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As of 06:04 CST

Weather in Mason City, IL

27°Current weather

Mason City, Sunday, 15 November, 06:04

Overcast. Feels like 27°. High 51°, low 27°.

Pressure30.42 inHg
Wind2.3 mph NE
Humidity93%
Visibility—
Dew point26°
Mon, 1655° / 27°0Clear
55 °Clear

Mason City, Monday, 16 November

Clear. High 55°, low 27°.

Pressure30.53 inHg
Wind5.8 mph SW
Humidity46%
Visibility6.2 mi
Dew point33°
Tue, 1757° / 36°0Clear
57 °Clear

Mason City, Tuesday, 17 November

Clear. High 57°, low 36°.

Pressure30.47 inHg
Wind8.1 mph S
Humidity52%
Visibility6.2 mi
Dew point38°
Wed, 1859° / 41°0Overcast
59 °Overcast

Mason City, Wednesday, 18 November

Overcast. High 59°, low 41°.

Pressure30.33 inHg
Wind13 mph S
Humidity49%
Visibility6.2 mi
Dew point39°
Thu, 1965° / 48°0Clear
65 °Clear

Mason City, Thursday, 19 November

Clear. High 65°, low 48°.

Pressure30.24 inHg
Wind13.2 mph SW
Humidity54%
Visibility—
Dew point45°
Fri, 2066° / 43°0Overcast
66 °Overcast

Mason City, Friday, 20 November

Overcast. High 66°, low 43°.

Pressure30.27 inHg
Wind11.2 mph S
Humidity67%
Visibility—
Dew point50°
Sat, 2159° / 50°0.21Rain
59 °Rain

Mason City, Saturday, 21 November

Rain. High 59°, low 50°.

Pressure29.97 inHg
Wind18.5 mph S
Humidity57%
Visibility—
Dew point43°
Sun, 2250° / 40°0Clear
50 °Clear

Mason City, Sunday, 22 November

Clear. High 50°, low 40°.

Pressure30.30 inHg
Wind15.3 mph NW
Humidity53%
Visibility—
Dew point33°
Mon, 2345° / 31°0Clear
45 °Clear

Mason City, Monday, 23 November

Clear. High 45°, low 31°.

Pressure30.53 inHg
Wind9.2 mph NE
Humidity47%
Visibility—
Dew point22°
Tue, 2446° / 30°0Overcast
46 °Overcast

Mason City, Tuesday, 24 November

Overcast. High 46°, low 30°.

Pressure30.50 inHg
Wind7.2 mph SE
Humidity38%
Visibility—
Dew point19°
Wed, 2554° / 33°0Partly cloudy
54 °Partly cloudy

Mason City, Wednesday, 25 November

Partly cloudy. High 54°, low 33°.

Pressure30.39 inHg
Wind8.7 mph S
Humidity37%
Visibility—
Dew point23°
Thu, 2660° / 41°0Clear
60 °Clear

Mason City, Thursday, 26 November

Clear. High 60°, low 41°.

Pressure30.24 inHg
Wind9.6 mph S
Humidity42%
Visibility—
Dew point33°
Fri, 2758° / 44°0Overcast
58 °Overcast

Mason City, Friday, 27 November

Overcast. High 58°, low 44°.

Pressure30.30 inHg
Wind7.2 mph SE
Humidity46%
Visibility—
Dew point35°
Sat, 2861° / 44°0Mostly clear
61 °Mostly clear

Mason City, Saturday, 28 November

Mostly clear. High 61°, low 44°.

Pressure30.36 inHg
Wind4.7 mph NE
Humidity32%
Visibility—
Dew point27°
Sun, 2956° / 45°0Overcast
56 °Overcast

Mason City, Sunday, 29 November

Overcast. High 56°, low 45°.

Pressure30.30 inHg
Wind6.6 mph E
Humidity32%
Visibility—
Dew point25°
Mon, 3051° / 46°0.22Rain
51 °Rain

Mason City, Monday, 30 November

Rain. High 51°, low 46°.

Pressure30.09 inHg
Wind10.2 mph E
Humidity64%
Visibility—
Dew point37°

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.