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As of 12:17 CDT

Weather in Newcastle, IL

69°Current weather

Newcastle, Wednesday, 21 October, 12:17

Clear. Feels like 68°. High 72°, low 45°.

Pressure30.27 inHg
Wind1.9 mph NE
Humidity50%
Visibility6.2 mi
Dew point49°
Thu, 2274° / 46°0Clear
74 °Clear

Newcastle, Thursday, 22 October

Clear. High 74°, low 46°.

Pressure30.27 inHg
Wind3.8 mph NE
Humidity43%
Visibility6.2 mi
Dew point47°
Fri, 2371° / 48°0Clear
71 °Clear

Newcastle, Friday, 23 October

Clear. High 71°, low 48°.

Pressure30.30 inHg
Wind5.2 mph E
Humidity45%
Visibility6.2 mi
Dew point48°
Sat, 2473° / 48°0Partly cloudy
73 °Partly cloudy

Newcastle, Saturday, 24 October

Partly cloudy. High 73°, low 48°.

Pressure30.36 inHg
Wind3.4 mph SE
Humidity46%
Visibility6.2 mi
Dew point48°
Sun, 2574° / 52°0Overcast
74 °Overcast

Newcastle, Sunday, 25 October

Overcast. High 74°, low 52°.

Pressure30.39 inHg
Wind4.2 mph SW
Humidity43%
Visibility6.2 mi
Dew point48°
Mon, 2672° / 52°0Overcast
72 °Overcast

Newcastle, Monday, 26 October

Overcast. High 72°, low 52°.

Pressure30.27 inHg
Wind6.6 mph SW
Humidity42%
Visibility—
Dew point45°
Tue, 2775° / 56°0Overcast
75 °Overcast

Newcastle, Tuesday, 27 October

Overcast. High 75°, low 56°.

Pressure30.24 inHg
Wind4.9 mph S
Humidity37%
Visibility—
Dew point44°
Wed, 2878° / 58°0Clear
78 °Clear

Newcastle, Wednesday, 28 October

Clear. High 78°, low 58°.

Pressure30.15 inHg
Wind11.3 mph SW
Humidity28%
Visibility—
Dew point39°
Thu, 2976° / 59°0Light rain
76 °Light rain

Newcastle, Thursday, 29 October

Light rain. High 76°, low 59°.

Pressure30.15 inHg
Wind9.9 mph SW
Humidity30%
Visibility—
Dew point41°
Fri, 3068° / 56°0Light rain
68 °Light rain

Newcastle, Friday, 30 October

Light rain. High 68°, low 56°.

Pressure30.15 inHg
Wind8.1 mph E
Humidity66%
Visibility—
Dew point55°
Sat, 3181° / 56°0Overcast
81 °Overcast

Newcastle, Saturday, 31 October

Overcast. High 81°, low 56°.

Pressure29.97 inHg
Wind16.6 mph S
Humidity37%
Visibility—
Dew point49°
Sun, 0170° / 61°0.41Rain
70 °Rain

Newcastle, Sunday, 1 November

Rain. High 70°, low 61°.

Pressure29.97 inHg
Wind18.4 mph S
Humidity92%
Visibility—
Dew point59°
Mon, 0264° / 56°0.5Rain
64 °Rain

Newcastle, Monday, 2 November

Rain. High 64°, low 56°.

Pressure29.74 inHg
Wind11.4 mph S
Humidity98%
Visibility—
Dew point62°
Tue, 0357° / 54°0.78Rain
57 °Rain

Newcastle, Tuesday, 3 November

Rain. High 57°, low 54°.

Pressure29.56 inHg
Wind16.4 mph NW
Humidity96%
Visibility—
Dew point55°
Wed, 0454° / 48°0.13Light rain
54 °Light rain

Newcastle, Wednesday, 4 November

Light rain. High 54°, low 48°.

Pressure29.47 inHg
Wind13.7 mph NW
Humidity91%
Visibility—
Dew point50°
Thu, 0560° / 49°0.03Light rain
60 °Light rain

Newcastle, Thursday, 5 November

Light rain. High 60°, low 49°.

Pressure29.71 inHg
Wind14.2 mph SW
Humidity50%
Visibility—
Dew point39°

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 Newcastle, IL 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 Newcastle, IL 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.