As of 01:32 MDT

Weather in Newcastle, UT

43°

Newcastle, Thursday, 15 October, 01:32

Clear. Feels like 41°. High 66°, low 41°.

Pressure30.30 inHg

Wind3.8 mph NE

Humidity85%

Visibility6.2 mi

Dew point39°

See detailed hourly forecast

Fri, 1667° / 44°

67 °

Newcastle, Friday, 16 October

Clear. High 67°, low 44°.

Pressure30.47 inHg

Wind9.4 mph NE

Humidity47%

Visibility6.2 mi

Dew point38°

Sat, 1765° / 41°

65 °

Newcastle, Saturday, 17 October

Clear. High 65°, low 41°.

Pressure30.36 inHg

Wind4 mph NW

Humidity53%

Visibility6.2 mi

Dew point37°

Sun, 1864° / 46°

64 °

Newcastle, Sunday, 18 October

Overcast. High 64°, low 46°.

Pressure30.15 inHg

Wind2.4 mph W

Humidity53%

Visibility6.2 mi

Dew point38°

Mon, 1964° / 47°

0.02

64 °

Newcastle, Monday, 19 October

Light rain. High 64°, low 47°.

Pressure30.06 inHg

Wind9 mph SW

Humidity58%

Visibility—

Dew point43°

Tue, 2061° / 45°

0.14

61 °

Newcastle, Tuesday, 20 October

Rain. High 61°, low 45°.

Pressure29.91 inHg

Wind9.2 mph W

Humidity60%

Visibility—

Dew point45°

Wed, 2155° / 43°

0.75

55 °

Newcastle, Wednesday, 21 October

Rain. High 55°, low 43°.

Pressure29.74 inHg

Wind9.3 mph S

Humidity49%

Visibility—

Dew point35°

Thu, 2257° / 42°

57 °

Newcastle, Thursday, 22 October

Overcast. High 57°, low 42°.

Pressure29.94 inHg

Wind13.8 mph W

Humidity54%

Visibility—

Dew point35°

Fri, 2358° / 43°

58 °

Newcastle, Friday, 23 October

Clear. High 58°, low 43°.

Pressure30.12 inHg

Wind13 mph NW

Humidity40%

Visibility—

Dew point29°

Sat, 2445° / 35°

45 °

Newcastle, Saturday, 24 October

Clear. High 45°, low 35°.

Pressure30.45 inHg

Wind19 mph NE

Humidity35%

Visibility—

Dew point16°

Sun, 2550° / 30°

50 °

Newcastle, Sunday, 25 October

Clear. High 50°, low 30°.

Pressure30.56 inHg

Wind14.2 mph NE

Humidity29%

Visibility—

Dew point12°

Mon, 2656° / 34°

56 °

Newcastle, Monday, 26 October

Partly cloudy. High 56°, low 34°.

Pressure30.24 inHg

Wind13.3 mph NE

Humidity28%

Visibility—

Dew point16°

Tue, 2757° / 38°

57 °

Newcastle, Tuesday, 27 October

Partly cloudy. High 57°, low 38°.

Pressure30.12 inHg

Wind11.8 mph NE

Humidity30%

Visibility—

Dew point19°

Wed, 2864° / 41°

64 °

Newcastle, Wednesday, 28 October

Clear. High 64°, low 41°.

Pressure29.97 inHg

Wind5.2 mph NE

Humidity30%

Visibility—

Dew point24°

Thu, 2966° / 46°

66 °

Newcastle, Thursday, 29 October

Overcast. High 66°, low 46°.

Pressure29.97 inHg

Wind17 mph SW

Humidity28%

Visibility—

Dew point28°

Fri, 3062° / 49°

62 °

Newcastle, Friday, 30 October

Overcast. High 62°, low 49°.

Pressure29.94 inHg

Wind17.8 mph SW

Humidity25%

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, UT 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, UT 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.