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As of 18:19 CDT

Weather in Diona, IL

75°Current weather

Diona, Wednesday, 14 October, 18:19

Overcast. Feels like 76°. High 75°, low 69°.

Pressure30.00 inHg
Wind0 mph N
Humidity90%
Visibility6.2 mi
Dew point71°
Thu, 1577° / 66°0.47Rain
77 °Rain

Diona, Thursday, 15 October

Rain. High 77°, low 66°.

Pressure29.97 inHg
Wind8.9 mph S
Humidity71%
Visibility6.2 mi
Dew point67°
Fri, 1669° / 50°0.2Rain
69 °Rain

Diona, Friday, 16 October

Rain. High 69°, low 50°.

Pressure30.09 inHg
Wind16.5 mph NW
Humidity47%
Visibility6.2 mi
Dew point38°
Sat, 1757° / 43°0Overcast
57 °Overcast

Diona, Saturday, 17 October

Overcast. High 57°, low 43°.

Pressure30.53 inHg
Wind10.2 mph NE
Humidity47%
Visibility6.2 mi
Dew point35°
Sun, 1861° / 38°0Clear
61 °Clear

Diona, Sunday, 18 October

Clear. High 61°, low 38°.

Pressure30.53 inHg
Wind5.8 mph SE
Humidity43%
Visibility6.2 mi
Dew point34°
Mon, 1965° / 40°0Partly cloudy
65 °Partly cloudy

Diona, Monday, 19 October

Partly cloudy. High 65°, low 40°.

Pressure30.42 inHg
Wind4.2 mph NE
Humidity35%
Visibility—
Dew point32°
Tue, 2071° / 45°0Mostly clear
71 °Mostly clear

Diona, Tuesday, 20 October

Mostly clear. High 71°, low 45°.

Pressure30.30 inHg
Wind7.3 mph SE
Humidity43%
Visibility—
Dew point43°
Wed, 2174° / 59°0Overcast
74 °Overcast

Diona, Wednesday, 21 October

Overcast. High 74°, low 59°.

Pressure30.24 inHg
Wind10.3 mph S
Humidity41%
Visibility—
Dew point46°
Thu, 2272° / 60°0.11Light rain
72 °Light rain

Diona, Thursday, 22 October

Light rain. High 72°, low 60°.

Pressure30.06 inHg
Wind14.2 mph S
Humidity54%
Visibility—
Dew point53°
Fri, 2377° / 59°0Clear
77 °Clear

Diona, Friday, 23 October

Clear. High 77°, low 59°.

Pressure30.06 inHg
Wind7.7 mph SE
Humidity57%
Visibility—
Dew point57°
Sat, 2483° / 62°0.01Light rain
83 °Light rain

Diona, Saturday, 24 October

Light rain. High 83°, low 62°.

Pressure30.00 inHg
Wind20.7 mph SW
Humidity33%
Visibility—
Dew point49°
Sun, 2560° / 48°0Overcast
60 °Overcast

Diona, Sunday, 25 October

Overcast. High 60°, low 48°.

Pressure30.33 inHg
Wind13 mph NW
Humidity29%
Visibility—
Dew point26°
Mon, 2659° / 42°0Clear
59 °Clear

Diona, Monday, 26 October

Clear. High 59°, low 42°.

Pressure30.39 inHg
Wind6.8 mph N
Humidity24%
Visibility—
Dew point20°
Tue, 2761° / 41°0Overcast
61 °Overcast

Diona, Tuesday, 27 October

Overcast. High 61°, low 41°.

Pressure30.30 inHg
Wind6.9 mph S
Humidity27%
Visibility—
Dew point22°
Wed, 2861° / 51°0.12Light rain
61 °Light rain

Diona, Wednesday, 28 October

Light rain. High 61°, low 51°.

Pressure30.09 inHg
Wind6.3 mph S
Humidity28%
Visibility—
Dew point26°
Thu, 2961° / 45°0.09Light rain
61 °Light rain

Diona, Thursday, 29 October

Light rain. High 61°, low 45°.

Pressure30.09 inHg
Wind8.6 mph W
Humidity61%
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 Diona, 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 Diona, 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.