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As of 14:53 CST

Weather in Mason City, IL

67°Current weather

Mason City, Monday, 9 November, 14:53

Clear. Feels like 65°. High 67°, low 36°.

Pressure30.06 inHg
Wind3 mph S
Humidity38%
Visibility6.2 mi
Dew point40°
Tue, 1067° / 43°0Clear
67 °Clear

Mason City, Tuesday, 10 November

Clear. High 67°, low 43°.

Pressure30.09 inHg
Wind2.8 mph NW
Humidity53%
Visibility6.2 mi
Dew point45°
Wed, 1157° / 42°0.21Rain
57 °Rain

Mason City, Wednesday, 11 November

Rain. High 57°, low 42°.

Pressure29.74 inHg
Wind8.2 mph SW
Humidity83%
Visibility6.1 mi
Dew point52°
Thu, 1246° / 39°0Overcast
46 °Overcast

Mason City, Thursday, 12 November

Overcast. High 46°, low 39°.

Pressure30.00 inHg
Wind12.1 mph N
Humidity58%
Visibility6.2 mi
Dew point29°
Fri, 1343° / 35°0Overcast
43 °Overcast

Mason City, Friday, 13 November

Overcast. High 43°, low 35°.

Pressure30.09 inHg
Wind12.7 mph N
Humidity61%
Visibility6.2 mi
Dew point24°
Sat, 1444° / 30°0Clear
44 °Clear

Mason City, Saturday, 14 November

Clear. High 44°, low 30°.

Pressure30.24 inHg
Wind5.9 mph NW
Humidity60%
Visibility—
Dew point29°
Sun, 1550° / 28°0Overcast
50 °Overcast

Mason City, Sunday, 15 November

Overcast. High 50°, low 28°.

Pressure30.27 inHg
Wind6.7 mph E
Humidity46%
Visibility—
Dew point25°
Mon, 1654° / 36°0Overcast
54 °Overcast

Mason City, Monday, 16 November

Overcast. High 54°, low 36°.

Pressure30.36 inHg
Wind7.8 mph SE
Humidity36%
Visibility—
Dew point24°
Tue, 1757° / 38°0Clear
57 °Clear

Mason City, Tuesday, 17 November

Clear. High 57°, low 38°.

Pressure30.42 inHg
Wind7.9 mph SE
Humidity37%
Visibility—
Dew point27°
Wed, 1860° / 40°0Overcast
60 °Overcast

Mason City, Wednesday, 18 November

Overcast. High 60°, low 40°.

Pressure30.36 inHg
Wind11.8 mph S
Humidity36%
Visibility—
Dew point28°
Thu, 1960° / 45°0.08Light rain
60 °Light rain

Mason City, Thursday, 19 November

Light rain. High 60°, low 45°.

Pressure30.18 inHg
Wind16.3 mph S
Humidity43%
Visibility—
Dew point35°
Fri, 2053° / 47°0.73Rain
53 °Rain

Mason City, Friday, 20 November

Rain. High 53°, low 47°.

Pressure30.09 inHg
Wind14.7 mph SE
Humidity89%
Visibility—
Dew point44°
Sat, 2158° / 47°0.82Rain
58 °Rain

Mason City, Saturday, 21 November

Rain. High 58°, low 47°.

Pressure29.74 inHg
Wind23 mph SW
Humidity64%
Visibility—
Dew point43°
Sun, 2251° / 37°0Mostly clear
51 °Mostly clear

Mason City, Sunday, 22 November

Mostly clear. High 51°, low 37°.

Pressure30.27 inHg
Wind9.9 mph NW
Humidity45%
Visibility—
Dew point28°
Mon, 2345° / 34°0Overcast
45 °Overcast

Mason City, Monday, 23 November

Overcast. High 45°, low 34°.

Pressure30.27 inHg
Wind9.6 mph NE
Humidity52%
Visibility—
Dew point27°
Tue, 2450° / 37°0Overcast
50 °Overcast

Mason City, Tuesday, 24 November

Overcast. High 50°, low 37°.

Pressure30.15 inHg
Wind7.3 mph NE
Humidity56%
Visibility—
Dew point32°

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.