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As of 08:26 CDT

Weather in Calvin, IL

60°Current weather

Calvin, Saturday, 10 October, 08:26

Overcast. Feels like 60°. High 75°, low 57°.

Pressure30.09 inHg
Wind7.2 mph E
Humidity83%
Visibility6.2 mi
Dew point55°
Sun, 1181° / 52°0Clear
81 °Clear

Calvin, Sunday, 11 October

Clear. High 81°, low 52°.

Pressure30.00 inHg
Wind7.2 mph NW
Humidity55%
Visibility6.2 mi
Dew point56°
Mon, 1287° / 54°0Clear
87 °Clear

Calvin, Monday, 12 October

Clear. High 87°, low 54°.

Pressure29.97 inHg
Wind9.3 mph SW
Humidity45%
Visibility6.2 mi
Dew point60°
Tue, 1388° / 68°0Clear
88 °Clear

Calvin, Tuesday, 13 October

Clear. High 88°, low 68°.

Pressure29.91 inHg
Wind10.7 mph SW
Humidity46%
Visibility6.2 mi
Dew point62°
Wed, 1477° / 70°0.37Rain
77 °Rain

Calvin, Wednesday, 14 October

Rain. High 77°, low 70°.

Pressure30.03 inHg
Wind7.1 mph SW
Humidity94%
Visibility—
Dew point72°
Thu, 1571° / 62°0.23Light rain
71 °Light rain

Calvin, Thursday, 15 October

Light rain. High 71°, low 62°.

Pressure30.18 inHg
Wind10 mph NE
Humidity76%
Visibility—
Dew point60°
Fri, 1667° / 50°0.44Rain
67 °Rain

Calvin, Friday, 16 October

Rain. High 67°, low 50°.

Pressure30.00 inHg
Wind21.4 mph NW
Humidity41%
Visibility—
Dew point38°
Sat, 1745° / 37°0Overcast
45 °Overcast

Calvin, Saturday, 17 October

Overcast. High 45°, low 37°.

Pressure30.33 inHg
Wind19.7 mph NW
Humidity43%
Visibility—
Dew point21°
Sun, 1851° / 31°0Clear
51 °Clear

Calvin, Sunday, 18 October

Clear. High 51°, low 31°.

Pressure30.50 inHg
Wind9.1 mph NW
Humidity42%
Visibility—
Dew point25°
Mon, 1958° / 35°0Partly cloudy
58 °Partly cloudy

Calvin, Monday, 19 October

Partly cloudy. High 58°, low 35°.

Pressure30.45 inHg
Wind8 mph S
Humidity31%
Visibility—
Dew point23°
Tue, 2065° / 41°0Partly cloudy
65 °Partly cloudy

Calvin, Tuesday, 20 October

Partly cloudy. High 65°, low 41°.

Pressure30.33 inHg
Wind11.3 mph S
Humidity36%
Visibility—
Dew point33°
Wed, 2167° / 47°0.15Rain
67 °Rain

Calvin, Wednesday, 21 October

Rain. High 67°, low 47°.

Pressure30.12 inHg
Wind17 mph S
Humidity45%
Visibility—
Dew point42°
Thu, 2267° / 46°0Clear
67 °Clear

Calvin, Thursday, 22 October

Clear. High 67°, low 46°.

Pressure30.21 inHg
Wind6.5 mph SW
Humidity46%
Visibility—
Dew point40°
Fri, 2370° / 49°0Mostly clear
70 °Mostly clear

Calvin, Friday, 23 October

Mostly clear. High 70°, low 49°.

Pressure30.15 inHg
Wind7.4 mph SW
Humidity41%
Visibility—
Dew point41°
Sat, 2469° / 47°0Mostly clear
69 °Mostly clear

Calvin, Saturday, 24 October

Mostly clear. High 69°, low 47°.

Pressure30.18 inHg
Wind6.5 mph SE
Humidity31%
Visibility—
Dew point33°
Sun, 2570° / 52°0.03Light rain
70 °Light rain

Calvin, Sunday, 25 October

Light rain. High 70°, low 52°.

Pressure29.85 inHg
Wind16.5 mph NW
Humidity44%
Visibility—
Dew point44°

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.