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As of 16:49 CDT

Weather in Boulder, IL

86°Current weather

Boulder, Thursday, 8 October, 16:49

Clear. Feels like 83°. High 86°, low 52°.

Pressure30.03 inHg
Wind2.4 mph SE
Humidity27%
Visibility6.2 mi
Dew point48°
Fri, 0987° / 54°0Clear
87 °Clear

Boulder, Friday, 9 October

Clear. High 87°, low 54°.

Pressure30.12 inHg
Wind9.3 mph S
Humidity42%
Visibility6.2 mi
Dew point53°
Sat, 1075° / 56°0Overcast
75 °Overcast

Boulder, Saturday, 10 October

Overcast. High 75°, low 56°.

Pressure30.06 inHg
Wind4.9 mph E
Humidity52%
Visibility6.2 mi
Dew point55°
Sun, 1178° / 59°0Clear
78 °Clear

Boulder, Sunday, 11 October

Clear. High 78°, low 59°.

Pressure29.97 inHg
Wind7.6 mph NW
Humidity59%
Visibility6.2 mi
Dew point57°
Mon, 1289° / 62°0Clear
89 °Clear

Boulder, Monday, 12 October

Clear. High 89°, low 62°.

Pressure29.94 inHg
Wind7.9 mph SW
Humidity50%
Visibility6.2 mi
Dew point61°
Tue, 1385° / 69°0.07Light rain
85 °Light rain

Boulder, Tuesday, 13 October

Light rain. High 85°, low 69°.

Pressure29.88 inHg
Wind12 mph NW
Humidity52%
Visibility—
Dew point63°
Wed, 1483° / 65°0.46Rain
83 °Rain

Boulder, Wednesday, 14 October

Rain. High 83°, low 65°.

Pressure29.91 inHg
Wind14.1 mph S
Humidity71%
Visibility—
Dew point66°
Thu, 1593° / 74°0.01Light rain
93 °Light rain

Boulder, Thursday, 15 October

Light rain. High 93°, low 74°.

Pressure29.97 inHg
Wind10.6 mph SW
Humidity40%
Visibility—
Dew point63°
Fri, 1680° / 59°0.01Light rain
80 °Light rain

Boulder, Friday, 16 October

Light rain. High 80°, low 59°.

Pressure30.18 inHg
Wind16.6 mph N
Humidity72%
Visibility—
Dew point66°
Sat, 1760° / 46°0Partly cloudy
60 °Partly cloudy

Boulder, Saturday, 17 October

Partly cloudy. High 60°, low 46°.

Pressure30.45 inHg
Wind15.3 mph N
Humidity34%
Visibility—
Dew point31°
Sun, 1862° / 40°0Clear
62 °Clear

Boulder, Sunday, 18 October

Clear. High 62°, low 40°.

Pressure30.53 inHg
Wind10.6 mph E
Humidity28%
Visibility—
Dew point24°
Mon, 1967° / 41°0Clear
67 °Clear

Boulder, Monday, 19 October

Clear. High 67°, low 41°.

Pressure30.42 inHg
Wind9.6 mph SE
Humidity22%
Visibility—
Dew point22°
Tue, 2074° / 50°0Partly cloudy
74 °Partly cloudy

Boulder, Tuesday, 20 October

Partly cloudy. High 74°, low 50°.

Pressure30.27 inHg
Wind11.4 mph S
Humidity28%
Visibility—
Dew point34°
Wed, 2171° / 56°0.13Light rain
71 °Light rain

Boulder, Wednesday, 21 October

Light rain. High 71°, low 56°.

Pressure30.12 inHg
Wind12.1 mph SW
Humidity62%
Visibility—
Dew point50°
Thu, 2274° / 55°0.02Light rain
74 °Light rain

Boulder, Thursday, 22 October

Light rain. High 74°, low 55°.

Pressure30.18 inHg
Wind6.2 mph NW
Humidity43%
Visibility—
Dew point46°
Fri, 2376° / 54°0Overcast
76 °Overcast

Boulder, Friday, 23 October

Overcast. High 76°, low 54°.

Pressure30.21 inHg
Wind5.5 mph E
Humidity35%
Visibility—
Dew point43°

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 Boulder, 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 Boulder, 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.