EN
English Español

As of 17:14 CDT

Weather in Calvin, IL

75°Current weather

Calvin, Wednesday, 14 October, 17:14

Overcast. Feels like 77°. High 77°, low 69°.

Pressure30.00 inHg
Wind7.5 mph NW
Humidity91%
Visibility6.2 mi
Dew point72°
Thu, 1584° / 69°0.72Heavy rain
84 °Heavy rain

Calvin, Thursday, 15 October

Heavy rain. High 84°, low 69°.

Pressure30.00 inHg
Wind5.8 mph SW
Humidity78%
Visibility6.2 mi
Dew point72°
Fri, 1672° / 52°0.07Light rain
72 °Light rain

Calvin, Friday, 16 October

Light rain. High 72°, low 52°.

Pressure30.12 inHg
Wind15.7 mph NW
Humidity49%
Visibility6.2 mi
Dew point38°
Sat, 1758° / 46°0Clear
58 °Clear

Calvin, Saturday, 17 October

Clear. High 58°, low 46°.

Pressure30.50 inHg
Wind11 mph N
Humidity44%
Visibility6.2 mi
Dew point35°
Sun, 1862° / 40°0Clear
62 °Clear

Calvin, Sunday, 18 October

Clear. High 62°, low 40°.

Pressure30.50 inHg
Wind5.5 mph E
Humidity46%
Visibility6.2 mi
Dew point36°
Mon, 1965° / 41°0Overcast
65 °Overcast

Calvin, Monday, 19 October

Overcast. High 65°, low 41°.

Pressure30.39 inHg
Wind5.7 mph NE
Humidity40%
Visibility—
Dew point36°
Tue, 2073° / 46°0Mostly clear
73 °Mostly clear

Calvin, Tuesday, 20 October

Mostly clear. High 73°, low 46°.

Pressure30.30 inHg
Wind8.2 mph SE
Humidity44%
Visibility—
Dew point45°
Wed, 2176° / 62°0Overcast
76 °Overcast

Calvin, Wednesday, 21 October

Overcast. High 76°, low 62°.

Pressure30.24 inHg
Wind7.8 mph S
Humidity44%
Visibility—
Dew point49°
Thu, 2281° / 58°0.01Light rain
81 °Light rain

Calvin, Thursday, 22 October

Light rain. High 81°, low 58°.

Pressure30.09 inHg
Wind15.5 mph SW
Humidity44%
Visibility—
Dew point52°
Fri, 2381° / 67°0Overcast
81 °Overcast

Calvin, Friday, 23 October

Overcast. High 81°, low 67°.

Pressure30.06 inHg
Wind6.8 mph SE
Humidity50%
Visibility—
Dew point58°
Sat, 2486° / 65°0Partly cloudy
86 °Partly cloudy

Calvin, Saturday, 24 October

Partly cloudy. High 86°, low 65°.

Pressure30.06 inHg
Wind16.4 mph SW
Humidity31%
Visibility—
Dew point48°
Sun, 2562° / 50°0.04Light rain
62 °Light rain

Calvin, Sunday, 25 October

Light rain. High 62°, low 50°.

Pressure30.33 inHg
Wind14.1 mph N
Humidity33%
Visibility—
Dew point31°
Mon, 2661° / 43°0Overcast
61 °Overcast

Calvin, Monday, 26 October

Overcast. High 61°, low 43°.

Pressure30.39 inHg
Wind8.2 mph NE
Humidity33%
Visibility—
Dew point29°
Tue, 2762° / 42°0Overcast
62 °Overcast

Calvin, Tuesday, 27 October

Overcast. High 62°, low 42°.

Pressure30.27 inHg
Wind6.9 mph NE
Humidity26%
Visibility—
Dew point23°
Wed, 2862° / 50°0.15Light rain
62 °Light rain

Calvin, Wednesday, 28 October

Light rain. High 62°, low 50°.

Pressure30.09 inHg
Wind12.1 mph S
Humidity30%
Visibility—
Dew point29°
Thu, 2961° / 51°0.07Light rain
61 °Light rain

Calvin, Thursday, 29 October

Light rain. High 61°, low 51°.

Pressure30.09 inHg
Wind9.9 mph S
Humidity58%
Visibility—
Dew point45°

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.