As of 14:17 CST

Weather in Newcastle, IL

72°

Newcastle, Wednesday, 11 November, 14:17

Partly cloudy. Feels like 72°. High 72°, low 43°.

Pressure29.74 inHg

Wind14.1 mph SW

Humidity63%

Visibility4.7 mi

Dew point58°

See detailed hourly forecast

Thu, 1259° / 36°

59 °

Newcastle, Thursday, 12 November

Mostly clear. High 59°, low 36°.

Pressure29.91 inHg

Wind13 mph NW

Humidity51%

Visibility6.2 mi

Dew point37°

Fri, 1345° / 34°

45 °

Newcastle, Friday, 13 November

Overcast. High 45°, low 34°.

Pressure30.03 inHg

Wind12.4 mph NW

Humidity58%

Visibility6.2 mi

Dew point30°

Sat, 1448° / 32°

48 °

Newcastle, Saturday, 14 November

Clear. High 48°, low 32°.

Pressure30.30 inHg

Wind4.4 mph NW

Humidity53%

Visibility6.2 mi

Dew point26°

Sun, 1552° / 31°

52 °

Newcastle, Sunday, 15 November

Overcast. High 52°, low 31°.

Pressure30.42 inHg

Wind1.2 mph SE

Humidity46%

Visibility6.2 mi

Dew point28°

Mon, 1653° / 33°

53 °

Newcastle, Monday, 16 November

Partly cloudy. High 53°, low 33°.

Pressure30.47 inHg

Wind6.4 mph E

Humidity49%

Visibility—

Dew point32°

Tue, 1755° / 34°

55 °

Newcastle, Tuesday, 17 November

Clear. High 55°, low 34°.

Pressure30.45 inHg

Wind7.2 mph E

Humidity38%

Visibility—

Dew point26°

Wed, 1859° / 36°

59 °

Newcastle, Wednesday, 18 November

Clear. High 59°, low 36°.

Pressure30.33 inHg

Wind6.6 mph E

Humidity35%

Visibility—

Dew point27°

Thu, 1962° / 38°

62 °

Newcastle, Thursday, 19 November

Clear. High 62°, low 38°.

Pressure30.21 inHg

Wind7.3 mph S

Humidity29%

Visibility—

Dew point26°

Fri, 2060° / 45°

60 °

Newcastle, Friday, 20 November

Overcast. High 60°, low 45°.

Pressure30.12 inHg

Wind8.8 mph S

Humidity51%

Visibility—

Dew point40°

Sat, 2170° / 48°

70 °

Newcastle, Saturday, 21 November

Partly cloudy. High 70°, low 48°.

Pressure30.06 inHg

Wind12.9 mph S

Humidity34%

Visibility—

Dew point36°

Sun, 2258° / 45°

0.81

58 °

Newcastle, Sunday, 22 November

Rain. High 58°, low 45°.

Pressure29.85 inHg

Wind15.4 mph S

Humidity94%

Visibility—

Dew point52°

Mon, 2342° / 32°

42 °

Newcastle, Monday, 23 November

Overcast. High 42°, low 32°.

Pressure30.09 inHg

Wind10.6 mph NW

Humidity51%

Visibility—

Dew point22°

Tue, 2448° / 28°

48 °

Newcastle, Tuesday, 24 November

Clear. High 48°, low 28°.

Pressure30.18 inHg

Wind7.6 mph W

Humidity35%

Visibility—

Dew point18°

Wed, 2543° / 31°

43 °

Newcastle, Wednesday, 25 November

Overcast. High 43°, low 31°.

Pressure30.39 inHg

Wind10.8 mph N

Humidity33%

Visibility—

Dew point14°

Thu, 2631° / 20°

0.01

31 °

Newcastle, Thursday, 26 November

Light snow. High 31°, low 20°.

Pressure30.53 inHg

Wind12.8 mph N

Humidity50%

Visibility—

Dew point14°

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.