As of 05:04 CDT

Weather in Dayton, IL

64°

Dayton, Wednesday, 14 October, 05:04

Overcast. Feels like 65°. High 73°, low 60°.

Pressure29.88 inHg

Wind3.8 mph NW

Humidity95%

Visibility6.2 mi

Dew point63°

See detailed hourly forecast

Thu, 1570° / 58°

1.41

70 °

Dayton, Thursday, 15 October

Heavy rain. High 70°, low 58°.

Pressure29.94 inHg

Wind5.2 mph E

Humidity96%

Visibility1.2 mi

Dew point61°

Fri, 1662° / 46°

0.05

62 °

Dayton, Friday, 16 October

Rain. High 62°, low 46°.

Pressure30.09 inHg

Wind18 mph NW

Humidity60%

Visibility6.2 mi

Dew point40°

Sat, 1756° / 37°

56 °

Dayton, Saturday, 17 October

Clear. High 56°, low 37°.

Pressure30.56 inHg

Wind2.3 mph NW

Humidity45%

Visibility6.2 mi

Dew point30°

Sun, 1861° / 43°

61 °

Dayton, Sunday, 18 October

Clear. High 61°, low 43°.

Pressure30.45 inHg

Wind11.6 mph SW

Humidity40%

Visibility—

Dew point33°

Mon, 1964° / 41°

64 °

Dayton, Monday, 19 October

Overcast. High 64°, low 41°.

Pressure30.36 inHg

Wind7.3 mph S

Humidity46%

Visibility—

Dew point40°

Tue, 2068° / 50°

68 °

Dayton, Tuesday, 20 October

Clear. High 68°, low 50°.

Pressure30.27 inHg

Wind4.5 mph W

Humidity48%

Visibility—

Dew point44°

Wed, 2169° / 52°

69 °

Dayton, Wednesday, 21 October

Clear. High 69°, low 52°.

Pressure30.09 inHg

Wind12.2 mph SW

Humidity50%

Visibility—

Dew point47°

Thu, 2260° / 44°

60 °

Dayton, Thursday, 22 October

Clear. High 60°, low 44°.

Pressure30.27 inHg

Wind13.4 mph NE

Humidity49%

Visibility—

Dew point36°

Fri, 2355° / 39°

55 °

Dayton, Friday, 23 October

Clear. High 55°, low 39°.

Pressure30.42 inHg

Wind8.2 mph NE

Humidity48%

Visibility—

Dew point32°

Sat, 2457° / 40°

57 °

Dayton, Saturday, 24 October

Overcast. High 57°, low 40°.

Pressure30.24 inHg

Wind6.2 mph W

Humidity41%

Visibility—

Dew point29°

Sun, 2551° / 39°

0.16

51 °

Dayton, Sunday, 25 October

Light rain. High 51°, low 39°.

Pressure30.00 inHg

Wind16.8 mph NW

Humidity54%

Visibility—

Dew point34°

Mon, 2651° / 33°

51 °

Dayton, Monday, 26 October

Clear. High 51°, low 33°.

Pressure30.09 inHg

Wind9.9 mph NW

Humidity41%

Visibility—

Dew point24°

Tue, 2756° / 41°

56 °

Dayton, Tuesday, 27 October

Clear. High 56°, low 41°.

Pressure30.00 inHg

Wind5.8 mph NE

Humidity45%

Visibility—

Dew point32°

Wed, 2855° / 43°

55 °

Dayton, Wednesday, 28 October

Overcast. High 55°, low 43°.

Pressure29.97 inHg

Wind7.2 mph E

Humidity49%

Visibility—

Dew point34°

Thu, 2955° / 46°

55 °

Dayton, Thursday, 29 October

Overcast. High 55°, low 46°.

Pressure29.97 inHg

Wind8.7 mph E

Humidity61%

Visibility—

Dew point39°

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 Dayton, 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 Dayton, 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.