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As of 14:12 CDT

Weather in Waltham, IL

74°Current weather

Waltham, Thursday, 8 October, 14:12

Clear. Feels like 73°. High 74°, low 49°.

Pressure30.06 inHg
Wind7 mph W
Humidity35%
Visibility6.2 mi
Dew point45°
Fri, 0973° / 49°0.15Rain
73 °Rain

Waltham, Friday, 9 October

Rain. High 73°, low 49°.

Pressure30.12 inHg
Wind7.2 mph SE
Humidity60%
Visibility6.2 mi
Dew point54°
Sat, 1077° / 58°0Overcast
77 °Overcast

Waltham, Saturday, 10 October

Overcast. High 77°, low 58°.

Pressure30.09 inHg
Wind7 mph SE
Humidity59%
Visibility6.2 mi
Dew point57°
Sun, 1173° / 55°0Clear
73 °Clear

Waltham, Sunday, 11 October

Clear. High 73°, low 55°.

Pressure29.97 inHg
Wind2.9 mph E
Humidity66%
Visibility6.2 mi
Dew point58°
Mon, 1282° / 57°0Partly cloudy
82 °Partly cloudy

Waltham, Monday, 12 October

Partly cloudy. High 82°, low 57°.

Pressure29.85 inHg
Wind10.4 mph SW
Humidity58%
Visibility6.2 mi
Dew point61°
Tue, 1373° / 61°0Overcast
73 °Overcast

Waltham, Tuesday, 13 October

Overcast. High 73°, low 61°.

Pressure29.88 inHg
Wind11.5 mph NE
Humidity79%
Visibility—
Dew point64°
Wed, 1458° / 53°0.08Light rain
58 °Light rain

Waltham, Wednesday, 14 October

Light rain. High 58°, low 53°.

Pressure30.03 inHg
Wind13.2 mph E
Humidity79%
Visibility—
Dew point47°
Thu, 1588° / 65°0.57Rain
88 °Rain

Waltham, Thursday, 15 October

Rain. High 88°, low 65°.

Pressure29.83 inHg
Wind17.5 mph SW
Humidity53%
Visibility—
Dew point65°
Fri, 1671° / 51°0.1Light rain
71 °Light rain

Waltham, Friday, 16 October

Light rain. High 71°, low 51°.

Pressure30.27 inHg
Wind14.7 mph NW
Humidity62%
Visibility—
Dew point46°
Sat, 1755° / 43°0Partly cloudy
55 °Partly cloudy

Waltham, Saturday, 17 October

Partly cloudy. High 55°, low 43°.

Pressure30.62 inHg
Wind13.3 mph NE
Humidity53%
Visibility—
Dew point36°
Sun, 1856° / 41°0Overcast
56 °Overcast

Waltham, Sunday, 18 October

Overcast. High 56°, low 41°.

Pressure30.47 inHg
Wind7.9 mph SE
Humidity46%
Visibility—
Dew point32°
Mon, 1970° / 47°0.03Light rain
70 °Light rain

Waltham, Monday, 19 October

Light rain. High 70°, low 47°.

Pressure30.15 inHg
Wind13 mph S
Humidity56%
Visibility—
Dew point47°
Tue, 2072° / 54°0Partly cloudy
72 °Partly cloudy

Waltham, Tuesday, 20 October

Partly cloudy. High 72°, low 54°.

Pressure30.12 inHg
Wind11.1 mph SW
Humidity49%
Visibility—
Dew point48°
Wed, 2167° / 51°0Clear
67 °Clear

Waltham, Wednesday, 21 October

Clear. High 67°, low 51°.

Pressure30.06 inHg
Wind9.9 mph W
Humidity39%
Visibility—
Dew point39°
Thu, 2259° / 49°0.24Rain
59 °Rain

Waltham, Thursday, 22 October

Rain. High 59°, low 49°.

Pressure29.88 inHg
Wind21.5 mph W
Humidity75%
Visibility—
Dew point47°
Fri, 2357° / 42°0Clear
57 °Clear

Waltham, Friday, 23 October

Clear. High 57°, low 42°.

Pressure30.15 inHg
Wind16 mph W
Humidity48%
Visibility—
Dew point34°

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 Waltham, 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 Waltham, 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.