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As of 22:33 CST

Weather in Mason City, IL

52°Current weather

Mason City, Thursday, 5 November, 22:33

Overcast. Feels like 51°. High 56°, low 48°.

Pressure30.00 inHg
Wind8 mph N
Humidity100%
Visibility6.2 mi
Dew point52°
Fri, 0651° / 36°0Mostly clear
51 °Mostly clear

Mason City, Friday, 6 November

Mostly clear. High 51°, low 36°.

Pressure30.21 inHg
Wind9.4 mph N
Humidity49%
Visibility6.2 mi
Dew point28°
Sat, 0752° / 34°0Overcast
52 °Overcast

Mason City, Saturday, 7 November

Overcast. High 52°, low 34°.

Pressure30.27 inHg
Wind5.3 mph W
Humidity49%
Visibility6.2 mi
Dew point31°
Sun, 0862° / 40°0Partly cloudy
62 °Partly cloudy

Mason City, Sunday, 8 November

Partly cloudy. High 62°, low 40°.

Pressure30.12 inHg
Wind9.4 mph W
Humidity60%
Visibility6.2 mi
Dew point46°
Mon, 0965° / 37°0Clear
65 °Clear

Mason City, Monday, 9 November

Clear. High 65°, low 37°.

Pressure30.15 inHg
Wind7.1 mph SW
Humidity52%
Visibility6.2 mi
Dew point44°
Tue, 1064° / 46°0Clear
64 °Clear

Mason City, Tuesday, 10 November

Clear. High 64°, low 46°.

Pressure30.06 inHg
Wind8.4 mph SW
Humidity62%
Visibility—
Dew point47°
Wed, 1159° / 42°0Partly cloudy
59 °Partly cloudy

Mason City, Wednesday, 11 November

Partly cloudy. High 59°, low 42°.

Pressure30.03 inHg
Wind6.4 mph N
Humidity54%
Visibility—
Dew point40°
Thu, 1249° / 36°0Overcast
49 °Overcast

Mason City, Thursday, 12 November

Overcast. High 49°, low 36°.

Pressure30.09 inHg
Wind8.9 mph N
Humidity50%
Visibility—
Dew point28°
Fri, 1346° / 35°0Overcast
46 °Overcast

Mason City, Friday, 13 November

Overcast. High 46°, low 35°.

Pressure30.03 inHg
Wind11.6 mph N
Humidity42%
Visibility—
Dew point23°
Sat, 1445° / 29°0Clear
45 °Clear

Mason City, Saturday, 14 November

Clear. High 45°, low 29°.

Pressure30.30 inHg
Wind6.8 mph N
Humidity48%
Visibility—
Dew point23°
Sun, 1553° / 32°0Clear
53 °Clear

Mason City, Sunday, 15 November

Clear. High 53°, low 32°.

Pressure30.36 inHg
Wind8.3 mph S
Humidity35%
Visibility—
Dew point21°
Mon, 1665° / 40°0Clear
65 °Clear

Mason City, Monday, 16 November

Clear. High 65°, low 40°.

Pressure30.36 inHg
Wind13.7 mph SW
Humidity45%
Visibility—
Dew point37°
Tue, 1762° / 46°0Overcast
62 °Overcast

Mason City, Tuesday, 17 November

Overcast. High 62°, low 46°.

Pressure30.30 inHg
Wind14.5 mph S
Humidity35%
Visibility—
Dew point32°
Wed, 1861° / 49°0Overcast
61 °Overcast

Mason City, Wednesday, 18 November

Overcast. High 61°, low 49°.

Pressure30.06 inHg
Wind16.1 mph SW
Humidity46%
Visibility—
Dew point36°
Thu, 1953° / 43°0Overcast
53 °Overcast

Mason City, Thursday, 19 November

Overcast. High 53°, low 43°.

Pressure30.24 inHg
Wind8.7 mph NW
Humidity55%
Visibility—
Dew point35°
Fri, 2052° / 45°0.39Rain
52 °Rain

Mason City, Friday, 20 November

Rain. High 52°, low 45°.

Pressure29.94 inHg
Wind8.9 mph SE
Humidity96%
Visibility—
Dew point51°

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.