As of 10:20 CST

Weather in Newcastle, IL

42°

Newcastle, Saturday, 14 November, 10:20

Clear. Feels like 39°. High 46°, low 30°.

Pressure30.33 inHg

Wind3.8 mph NW

Humidity63%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Sun, 1552° / 29°

52 °

Newcastle, Sunday, 15 November

Partly cloudy. High 52°, low 29°.

Pressure30.45 inHg

Wind2.5 mph NE

Humidity49%

Visibility6.2 mi

Dew point31°

Mon, 1653° / 31°

53 °

Newcastle, Monday, 16 November

Clear. High 53°, low 31°.

Pressure30.53 inHg

Wind2.8 mph E

Humidity52%

Visibility6.2 mi

Dew point36°

Tue, 1758° / 32°

58 °

Newcastle, Tuesday, 17 November

Clear. High 58°, low 32°.

Pressure30.50 inHg

Wind4.3 mph SE

Humidity49%

Visibility6.2 mi

Dew point38°

Wed, 1860° / 38°

60 °

Newcastle, Wednesday, 18 November

Overcast. High 60°, low 38°.

Pressure30.42 inHg

Wind8.3 mph S

Humidity45%

Visibility—

Dew point35°

Thu, 1964° / 43°

64 °

Newcastle, Thursday, 19 November

Clear. High 64°, low 43°.

Pressure30.36 inHg

Wind8.5 mph S

Humidity42%

Visibility—

Dew point37°

Fri, 2070° / 52°

70 °

Newcastle, Friday, 20 November

Overcast. High 70°, low 52°.

Pressure30.24 inHg

Wind8.4 mph S

Humidity49%

Visibility—

Dew point47°

Sat, 2168° / 50°

0.02

68 °

Newcastle, Saturday, 21 November

Light rain. High 68°, low 50°.

Pressure30.09 inHg

Wind15.3 mph S

Humidity36%

Visibility—

Dew point37°

Sun, 2257° / 42°

0.01

57 °

Newcastle, Sunday, 22 November

Light rain. High 57°, low 42°.

Pressure30.21 inHg

Wind14.2 mph W

Humidity42%

Visibility—

Dew point32°

Mon, 2350° / 33°

50 °

Newcastle, Monday, 23 November

Clear. High 50°, low 33°.

Pressure30.33 inHg

Wind9.3 mph N

Humidity33%

Visibility—

Dew point19°

Tue, 2451° / 29°

51 °

Newcastle, Tuesday, 24 November

Partly cloudy. High 51°, low 29°.

Pressure30.33 inHg

Wind6 mph SE

Humidity23%

Visibility—

Dew point10°

Wed, 2558° / 38°

0.11

58 °

Newcastle, Wednesday, 25 November

Light rain. High 58°, low 38°.

Pressure30.15 inHg

Wind10.3 mph S

Humidity31%

Visibility—

Dew point25°

Thu, 2664° / 48°

0.05

64 °

Newcastle, Thursday, 26 November

Light rain. High 64°, low 48°.

Pressure30.06 inHg

Wind13.6 mph S

Humidity56%

Visibility—

Dew point45°

Fri, 2768° / 58°

68 °

Newcastle, Friday, 27 November

Overcast. High 68°, low 58°.

Pressure30.00 inHg

Wind18.7 mph S

Humidity55%

Visibility—

Dew point50°

Sat, 2866° / 44°

0.55

66 °

Newcastle, Saturday, 28 November

Rain. High 66°, low 44°.

Pressure29.97 inHg

Wind24.3 mph S

Humidity83%

Visibility—

Dew point48°

Sun, 2948° / 36°

48 °

Newcastle, Sunday, 29 November

Overcast. High 48°, low 36°.

Pressure30.33 inHg

Wind9.3 mph NW

Humidity43%

Visibility—

Dew point24°

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.