As of 05:52 CDT

Weather in Dayton, IL

59°

Dayton, Thursday, 15 October, 05:52

Overcast. Feels like 59°. High 69°, low 59°.

Pressure30.09 inHg

Wind8.2 mph E

Humidity91%

Visibility6.2 mi

Dew point57°

See detailed hourly forecast

Fri, 1657° / 46°

0.01

57 °

Dayton, Friday, 16 October

Light rain. High 57°, low 46°.

Pressure30.09 inHg

Wind18.1 mph NW

Humidity64%

Visibility6.2 mi

Dew point42°

Sat, 1756° / 37°

56 °

Dayton, Saturday, 17 October

Clear. High 56°, low 37°.

Pressure30.56 inHg

Wind3 mph W

Humidity45%

Visibility6.2 mi

Dew point30°

Sun, 1862° / 41°

62 °

Dayton, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.47 inHg

Wind12.4 mph SW

Humidity48%

Visibility6.2 mi

Dew point39°

Mon, 1964° / 41°

64 °

Dayton, Monday, 19 October

Partly cloudy. High 64°, low 41°.

Pressure30.39 inHg

Wind5.8 mph S

Humidity44%

Visibility—

Dew point38°

Tue, 2067° / 42°

67 °

Dayton, Tuesday, 20 October

Clear. High 67°, low 42°.

Pressure30.33 inHg

Wind6.2 mph E

Humidity42%

Visibility—

Dew point39°

Wed, 2168° / 51°

68 °

Dayton, Wednesday, 21 October

Clear. High 68°, low 51°.

Pressure30.36 inHg

Wind6.8 mph E

Humidity45%

Visibility—

Dew point42°

Thu, 2269° / 52°

69 °

Dayton, Thursday, 22 October

Overcast. High 69°, low 52°.

Pressure30.30 inHg

Wind7.7 mph SE

Humidity45%

Visibility—

Dew point42°

Fri, 2372° / 53°

72 °

Dayton, Friday, 23 October

Overcast. High 72°, low 53°.

Pressure30.15 inHg

Wind13.4 mph S

Humidity41%

Visibility—

Dew point42°

Sat, 2461° / 55°

0.37

61 °

Dayton, Saturday, 24 October

Rain. High 61°, low 55°.

Pressure30.15 inHg

Wind12.3 mph S

Humidity86%

Visibility—

Dew point52°

Sun, 2554° / 44°

0.06

54 °

Dayton, Sunday, 25 October

Light rain. High 54°, low 44°.

Pressure30.15 inHg

Wind14.6 mph W

Humidity54%

Visibility—

Dew point38°

Mon, 2650° / 38°

50 °

Dayton, Monday, 26 October

Clear. High 50°, low 38°.

Pressure30.33 inHg

Wind13.1 mph W

Humidity38%

Visibility—

Dew point23°

Tue, 2747° / 38°

47 °

Dayton, Tuesday, 27 October

Overcast. High 47°, low 38°.

Pressure30.27 inHg

Wind11.9 mph NW

Humidity35%

Visibility—

Dew point20°

Wed, 2857° / 35°

57 °

Dayton, Wednesday, 28 October

Overcast. High 57°, low 35°.

Pressure30.06 inHg

Wind18.4 mph SW

Humidity47%

Visibility—

Dew point32°

Thu, 2951° / 43°

51 °

Dayton, Thursday, 29 October

Light rain. High 51°, low 43°.

Pressure30.06 inHg

Wind8.5 mph NW

Humidity59%

Visibility—

Dew point36°

Fri, 3043° / 33°

43 °

Dayton, Friday, 30 October

Clear. High 43°, low 33°.

Pressure30.47 inHg

Wind16.5 mph N

Humidity40%

Visibility—

Dew point17°

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.