As of 02:52 CDT

Weather in Calvin, IL

59°

Calvin, Monday, 12 October, 02:52

Mostly clear. Feels like 59°. High 88°, low 59°.

Pressure29.97 inHg

Wind5.8 mph SW

Humidity99%

Visibility6.2 mi

Dew point59°

See detailed hourly forecast

Tue, 1387° / 65°

87 °

Calvin, Tuesday, 13 October

Clear. High 87°, low 65°.

Pressure29.94 inHg

Wind10.1 mph SW

Humidity48%

Visibility6.2 mi

Dew point62°

Wed, 1483° / 71°

0.03

83 °

Calvin, Wednesday, 14 October

Light rain. High 83°, low 71°.

Pressure30.03 inHg

Wind6.8 mph SW

Humidity67%

Visibility6.2 mi

Dew point71°

Thu, 1582° / 69°

0.83

82 °

Calvin, Thursday, 15 October

Heavy rain. High 82°, low 69°.

Pressure30.03 inHg

Wind8.6 mph SW

Humidity76%

Visibility6.2 mi

Dew point73°

Fri, 1671° / 54°

0.15

71 °

Calvin, Friday, 16 October

Rain. High 71°, low 54°.

Pressure30.33 inHg

Wind18.5 mph N

Humidity47%

Visibility—

Dew point42°

Sat, 1759° / 43°

59 °

Calvin, Saturday, 17 October

Clear. High 59°, low 43°.

Pressure30.47 inHg

Wind8.3 mph E

Humidity39%

Visibility—

Dew point32°

Sun, 1867° / 37°

67 °

Calvin, Sunday, 18 October

Clear. High 67°, low 37°.

Pressure30.47 inHg

Wind10.7 mph SW

Humidity31%

Visibility—

Dew point28°

Mon, 1971° / 46°

71 °

Calvin, Monday, 19 October

Overcast. High 71°, low 46°.

Pressure30.39 inHg

Wind11 mph S

Humidity46%

Visibility—

Dew point44°

Tue, 2077° / 55°

77 °

Calvin, Tuesday, 20 October

Overcast. High 77°, low 55°.

Pressure30.21 inHg

Wind9.1 mph S

Humidity50%

Visibility—

Dew point53°

Wed, 2181° / 59°

81 °

Calvin, Wednesday, 21 October

Clear. High 81°, low 59°.

Pressure30.06 inHg

Wind18.7 mph S

Humidity46%

Visibility—

Dew point55°

Thu, 2271° / 54°

0.68

71 °

Calvin, Thursday, 22 October

Rain. High 71°, low 54°.

Pressure29.85 inHg

Wind23.2 mph S

Humidity75%

Visibility—

Dew point54°

Fri, 2359° / 47°

59 °

Calvin, Friday, 23 October

Clear. High 59°, low 47°.

Pressure30.00 inHg

Wind17.8 mph NW

Humidity36%

Visibility—

Dew point31°

Sat, 2458° / 39°

58 °

Calvin, Saturday, 24 October

Clear. High 58°, low 39°.

Pressure30.15 inHg

Wind7.5 mph NW

Humidity38%

Visibility—

Dew point28°

Sun, 2565° / 48°

65 °

Calvin, Sunday, 25 October

Overcast. High 65°, low 48°.

Pressure29.80 inHg

Wind14.5 mph S

Humidity32%

Visibility—

Dew point32°

Mon, 2661° / 48°

61 °

Calvin, Monday, 26 October

Overcast. High 61°, low 48°.

Pressure29.97 inHg

Wind13.7 mph W

Humidity55%

Visibility—

Dew point42°

Tue, 2762° / 53°

62 °

Calvin, Tuesday, 27 October

Clear. High 62°, low 53°.

Pressure30.03 inHg

Wind13 mph NW

Humidity43%

Visibility—

Dew point38°

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.