EN
English Español

As of 12:27 CDT

Weather in Calvin, IL

74°Current weather

Calvin, Sunday, 11 October, 12:27

Mostly clear. Feels like 74°. High 77°, low 57°.

Pressure30.00 inHg
Wind1 mph S
Humidity70%
Visibility6.2 mi
Dew point63°
Mon, 1286° / 62°0Clear
86 °Clear

Calvin, Monday, 12 October

Clear. High 86°, low 62°.

Pressure30.00 inHg
Wind9 mph SW
Humidity53%
Visibility6.2 mi
Dew point63°
Tue, 1387° / 66°0Clear
87 °Clear

Calvin, Tuesday, 13 October

Clear. High 87°, low 66°.

Pressure29.97 inHg
Wind10.4 mph SW
Humidity49%
Visibility6.2 mi
Dew point62°
Wed, 1479° / 71°0.1Light rain
79 °Light rain

Calvin, Wednesday, 14 October

Light rain. High 79°, low 71°.

Pressure30.03 inHg
Wind6.9 mph W
Humidity87%
Visibility5.0 mi
Dew point71°
Thu, 1581° / 69°0.16Light rain
81 °Light rain

Calvin, Thursday, 15 October

Light rain. High 81°, low 69°.

Pressure30.06 inHg
Wind7 mph SW
Humidity78%
Visibility6.2 mi
Dew point71°
Fri, 1674° / 55°0.07Light rain
74 °Light rain

Calvin, Friday, 16 October

Light rain. High 74°, low 55°.

Pressure30.24 inHg
Wind18.9 mph NW
Humidity44%
Visibility—
Dew point43°
Sat, 1750° / 36°0Clear
50 °Clear

Calvin, Saturday, 17 October

Clear. High 50°, low 36°.

Pressure30.50 inHg
Wind16.1 mph N
Humidity23%
Visibility—
Dew point10°
Sun, 1856° / 32°0Clear
56 °Clear

Calvin, Sunday, 18 October

Clear. High 56°, low 32°.

Pressure30.59 inHg
Wind9.6 mph S
Humidity25%
Visibility—
Dew point15°
Mon, 1966° / 37°0Clear
66 °Clear

Calvin, Monday, 19 October

Clear. High 66°, low 37°.

Pressure30.47 inHg
Wind12.4 mph SW
Humidity20%
Visibility—
Dew point19°
Tue, 2069° / 43°0Partly cloudy
69 °Partly cloudy

Calvin, Tuesday, 20 October

Partly cloudy. High 69°, low 43°.

Pressure30.36 inHg
Wind7.4 mph S
Humidity23%
Visibility—
Dew point26°
Wed, 2173° / 50°0Overcast
73 °Overcast

Calvin, Wednesday, 21 October

Overcast. High 73°, low 50°.

Pressure30.27 inHg
Wind7.6 mph S
Humidity25%
Visibility—
Dew point31°
Thu, 2275° / 50°0Clear
75 °Clear

Calvin, Thursday, 22 October

Clear. High 75°, low 50°.

Pressure30.24 inHg
Wind6.6 mph SE
Humidity25%
Visibility—
Dew point32°
Fri, 2377° / 54°0Mostly clear
77 °Mostly clear

Calvin, Friday, 23 October

Mostly clear. High 77°, low 54°.

Pressure30.18 inHg
Wind6 mph S
Humidity26%
Visibility—
Dew point35°
Sat, 2481° / 57°0Clear
81 °Clear

Calvin, Saturday, 24 October

Clear. High 81°, low 57°.

Pressure30.12 inHg
Wind6.3 mph NW
Humidity34%
Visibility—
Dew point45°
Sun, 2581° / 62°0.04Light rain
81 °Light rain

Calvin, Sunday, 25 October

Light rain. High 81°, low 62°.

Pressure29.97 inHg
Wind11.9 mph SW
Humidity39%
Visibility—
Dew point51°
Mon, 2663° / 48°0.06Light rain
63 °Light rain

Calvin, Monday, 26 October

Light rain. High 63°, low 48°.

Pressure29.91 inHg
Wind16.7 mph NW
Humidity36%
Visibility—
Dew point30°

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 Calvin, 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 Calvin, 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.