As of 03:15 CST

Weather in Mason City, IL

32°

Mason City, Saturday, 7 November, 03:15

Clear. Feels like 29°. High 51°, low 31°.

Pressure30.21 inHg

Wind3.4 mph NW

Humidity94%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Sun, 0860° / 37°

60 °

Mason City, Sunday, 8 November

Clear. High 60°, low 37°.

Pressure30.09 inHg

Wind9.4 mph W

Humidity60%

Visibility6.2 mi

Dew point45°

Mon, 0963° / 39°

63 °

Mason City, Monday, 9 November

Clear. High 63°, low 39°.

Pressure30.18 inHg

Wind4 mph SW

Humidity49%

Visibility6.2 mi

Dew point41°

Tue, 1065° / 48°

65 °

Mason City, Tuesday, 10 November

Clear. High 65°, low 48°.

Pressure30.06 inHg

Wind3.9 mph W

Humidity65%

Visibility6.2 mi

Dew point51°

Wed, 1159° / 46°

0.06

59 °

Mason City, Wednesday, 11 November

Light rain. High 59°, low 46°.

Pressure29.80 inHg

Wind12 mph NW

Humidity86%

Visibility—

Dew point53°

Thu, 1249° / 40°

0.02

49 °

Mason City, Thursday, 12 November

Snow. High 49°, low 40°.

Pressure29.97 inHg

Wind16.2 mph N

Humidity64%

Visibility—

Dew point36°

Fri, 1342° / 32°

0.09

42 °

Mason City, Friday, 13 November

Snow. High 42°, low 32°.

Pressure30.09 inHg

Wind16.1 mph N

Humidity57%

Visibility—

Dew point26°

Sat, 1448° / 28°

48 °

Mason City, Saturday, 14 November

Clear. High 48°, low 28°.

Pressure30.15 inHg

Wind8.5 mph W

Humidity39%

Visibility—

Dew point19°

Sun, 1561° / 38°

61 °

Mason City, Sunday, 15 November

Clear. High 61°, low 38°.

Pressure30.06 inHg

Wind8.5 mph SW

Humidity51%

Visibility—

Dew point36°

Mon, 1665° / 48°

65 °

Mason City, Monday, 16 November

Overcast. High 65°, low 48°.

Pressure30.12 inHg

Wind10.3 mph SW

Humidity55%

Visibility—

Dew point46°

Tue, 1760° / 48°

0.01

60 °

Mason City, Tuesday, 17 November

Light rain. High 60°, low 48°.

Pressure30.15 inHg

Wind14.1 mph S

Humidity66%

Visibility—

Dew point46°

Wed, 1855° / 54°

0.81

55 °

Mason City, Wednesday, 18 November

Heavy rain. High 55°, low 54°.

Pressure30.03 inHg

Wind11.1 mph N

Humidity98%

Visibility—

Dew point54°

Thu, 1958° / 43°

58 °

Mason City, Thursday, 19 November

Clear. High 58°, low 43°.

Pressure30.33 inHg

Wind10.3 mph E

Humidity52%

Visibility—

Dew point38°

Fri, 2059° / 47°

59 °

Mason City, Friday, 20 November

Overcast. High 59°, low 47°.

Pressure30.30 inHg

Wind7.9 mph W

Humidity63%

Visibility—

Dew point44°

Sat, 2155° / 42°

55 °

Mason City, Saturday, 21 November

Overcast. High 55°, low 42°.

Pressure30.47 inHg

Wind10.3 mph NW

Humidity38%

Visibility—

Dew point27°

Sun, 2257° / 38°

57 °

Mason City, Sunday, 22 November

Clear. High 57°, low 38°.

Pressure30.39 inHg

Wind9.5 mph W

Humidity35%

Visibility—

Dew point25°

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.