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As of 05:05 CDT

Weather in Boulder, IL

52°Current weather

Boulder, Thursday, 8 October, 05:05

Clear. Feels like 51°. High 85°, low 52°.

Pressure30.00 inHg
Wind2.7 mph NE
Humidity87%
Visibility6.2 mi
Dew point48°
Fri, 0988° / 54°0Clear
88 °Clear

Boulder, Friday, 9 October

Clear. High 88°, low 54°.

Pressure30.12 inHg
Wind7.5 mph S
Humidity37%
Visibility6.2 mi
Dew point51°
Sat, 1081° / 62°0.04Light rain
81 °Light rain

Boulder, Saturday, 10 October

Light rain. High 81°, low 62°.

Pressure30.12 inHg
Wind4.2 mph E
Humidity57%
Visibility6.2 mi
Dew point59°
Sun, 1175° / 61°0.03Light rain
75 °Light rain

Boulder, Sunday, 11 October

Light rain. High 75°, low 61°.

Pressure29.94 inHg
Wind6.5 mph N
Humidity60%
Visibility6.2 mi
Dew point57°
Mon, 1287° / 59°0Clear
87 °Clear

Boulder, Monday, 12 October

Clear. High 87°, low 59°.

Pressure29.91 inHg
Wind11.3 mph S
Humidity45%
Visibility—
Dew point56°
Tue, 1385° / 66°0Partly cloudy
85 °Partly cloudy

Boulder, Tuesday, 13 October

Partly cloudy. High 85°, low 66°.

Pressure29.85 inHg
Wind10 mph SW
Humidity46%
Visibility—
Dew point60°
Wed, 1480° / 53°0Clear
80 °Clear

Boulder, Wednesday, 14 October

Clear. High 80°, low 53°.

Pressure30.03 inHg
Wind13 mph SE
Humidity34%
Visibility—
Dew point43°
Thu, 1593° / 67°0Clear
93 °Clear

Boulder, Thursday, 15 October

Clear. High 93°, low 67°.

Pressure29.91 inHg
Wind21.9 mph S
Humidity34%
Visibility—
Dew point57°
Fri, 1681° / 65°0.13Light rain
81 °Light rain

Boulder, Friday, 16 October

Light rain. High 81°, low 65°.

Pressure30.09 inHg
Wind19.9 mph S
Humidity57%
Visibility—
Dew point62°
Sat, 1766° / 57°0Overcast
66 °Overcast

Boulder, Saturday, 17 October

Overcast. High 66°, low 57°.

Pressure30.33 inHg
Wind12.9 mph N
Humidity50%
Visibility—
Dew point42°
Sun, 1870° / 57°0Overcast
70 °Overcast

Boulder, Sunday, 18 October

Overcast. High 70°, low 57°.

Pressure30.21 inHg
Wind5.7 mph N
Humidity46%
Visibility—
Dew point46°
Mon, 1984° / 61°0Overcast
84 °Overcast

Boulder, Monday, 19 October

Overcast. High 84°, low 61°.

Pressure30.09 inHg
Wind9 mph SW
Humidity42%
Visibility—
Dew point54°
Tue, 2078° / 62°0Overcast
78 °Overcast

Boulder, Tuesday, 20 October

Overcast. High 78°, low 62°.

Pressure30.09 inHg
Wind7.4 mph NW
Humidity47%
Visibility—
Dew point53°
Wed, 2176° / 55°0Clear
76 °Clear

Boulder, Wednesday, 21 October

Clear. High 76°, low 55°.

Pressure29.97 inHg
Wind6 mph NE
Humidity39%
Visibility—
Dew point45°
Thu, 2284° / 55°0Partly cloudy
84 °Partly cloudy

Boulder, Thursday, 22 October

Partly cloudy. High 84°, low 55°.

Pressure29.74 inHg
Wind15.9 mph S
Humidity37%
Visibility—
Dew point49°
Fri, 2387° / 65°0.06Light rain
87 °Light rain

Boulder, Friday, 23 October

Light rain. High 87°, low 65°.

Pressure29.85 inHg
Wind16.1 mph S
Humidity43%
Visibility—
Dew point57°

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.