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As of 07:38 CDT

Weather in Boulder, IL

60°Current weather

Boulder, Friday, 9 October, 07:38

Clear. Feels like 59°. High 89°, low 55°.

Pressure30.12 inHg
Wind6.9 mph S
Humidity76%
Visibility6.2 mi
Dew point53°
Sat, 1079° / 56°0Light rain
79 °Light rain

Boulder, Saturday, 10 October

Light rain. High 79°, low 56°.

Pressure30.06 inHg
Wind6.4 mph E
Humidity52%
Visibility6.2 mi
Dew point53°
Sun, 1181° / 59°0Clear
81 °Clear

Boulder, Sunday, 11 October

Clear. High 81°, low 59°.

Pressure29.91 inHg
Wind8.4 mph NW
Humidity57%
Visibility6.2 mi
Dew point57°
Mon, 1289° / 65°0Clear
89 °Clear

Boulder, Monday, 12 October

Clear. High 89°, low 65°.

Pressure29.91 inHg
Wind9 mph SW
Humidity47%
Visibility6.2 mi
Dew point60°
Tue, 1390° / 70°0Clear
90 °Clear

Boulder, Tuesday, 13 October

Clear. High 90°, low 70°.

Pressure29.85 inHg
Wind11.2 mph SW
Humidity50%
Visibility—
Dew point64°
Wed, 1481° / 69°0.52Rain
81 °Rain

Boulder, Wednesday, 14 October

Rain. High 81°, low 69°.

Pressure29.88 inHg
Wind9.9 mph SE
Humidity74%
Visibility—
Dew point70°
Thu, 1591° / 64°0.28Light rain
91 °Light rain

Boulder, Thursday, 15 October

Light rain. High 91°, low 64°.

Pressure29.80 inHg
Wind20.6 mph SW
Humidity41%
Visibility—
Dew point60°
Fri, 1669° / 50°0.01Light rain
69 °Light rain

Boulder, Friday, 16 October

Light rain. High 69°, low 50°.

Pressure30.18 inHg
Wind18.8 mph W
Humidity33%
Visibility—
Dew point31°
Sat, 1751° / 41°0Partly cloudy
51 °Partly cloudy

Boulder, Saturday, 17 October

Partly cloudy. High 51°, low 41°.

Pressure30.33 inHg
Wind14.6 mph NW
Humidity47%
Visibility—
Dew point29°
Sun, 1860° / 37°0Mostly clear
60 °Mostly clear

Boulder, Sunday, 18 October

Mostly clear. High 60°, low 37°.

Pressure30.33 inHg
Wind6.3 mph NE
Humidity39%
Visibility—
Dew point30°
Mon, 1967° / 42°0Mostly clear
67 °Mostly clear

Boulder, Monday, 19 October

Mostly clear. High 67°, low 42°.

Pressure30.33 inHg
Wind7.6 mph NE
Humidity35%
Visibility—
Dew point33°
Tue, 2070° / 45°0Clear
70 °Clear

Boulder, Tuesday, 20 October

Clear. High 70°, low 45°.

Pressure30.33 inHg
Wind8.2 mph E
Humidity28%
Visibility—
Dew point30°
Wed, 2172° / 47°0Clear
72 °Clear

Boulder, Wednesday, 21 October

Clear. High 72°, low 47°.

Pressure30.24 inHg
Wind6.4 mph E
Humidity29%
Visibility—
Dew point33°
Thu, 2273° / 50°0Clear
73 °Clear

Boulder, Thursday, 22 October

Clear. High 73°, low 50°.

Pressure30.21 inHg
Wind7 mph NE
Humidity29%
Visibility—
Dew point35°
Fri, 2374° / 51°0Clear
74 °Clear

Boulder, Friday, 23 October

Clear. High 74°, low 51°.

Pressure30.15 inHg
Wind7.3 mph N
Humidity38%
Visibility—
Dew point43°
Sat, 2474° / 52°0Clear
74 °Clear

Boulder, Saturday, 24 October

Clear. High 74°, low 52°.

Pressure30.06 inHg
Wind6.8 mph NE
Humidity32%
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 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.