As of 18:05 CDT

Weather in Griggsville, IL

52°

Griggsville, Friday, 16 October, 18:05

Overcast. Feels like 51°. High 55°, low 47°.

Pressure30.33 inHg

Wind17.3 mph NW

Humidity82%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Sat, 1757° / 37°

57 °

Griggsville, Saturday, 17 October

Clear. High 57°, low 37°.

Pressure30.56 inHg

Wind0.6 mph SE

Humidity47%

Visibility6.2 mi

Dew point33°

Sun, 1863° / 42°

63 °

Griggsville, Sunday, 18 October

Clear. High 63°, low 42°.

Pressure30.47 inHg

Wind9.9 mph S

Humidity47%

Visibility6.2 mi

Dew point39°

Mon, 1966° / 42°

66 °

Griggsville, Monday, 19 October

Partly cloudy. High 66°, low 42°.

Pressure30.39 inHg

Wind4.9 mph S

Humidity50%

Visibility6.2 mi

Dew point44°

Tue, 2068° / 48°

0.01

68 °

Griggsville, Tuesday, 20 October

Light rain. High 68°, low 48°.

Pressure30.33 inHg

Wind4.8 mph SE

Humidity51%

Visibility6.2 mi

Dew point45°

Wed, 2172° / 50°

72 °

Griggsville, Wednesday, 21 October

Clear. High 72°, low 50°.

Pressure30.27 inHg

Wind5.2 mph S

Humidity39%

Visibility—

Dew point42°

Thu, 2277° / 51°

77 °

Griggsville, Thursday, 22 October

Clear. High 77°, low 51°.

Pressure30.18 inHg

Wind7 mph S

Humidity37%

Visibility—

Dew point44°

Fri, 2379° / 57°

79 °

Griggsville, Friday, 23 October

Overcast. High 79°, low 57°.

Pressure30.15 inHg

Wind8.9 mph SE

Humidity25%

Visibility—

Dew point36°

Sat, 2481° / 59°

81 °

Griggsville, Saturday, 24 October

Partly cloudy. High 81°, low 59°.

Pressure30.21 inHg

Wind9.7 mph SE

Humidity26%

Visibility—

Dew point38°

Sun, 2580° / 58°

80 °

Griggsville, Sunday, 25 October

Partly cloudy. High 80°, low 58°.

Pressure30.15 inHg

Wind11.3 mph S

Humidity27%

Visibility—

Dew point40°

Mon, 2665° / 45°

0.02

65 °

Griggsville, Monday, 26 October

Light rain. High 65°, low 45°.

Pressure30.27 inHg

Wind14.5 mph NW

Humidity45%

Visibility—

Dew point37°

Tue, 2760° / 37°

60 °

Griggsville, Tuesday, 27 October

Mostly clear. High 60°, low 37°.

Pressure30.36 inHg

Wind4.4 mph N

Humidity28%

Visibility—

Dew point22°

Wed, 2870° / 51°

70 °

Griggsville, Wednesday, 28 October

Overcast. High 70°, low 51°.

Pressure30.18 inHg

Wind13 mph S

Humidity17%

Visibility—

Dew point19°

Thu, 2974° / 59°

74 °

Griggsville, Thursday, 29 October

Overcast. High 74°, low 59°.

Pressure29.80 inHg

Wind19 mph SW

Humidity66%

Visibility—

Dew point53°

Fri, 3065° / 49°

65 °

Griggsville, Friday, 30 October

Partly cloudy. High 65°, low 49°.

Pressure30.06 inHg

Wind15.6 mph NW

Humidity42%

Visibility—

Dew point38°

Sat, 3169° / 48°

0.08

69 °

Griggsville, Saturday, 31 October

Light rain. High 69°, low 48°.

Pressure29.94 inHg

Wind14.5 mph S

Humidity35%

Visibility—

Dew point37°

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 Griggsville, 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 Griggsville, 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.