As of 07:48 CDT

Weather in Diona, IL

67°

Diona, Monday, 12 October, 07:48

Overcast. Feels like 66°. High 87°, low 59°.

Pressure29.97 inHg

Wind9.2 mph SW

Humidity72%

Visibility6.2 mi

Dew point57°

See detailed hourly forecast

Tue, 1389° / 68°

89 °

Diona, Tuesday, 13 October

Clear. High 89°, low 68°.

Pressure29.91 inHg

Wind9.8 mph SW

Humidity46%

Visibility6.2 mi

Dew point62°

Wed, 1482° / 68°

0.28

82 °

Diona, Wednesday, 14 October

Rain. High 82°, low 68°.

Pressure30.00 inHg

Wind3.2 mph N

Humidity62%

Visibility6.2 mi

Dew point68°

Thu, 1575° / 65°

0.39

75 °

Diona, Thursday, 15 October

Rain. High 75°, low 65°.

Pressure30.06 inHg

Wind7 mph S

Humidity91%

Visibility5.7 mi

Dew point70°

Fri, 1663° / 51°

0.01

63 °

Diona, Friday, 16 October

Light rain. High 63°, low 51°.

Pressure30.36 inHg

Wind17.7 mph N

Humidity44%

Visibility—

Dew point37°

Sat, 1760° / 42°

60 °

Diona, Saturday, 17 October

Clear. High 60°, low 42°.

Pressure30.47 inHg

Wind8.1 mph N

Humidity47%

Visibility—

Dew point36°

Sun, 1863° / 37°

63 °

Diona, Sunday, 18 October

Clear. High 63°, low 37°.

Pressure30.33 inHg

Wind9.6 mph S

Humidity26%

Visibility—

Dew point22°

Mon, 1972° / 47°

72 °

Diona, Monday, 19 October

Mostly clear. High 72°, low 47°.

Pressure30.27 inHg

Wind13 mph S

Humidity51%

Visibility—

Dew point48°

Tue, 2068° / 58°

0.11

68 °

Diona, Tuesday, 20 October

Light rain. High 68°, low 58°.

Pressure30.30 inHg

Wind6.7 mph SE

Humidity82%

Visibility—

Dew point56°

Wed, 2175° / 55°

75 °

Diona, Wednesday, 21 October

Clear. High 75°, low 55°.

Pressure30.30 inHg

Wind9.2 mph E

Humidity54%

Visibility—

Dew point53°

Thu, 2276° / 55°

76 °

Diona, Thursday, 22 October

Mostly clear. High 76°, low 55°.

Pressure30.27 inHg

Wind7.7 mph S

Humidity42%

Visibility—

Dew point47°

Fri, 2370° / 55°

0.01

70 °

Diona, Friday, 23 October

Light rain. High 70°, low 55°.

Pressure30.24 inHg

Wind13.7 mph SW

Humidity61%

Visibility—

Dew point54°

Sat, 2465° / 46°

65 °

Diona, Saturday, 24 October

Mostly clear. High 65°, low 46°.

Pressure30.33 inHg

Wind10.7 mph E

Humidity36%

Visibility—

Dew point34°

Sun, 2575° / 56°

0.01

75 °

Diona, Sunday, 25 October

Light rain. High 75°, low 56°.

Pressure29.85 inHg

Wind23.6 mph SW

Humidity61%

Visibility—

Dew point53°

Mon, 2661° / 49°

61 °

Diona, Monday, 26 October

Overcast. High 61°, low 49°.

Pressure30.03 inHg

Wind15.2 mph W

Humidity75%

Visibility—

Dew point49°

Tue, 2765° / 45°

65 °

Diona, Tuesday, 27 October

Partly cloudy. High 65°, low 45°.

Pressure30.09 inHg

Wind7.1 mph NE

Humidity45%

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 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.