As of 04:57 CDT

Weather in Diona, IL

58°

Diona, Sunday, 11 October, 04:57

Overcast. Feels like 57°. High 78°, low 56°.

Pressure29.97 inHg

Wind0 mph N

Humidity88%

Visibility6.2 mi

Dew point54°

See detailed hourly forecast

Mon, 1287° / 57°

87 °

Diona, Monday, 12 October

Overcast. High 87°, low 57°.

Pressure29.94 inHg

Wind9.5 mph SW

Humidity45%

Visibility6.2 mi

Dew point59°

Tue, 1388° / 68°

88 °

Diona, Tuesday, 13 October

Clear. High 88°, low 68°.

Pressure29.88 inHg

Wind10.2 mph SW

Humidity46%

Visibility6.2 mi

Dew point62°

Wed, 1484° / 72°

0.15

84 °

Diona, Wednesday, 14 October

Rain. High 84°, low 72°.

Pressure30.00 inHg

Wind2.4 mph NW

Humidity70%

Visibility6.2 mi

Dew point68°

Thu, 1571° / 63°

0.54

71 °

Diona, Thursday, 15 October

Rain. High 71°, low 63°.

Pressure30.09 inHg

Wind10.4 mph NE

Humidity81%

Visibility—

Dew point64°

Fri, 1669° / 45°

0.38

69 °

Diona, Friday, 16 October

Rain. High 69°, low 45°.

Pressure30.33 inHg

Wind17.1 mph NW

Humidity52%

Visibility—

Dew point43°

Sat, 1743° / 33°

43 °

Diona, Saturday, 17 October

Overcast. High 43°, low 33°.

Pressure30.33 inHg

Wind21.3 mph NW

Humidity45%

Visibility—

Dew point21°

Sun, 1849° / 30°

49 °

Diona, Sunday, 18 October

Clear. High 49°, low 30°.

Pressure30.53 inHg

Wind9.4 mph NW

Humidity34%

Visibility—

Dew point18°

Mon, 1958° / 34°

58 °

Diona, Monday, 19 October

Partly cloudy. High 58°, low 34°.

Pressure30.39 inHg

Wind14.4 mph SW

Humidity29%

Visibility—

Dew point21°

Tue, 2066° / 40°

66 °

Diona, Tuesday, 20 October

Clear. High 66°, low 40°.

Pressure30.27 inHg

Wind12.9 mph S

Humidity25%

Visibility—

Dew point24°

Wed, 2168° / 45°

68 °

Diona, Wednesday, 21 October

Overcast. High 68°, low 45°.

Pressure30.27 inHg

Wind13.1 mph S

Humidity29%

Visibility—

Dew point31°

Thu, 2268° / 52°

68 °

Diona, Thursday, 22 October

Overcast. High 68°, low 52°.

Pressure30.33 inHg

Wind7.3 mph SW

Humidity42%

Visibility—

Dew point40°

Fri, 2370° / 49°

70 °

Diona, Friday, 23 October

Clear. High 70°, low 49°.

Pressure30.33 inHg

Wind9.1 mph E

Humidity36%

Visibility—

Dew point37°

Sat, 2469° / 50°

69 °

Diona, Saturday, 24 October

Overcast. High 69°, low 50°.

Pressure30.09 inHg

Wind17.2 mph NW

Humidity52%

Visibility—

Dew point50°

Sun, 2555° / 39°

55 °

Diona, Sunday, 25 October

Clear. High 55°, low 39°.

Pressure30.36 inHg

Wind8.9 mph NW

Humidity39%

Visibility—

Dew point28°

Mon, 2662° / 39°

62 °

Diona, Monday, 26 October

Clear. High 62°, low 39°.

Pressure30.12 inHg

Wind11.3 mph W

Humidity37%

Visibility—

Dew point31°

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.