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As of 09:47 CST

Weather in Mason City, IL

57°Current weather

Mason City, Monday, 2 November, 09:47

Overcast. Feels like 57°. High 66°, low 56°.

Pressure30.09 inHg
Wind8 mph SE
Humidity100%
Visibility6.2 mi
Dew point56°
Tue, 0374° / 65°0.85Heavy rain
74 °Heavy rain

Mason City, Tuesday, 3 November

Heavy rain. High 74°, low 65°.

Pressure29.80 inHg
Wind22.1 mph S
Humidity60%
Visibility6.2 mi
Dew point61°
Wed, 0465° / 52°0.39Heavy rain
65 °Heavy rain

Mason City, Wednesday, 4 November

Heavy rain. High 65°, low 52°.

Pressure29.77 inHg
Wind13.9 mph SW
Humidity62%
Visibility6.2 mi
Dew point46°
Thu, 0561° / 47°0Clear
61 °Clear

Mason City, Thursday, 5 November

Clear. High 61°, low 47°.

Pressure29.80 inHg
Wind13.6 mph SW
Humidity50%
Visibility6.2 mi
Dew point41°
Fri, 0652° / 48°0Overcast
52 °Overcast

Mason City, Friday, 6 November

Overcast. High 52°, low 48°.

Pressure29.94 inHg
Wind10.4 mph NW
Humidity63%
Visibility—
Dew point39°
Sat, 0757° / 47°0Overcast
57 °Overcast

Mason City, Saturday, 7 November

Overcast. High 57°, low 47°.

Pressure30.00 inHg
Wind9.2 mph W
Humidity57%
Visibility—
Dew point41°
Sun, 0849° / 41°0.1Light rain
49 °Light rain

Mason City, Sunday, 8 November

Light rain. High 49°, low 41°.

Pressure29.77 inHg
Wind15 mph N
Humidity82%
Visibility—
Dew point40°
Mon, 0954° / 37°0Overcast
54 °Overcast

Mason City, Monday, 9 November

Overcast. High 54°, low 37°.

Pressure30.03 inHg
Wind9.8 mph W
Humidity50%
Visibility—
Dew point33°
Tue, 1056° / 40°0Clear
56 °Clear

Mason City, Tuesday, 10 November

Clear. High 56°, low 40°.

Pressure30.12 inHg
Wind10.5 mph N
Humidity44%
Visibility—
Dew point31°
Wed, 1151° / 44°0.22Rain
51 °Rain

Mason City, Wednesday, 11 November

Rain. High 51°, low 44°.

Pressure29.97 inHg
Wind10.2 mph S
Humidity88%
Visibility—
Dew point44°
Thu, 1249° / 39°0Overcast
49 °Overcast

Mason City, Thursday, 12 November

Overcast. High 49°, low 39°.

Pressure30.15 inHg
Wind11.3 mph N
Humidity53%
Visibility—
Dew point30°
Fri, 1349° / 34°0Overcast
49 °Overcast

Mason City, Friday, 13 November

Overcast. High 49°, low 34°.

Pressure30.21 inHg
Wind6.6 mph E
Humidity48%
Visibility—
Dew point28°
Sat, 1451° / 35°0Overcast
51 °Overcast

Mason City, Saturday, 14 November

Overcast. High 51°, low 35°.

Pressure30.09 inHg
Wind13.7 mph SE
Humidity43%
Visibility—
Dew point25°
Sun, 1549° / 40°0.62Rain
49 °Rain

Mason City, Sunday, 15 November

Rain. High 49°, low 40°.

Pressure29.85 inHg
Wind17.1 mph NE
Humidity51%
Visibility—
Dew point30°
Mon, 1647° / 43°0.06Light rain
47 °Light rain

Mason City, Monday, 16 November

Light rain. High 47°, low 43°.

Pressure29.91 inHg
Wind13.3 mph NE
Humidity85%
Visibility—
Dew point42°
Tue, 1751° / 42°0Overcast
51 °Overcast

Mason City, Tuesday, 17 November

Overcast. High 51°, low 42°.

Pressure29.94 inHg
Wind13 mph NW
Humidity57%
Visibility—
Dew point35°

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.