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As of 15:02 CDT

Weather in Mason City, IL

64°Current weather

Mason City, Saturday, 31 October, 15:02

Overcast. Feels like 63°. High 64°, low 55°.

Pressure30.24 inHg
Wind3 mph E
Humidity62%
Visibility6.2 mi
Dew point50°
Sun, 0167° / 55°0Overcast
67 °Overcast

Mason City, Sunday, 1 November

Overcast. High 67°, low 55°.

Pressure30.30 inHg
Wind8.6 mph SE
Humidity68%
Visibility6.2 mi
Dew point53°
Mon, 0265° / 56°0Light rain
65 °Light rain

Mason City, Monday, 2 November

Light rain. High 65°, low 56°.

Pressure30.06 inHg
Wind13.1 mph S
Humidity74%
Visibility6.2 mi
Dew point55°
Tue, 0371° / 65°0.55Rain
71 °Rain

Mason City, Tuesday, 3 November

Rain. High 71°, low 65°.

Pressure29.85 inHg
Wind19.8 mph S
Humidity76%
Visibility6.2 mi
Dew point62°
Wed, 0465° / 51°0.65Rain
65 °Rain

Mason City, Wednesday, 4 November

Rain. High 65°, low 51°.

Pressure29.68 inHg
Wind10.1 mph SW
Humidity78%
Visibility6.2 mi
Dew point57°
Thu, 0559° / 51°0Overcast
59 °Overcast

Mason City, Thursday, 5 November

Overcast. High 59°, low 51°.

Pressure29.80 inHg
Wind11.9 mph W
Humidity72%
Visibility—
Dew point49°
Fri, 0658° / 51°0.01Light rain
58 °Light rain

Mason City, Friday, 6 November

Light rain. High 58°, low 51°.

Pressure29.91 inHg
Wind10.8 mph N
Humidity61%
Visibility—
Dew point43°
Sat, 0758° / 45°0Overcast
58 °Overcast

Mason City, Saturday, 7 November

Overcast. High 58°, low 45°.

Pressure29.91 inHg
Wind6.8 mph NE
Humidity50%
Visibility—
Dew point37°
Sun, 0858° / 46°0Overcast
58 °Overcast

Mason City, Sunday, 8 November

Overcast. High 58°, low 46°.

Pressure29.94 inHg
Wind13.6 mph N
Humidity47%
Visibility—
Dew point36°
Mon, 0956° / 51°0Overcast
56 °Overcast

Mason City, Monday, 9 November

Overcast. High 56°, low 51°.

Pressure30.03 inHg
Wind11.8 mph N
Humidity68%
Visibility—
Dew point45°
Tue, 1063° / 45°0Clear
63 °Clear

Mason City, Tuesday, 10 November

Clear. High 63°, low 45°.

Pressure30.12 inHg
Wind5.7 mph SW
Humidity55%
Visibility—
Dew point42°
Wed, 1158° / 47°0.01Light rain
58 °Light rain

Mason City, Wednesday, 11 November

Light rain. High 58°, low 47°.

Pressure29.91 inHg
Wind14.3 mph NW
Humidity55%
Visibility—
Dew point41°
Thu, 1254° / 43°0.01Light rain
54 °Light rain

Mason City, Thursday, 12 November

Light rain. High 54°, low 43°.

Pressure30.09 inHg
Wind15.9 mph N
Humidity62%
Visibility—
Dew point40°
Fri, 1358° / 39°0Mostly clear
58 °Mostly clear

Mason City, Friday, 13 November

Mostly clear. High 58°, low 39°.

Pressure30.12 inHg
Wind9.1 mph SW
Humidity39%
Visibility—
Dew point29°
Sat, 1463° / 45°0Mostly clear
63 °Mostly clear

Mason City, Saturday, 14 November

Mostly clear. High 63°, low 45°.

Pressure30.00 inHg
Wind15.1 mph NW
Humidity29%
Visibility—
Dew point27°
Sun, 1553° / 42°0Overcast
53 °Overcast

Mason City, Sunday, 15 November

Overcast. High 53°, low 42°.

Pressure30.12 inHg
Wind8.4 mph N
Humidity32%
Visibility—
Dew point22°

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 Mason City, 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 Mason City, 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.