EN
English Español

As of 22:50 CDT

Weather in Jamestown, IL

56°Current weather

Jamestown, Thursday, 22 October, 22:50

Clear. Feels like 55°. High 77°, low 46°.

Pressure30.24 inHg
Wind2.7 mph NE
Humidity80%
Visibility6.2 mi
Dew point49°
Fri, 2375° / 49°0Clear
75 °Clear

Jamestown, Friday, 23 October

Clear. High 75°, low 49°.

Pressure30.27 inHg
Wind4.9 mph SE
Humidity46%
Visibility6.2 mi
Dew point49°
Sat, 2474° / 48°0Overcast
74 °Overcast

Jamestown, Saturday, 24 October

Overcast. High 74°, low 48°.

Pressure30.36 inHg
Wind4.7 mph SE
Humidity50%
Visibility6.2 mi
Dew point49°
Sun, 2575° / 50°0Mostly clear
75 °Mostly clear

Jamestown, Sunday, 25 October

Mostly clear. High 75°, low 50°.

Pressure30.39 inHg
Wind3.5 mph S
Humidity47%
Visibility6.2 mi
Dew point51°
Mon, 2674° / 52°0Overcast
74 °Overcast

Jamestown, Monday, 26 October

Overcast. High 74°, low 52°.

Pressure30.33 inHg
Wind3.4 mph S
Humidity48%
Visibility6.2 mi
Dew point50°
Tue, 2772° / 52°0Overcast
72 °Overcast

Jamestown, Tuesday, 27 October

Overcast. High 72°, low 52°.

Pressure30.27 inHg
Wind4.8 mph SE
Humidity45%
Visibility—
Dew point47°
Wed, 2876° / 54°0Clear
76 °Clear

Jamestown, Wednesday, 28 October

Clear. High 76°, low 54°.

Pressure30.12 inHg
Wind10.9 mph S
Humidity35%
Visibility—
Dew point42°
Thu, 2978° / 58°0Overcast
78 °Overcast

Jamestown, Thursday, 29 October

Overcast. High 78°, low 58°.

Pressure30.15 inHg
Wind13.7 mph S
Humidity24%
Visibility—
Dew point36°
Fri, 3074° / 61°0.01Light rain
74 °Light rain

Jamestown, Friday, 30 October

Light rain. High 74°, low 61°.

Pressure30.09 inHg
Wind10.3 mph S
Humidity27%
Visibility—
Dew point36°
Sat, 3164° / 59°0.3Light rain
64 °Light rain

Jamestown, Saturday, 31 October

Light rain. High 64°, low 59°.

Pressure29.94 inHg
Wind14.8 mph S
Humidity88%
Visibility—
Dew point58°
Sun, 0169° / 61°0.29Light rain
69 °Light rain

Jamestown, Sunday, 1 November

Light rain. High 69°, low 61°.

Pressure29.97 inHg
Wind11.6 mph S
Humidity79%
Visibility—
Dew point61°
Mon, 0267° / 56°0.11Light rain
67 °Light rain

Jamestown, Monday, 2 November

Light rain. High 67°, low 56°.

Pressure30.00 inHg
Wind10.9 mph NW
Humidity84%
Visibility—
Dew point62°
Tue, 0362° / 51°0Overcast
62 °Overcast

Jamestown, Tuesday, 3 November

Overcast. High 62°, low 51°.

Pressure30.21 inHg
Wind12.7 mph NW
Humidity54%
Visibility—
Dew point43°
Wed, 0458° / 46°0Overcast
58 °Overcast

Jamestown, Wednesday, 4 November

Overcast. High 58°, low 46°.

Pressure30.12 inHg
Wind14.8 mph NW
Humidity54%
Visibility—
Dew point40°
Thu, 0560° / 39°0Mostly clear
60 °Mostly clear

Jamestown, Thursday, 5 November

Mostly clear. High 60°, low 39°.

Pressure30.18 inHg
Wind13.2 mph NW
Humidity34%
Visibility—
Dew point27°
Fri, 0672° / 47°0Clear
72 °Clear

Jamestown, Friday, 6 November

Clear. High 72°, low 47°.

Pressure29.94 inHg
Wind14.1 mph W
Humidity35%
Visibility—
Dew point37°

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.