As of 18:36 CDT

Weather in Barnum, IA

55°

Barnum, Wednesday, 14 October, 18:36

Overcast. Feels like 54°. High 57°, low 49°.

Pressure30.12 inHg

Wind5.7 mph N

Humidity71%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Thu, 1557° / 50°

0.7

57 °

Barnum, Thursday, 15 October

Rain. High 57°, low 50°.

Pressure30.03 inHg

Wind11.3 mph NW

Humidity96%

Visibility1.4 mi

Dew point52°

Fri, 1650° / 40°

0.01

50 °

Barnum, Friday, 16 October

Light rain. High 50°, low 40°.

Pressure30.45 inHg

Wind22.7 mph N

Humidity58%

Visibility6.2 mi

Dew point34°

Sat, 1757° / 33°

57 °

Barnum, Saturday, 17 October

Clear. High 57°, low 33°.

Pressure30.53 inHg

Wind11.7 mph SW

Humidity45%

Visibility6.2 mi

Dew point29°

Sun, 1862° / 42°

62 °

Barnum, Sunday, 18 October

Clear. High 62°, low 42°.

Pressure30.30 inHg

Wind14 mph S

Humidity56%

Visibility6.2 mi

Dew point40°

Mon, 1963° / 43°

63 °

Barnum, Monday, 19 October

Clear. High 63°, low 43°.

Pressure30.33 inHg

Wind8.8 mph S

Humidity57%

Visibility—

Dew point43°

Tue, 2067° / 45°

67 °

Barnum, Tuesday, 20 October

Clear. High 67°, low 45°.

Pressure30.24 inHg

Wind12.7 mph S

Humidity47%

Visibility—

Dew point41°

Wed, 2170° / 53°

0.06

70 °

Barnum, Wednesday, 21 October

Light rain. High 70°, low 53°.

Pressure30.03 inHg

Wind16.4 mph S

Humidity69%

Visibility—

Dew point51°

Thu, 2273° / 61°

0.04

73 °

Barnum, Thursday, 22 October

Light rain. High 73°, low 61°.

Pressure29.97 inHg

Wind11.1 mph S

Humidity57%

Visibility—

Dew point54°

Fri, 2368° / 56°

0.26

68 °

Barnum, Friday, 23 October

Rain. High 68°, low 56°.

Pressure29.94 inHg

Wind19.7 mph S

Humidity86%

Visibility—

Dew point57°

Sat, 2468° / 46°

0.3

68 °

Barnum, Saturday, 24 October

Rain. High 68°, low 46°.

Pressure30.06 inHg

Wind21.7 mph NW

Humidity70%

Visibility—

Dew point42°

Sun, 2554° / 41°

54 °

Barnum, Sunday, 25 October

Clear. High 54°, low 41°.

Pressure30.39 inHg

Wind16.1 mph NW

Humidity42%

Visibility—

Dew point29°

Mon, 2659° / 39°

59 °

Barnum, Monday, 26 October

Clear. High 59°, low 39°.

Pressure30.36 inHg

Wind14.2 mph SW

Humidity34%

Visibility—

Dew point26°

Tue, 2761° / 48°

61 °

Barnum, Tuesday, 27 October

Overcast. High 61°, low 48°.

Pressure30.09 inHg

Wind20.6 mph SW

Humidity42%

Visibility—

Dew point35°

Wed, 2858° / 44°

58 °

Barnum, Wednesday, 28 October

Mostly clear. High 58°, low 44°.

Pressure29.91 inHg

Wind14.9 mph SW

Humidity62%

Visibility—

Dew point43°

Thu, 2965° / 46°

65 °

Barnum, Thursday, 29 October

Overcast. High 65°, low 46°.

Pressure30.00 inHg

Wind12.7 mph S

Humidity52%

Visibility—

Dew point42°

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 Barnum, IA 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 Barnum, IA 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.