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As of 06:27 CDT

Weather in Jamestown, IL

54°Current weather

Jamestown, Saturday, 24 October, 06:27

Overcast. Feels like 53°. High 75°, low 52°.

Pressure30.33 inHg
Wind3.6 mph E
Humidity90%
Visibility6.2 mi
Dew point50°
Sun, 2577° / 48°0Overcast
77 °Overcast

Jamestown, Sunday, 25 October

Overcast. High 77°, low 48°.

Pressure30.39 inHg
Wind2.7 mph S
Humidity47%
Visibility6.2 mi
Dew point51°
Mon, 2674° / 54°0Overcast
74 °Overcast

Jamestown, Monday, 26 October

Overcast. High 74°, low 54°.

Pressure30.30 inHg
Wind3.9 mph SW
Humidity47%
Visibility6.2 mi
Dew point51°
Tue, 2772° / 53°0Overcast
72 °Overcast

Jamestown, Tuesday, 27 October

Overcast. High 72°, low 53°.

Pressure30.24 inHg
Wind6.2 mph S
Humidity50%
Visibility6.2 mi
Dew point51°
Wed, 2875° / 52°0.01Light rain
75 °Light rain

Jamestown, Wednesday, 28 October

Light rain. High 75°, low 52°.

Pressure30.18 inHg
Wind8.8 mph S
Humidity39%
Visibility—
Dew point45°
Thu, 2978° / 55°0Mostly clear
78 °Mostly clear

Jamestown, Thursday, 29 October

Mostly clear. High 78°, low 55°.

Pressure30.21 inHg
Wind7.5 mph S
Humidity43%
Visibility—
Dew point49°
Fri, 3081° / 59°0Overcast
81 °Overcast

Jamestown, Friday, 30 October

Overcast. High 81°, low 59°.

Pressure30.18 inHg
Wind8 mph SW
Humidity26%
Visibility—
Dew point40°
Sat, 3173° / 60°0.09Light rain
73 °Light rain

Jamestown, Saturday, 31 October

Light rain. High 73°, low 60°.

Pressure30.09 inHg
Wind13.7 mph S
Humidity33%
Visibility—
Dew point41°
Sun, 0170° / 61°0.11Light rain
70 °Light rain

Jamestown, Sunday, 1 November

Light rain. High 70°, low 61°.

Pressure30.06 inHg
Wind16.1 mph S
Humidity61%
Visibility—
Dew point55°
Mon, 0272° / 59°0.01Light rain
72 °Light rain

Jamestown, Monday, 2 November

Light rain. High 72°, low 59°.

Pressure30.00 inHg
Wind11.8 mph SE
Humidity52%
Visibility—
Dew point52°
Tue, 0359° / 49°0.22Rain
59 °Rain

Jamestown, Tuesday, 3 November

Rain. High 59°, low 49°.

Pressure29.88 inHg
Wind15.2 mph NW
Humidity54%
Visibility—
Dew point37°
Wed, 0453° / 49°0.31Rain
53 °Rain

Jamestown, Wednesday, 4 November

Rain. High 53°, low 49°.

Pressure29.83 inHg
Wind16.3 mph N
Humidity91%
Visibility—
Dew point50°
Thu, 0554° / 41°0.01Light rain
54 °Light rain

Jamestown, Thursday, 5 November

Light rain. High 54°, low 41°.

Pressure29.97 inHg
Wind17.9 mph N
Humidity40%
Visibility—
Dew point29°
Fri, 0641° / 31°0Clear
41 °Clear

Jamestown, Friday, 6 November

Clear. High 41°, low 31°.

Pressure30.39 inHg
Wind15.3 mph NW
Humidity31%
Visibility—
Dew point11°
Sat, 0745° / 27°0Overcast
45 °Overcast

Jamestown, Saturday, 7 November

Overcast. High 45°, low 27°.

Pressure30.50 inHg
Wind13 mph S
Humidity32%
Visibility—
Dew point12°
Sun, 0845° / 40°0.01Light rain
45 °Light rain

Jamestown, Sunday, 8 November

Light rain. High 45°, low 40°.

Pressure30.15 inHg
Wind18.1 mph S
Humidity46%
Visibility—
Dew point25°

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 Jamestown, 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 Jamestown, 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.