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As of 00:24 CST

Weather in Mason City, IL

40°Current weather

Mason City, Thursday, 12 November, 00:24

Overcast. Feels like 37°. High 49°, low 34°.

Pressure29.88 inHg
Wind3.9 mph NW
Humidity100%
Visibility6.2 mi
Dew point40°
Fri, 1345° / 34°0Overcast
45 °Overcast

Mason City, Friday, 13 November

Overcast. High 45°, low 34°.

Pressure30.09 inHg
Wind12.4 mph N
Humidity61%
Visibility6.2 mi
Dew point24°
Sat, 1445° / 29°0Clear
45 °Clear

Mason City, Saturday, 14 November

Clear. High 45°, low 29°.

Pressure30.33 inHg
Wind5 mph NW
Humidity57%
Visibility6.2 mi
Dew point24°
Sun, 1548° / 27°0Partly cloudy
48 °Partly cloudy

Mason City, Sunday, 15 November

Partly cloudy. High 48°, low 27°.

Pressure30.45 inHg
Wind1.7 mph NW
Humidity55%
Visibility6.2 mi
Dew point28°
Mon, 1654° / 30°0Clear
54 °Clear

Mason City, Monday, 16 November

Clear. High 54°, low 30°.

Pressure30.47 inHg
Wind7 mph SW
Humidity45%
Visibility—
Dew point29°
Tue, 1756° / 35°0Clear
56 °Clear

Mason City, Tuesday, 17 November

Clear. High 56°, low 35°.

Pressure30.42 inHg
Wind8.5 mph S
Humidity46%
Visibility—
Dew point31°
Wed, 1858° / 36°0Clear
58 °Clear

Mason City, Wednesday, 18 November

Clear. High 58°, low 36°.

Pressure30.33 inHg
Wind11.7 mph S
Humidity33%
Visibility—
Dew point24°
Thu, 1959° / 40°0Overcast
59 °Overcast

Mason City, Thursday, 19 November

Overcast. High 59°, low 40°.

Pressure30.24 inHg
Wind12.1 mph S
Humidity35%
Visibility—
Dew point28°
Fri, 2064° / 46°0Overcast
64 °Overcast

Mason City, Friday, 20 November

Overcast. High 64°, low 46°.

Pressure30.09 inHg
Wind12.6 mph SW
Humidity52%
Visibility—
Dew point42°
Sat, 2156° / 48°0Overcast
56 °Overcast

Mason City, Saturday, 21 November

Overcast. High 56°, low 48°.

Pressure30.15 inHg
Wind7.2 mph SE
Humidity72%
Visibility—
Dew point44°
Sun, 2267° / 47°0.02Light rain
67 °Light rain

Mason City, Sunday, 22 November

Light rain. High 67°, low 47°.

Pressure29.77 inHg
Wind16.9 mph S
Humidity55%
Visibility—
Dew point44°
Mon, 2347° / 43°0Overcast
47 °Overcast

Mason City, Monday, 23 November

Overcast. High 47°, low 43°.

Pressure30.00 inHg
Wind9.3 mph NW
Humidity60%
Visibility—
Dew point33°
Tue, 2443° / 33°1.23Snow
43 °Snow

Mason City, Tuesday, 24 November

Snow. High 43°, low 33°.

Pressure29.83 inHg
Wind17.2 mph N
Humidity97%
Visibility—
Dew point35°
Wed, 2537° / 27°0Partly cloudy
37 °Partly cloudy

Mason City, Wednesday, 25 November

Partly cloudy. High 37°, low 27°.

Pressure30.15 inHg
Wind14.5 mph NW
Humidity71%
Visibility—
Dew point26°
Thu, 2636° / 26°0Partly cloudy
36 °Partly cloudy

Mason City, Thursday, 26 November

Partly cloudy. High 36°, low 26°.

Pressure30.53 inHg
Wind9.4 mph NW
Humidity49%
Visibility—
Dew point17°
Fri, 2731° / 26°0Overcast
31 °Overcast

Mason City, Friday, 27 November

Overcast. High 31°, low 26°.

Pressure30.56 inHg
Wind5.5 mph W
Humidity63%
Visibility—
Dew point19°

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.