humidity88%
Visibility6.2 mi
Dew point73°
Mon, 10102° / 78°0Mostly clear
102 °Mostly clear

New Castle, Monday, 10 August

Mostly clear. High 102°, low 78°.

Pressure29.88 inHg
Wind17.5 mph SW
Humidity40%
Visibility6.2 mi
Dew point67°
Tue, 11105° / 82°0Partly cloudy
105 °Partly cloudy

New Castle, Tuesday, 11 August

Partly cloudy. High 105°, low 82°.

Pressure29.80 inHg
Wind19 mph SW
Humidity34%
Visibility6.2 mi
Dew point65°
Wed, 1294° / 71°0.1Light rain
94 °Light rain

New Castle, Wednesday, 12 August

Light rain. High 94°, low 71°.

Pressure29.85 inHg
Wind4.6 mph W
Humidity54%
Visibility6.2 mi
Dew point68°
Thu, 1393° / 71°0.09Light rain
93 °Light rain

New Castle, Thursday, 13 August

Light rain. High 93°, low 71°.

Pressure29.77 inHg
Wind18.2 mph NE
Humidity42%
Visibility—
Dew point63°
Fri, 1481° / 71°0.08Light rain
81 °Light rain

New Castle, Friday, 14 August

Light rain. High 81°, low 71°.

Pressure29.97 inHg
Wind15.8 mph E
Humidity69%
Visibility—
Dew point69°
Sat, 1595° / 71°0.01Light rain
95 °Light rain

New Castle, Saturday, 15 August

Light rain. High 95°, low 71°.

Pressure30.00 inHg
Wind12.5 mph E
Humidity33%
Visibility—
Dew point58°
Sun, 1690° / 69°0.06Light rain
90 °Light rain

New Castle, Sunday, 16 August

Light rain. High 90°, low 69°.

Pressure30.06 inHg
Wind12.1 mph E
Humidity62%
Visibility—
Dew point68°
Mon, 1789° / 70°0.1Light rain
89 °Light rain

New Castle, Monday, 17 August

Light rain. High 89°, low 70°.

Pressure30.00 inHg
Wind8.7 mph NE
Humidity52%
Visibility—
Dew point67°
Tue, 1893° / 70°0.36Rain
93 °Rain

New Castle, Tuesday, 18 August

Rain. High 93°, low 70°.

Pressure29.94 inHg
Wind11.3 mph N
Humidity56%
Visibility—
Dew point66°
Wed, 1993° / 72°0Overcast
93 °Overcast

New Castle, Wednesday, 19 August

Overcast. High 93°, low 72°.

Pressure29.88 inHg
Wind18.2 mph NE
Humidity49%
Visibility—
Dew point66°
Thu, 2082° / 64°0Clear
82 °Clear

New Castle, Thursday, 20 August

Clear. High 82°, low 64°.

Pressure29.97 inHg
Wind18.8 mph NE
Humidity39%
Visibility—
Dew point53°
Fri, 2182° / 62°0.34Rain
82 °Rain

New Castle, Friday, 21 August

Rain. High 82°, low 62°.

Pressure29.94 inHg
Wind17 mph E
Humidity61%
Visibility—
Dew point60°
Sat, 2286° / 65°0.02Light rain
86 °Light rain

New Castle, Saturday, 22 August

Light rain. High 86°, low 65°.

Pressure29.83 inHg
Wind12 mph E
Humidity53%
Visibility—
Dew point64°
Sun, 2397° / 69°0.02Light rain
97 °Light rain

New Castle, Sunday, 23 August

Light rain. High 97°, low 69°.

Pressure29.91 inHg
Wind10.5 mph SE
Humidity35%
Visibility—
Dew point59°
Mon, 2479° / 73°0.04Light rain
79 °Light rain

New Castle, Monday, 24 August

Light rain. High 79°, low 73°.

Pressure29.97 inHg
Wind12.3 mph SW
Humidity66%
Visibility—
Dew point66°

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 New Castle, 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 New Castle, 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.