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As of 08:12 CST

Weather in Jamestown, IL

59°Current weather

Jamestown, Sunday, 1 November, 08:12

Overcast. Feels like 59°. High 69°, low 59°.

Pressure30.24 inHg
Wind8.9 mph SE
Humidity89%
Visibility6.2 mi
Dew point56°
Mon, 0275° / 61°0.01Light rain
75 °Light rain

Jamestown, Monday, 2 November

Light rain. High 75°, low 61°.

Pressure30.03 inHg
Wind16.7 mph S
Humidity68%
Visibility6.2 mi
Dew point60°
Tue, 0377° / 65°0.96Heavy rain
77 °Heavy rain

Jamestown, Tuesday, 3 November

Heavy rain. High 77°, low 65°.

Pressure29.85 inHg
Wind19.1 mph S
Humidity64%
Visibility6.2 mi
Dew point62°
Wed, 0465° / 55°0.21Heavy rain
65 °Heavy rain

Jamestown, Wednesday, 4 November

Heavy rain. High 65°, low 55°.

Pressure29.77 inHg
Wind12.8 mph SW
Humidity56%
Visibility6.2 mi
Dew point47°
Thu, 0562° / 51°0Partly cloudy
62 °Partly cloudy

Jamestown, Thursday, 5 November

Partly cloudy. High 62°, low 51°.

Pressure29.80 inHg
Wind13.3 mph W
Humidity54%
Visibility—
Dew point43°
Fri, 0660° / 50°0Overcast
60 °Overcast

Jamestown, Friday, 6 November

Overcast. High 60°, low 50°.

Pressure29.91 inHg
Wind10.2 mph NW
Humidity63%
Visibility—
Dew point46°
Sat, 0764° / 47°0Clear
64 °Clear

Jamestown, Saturday, 7 November

Clear. High 64°, low 47°.

Pressure29.97 inHg
Wind10.2 mph W
Humidity51%
Visibility—
Dew point42°
Sun, 0864° / 44°0Clear
64 °Clear

Jamestown, Sunday, 8 November

Clear. High 64°, low 44°.

Pressure29.97 inHg
Wind13.6 mph NW
Humidity29%
Visibility—
Dew point26°
Mon, 0966° / 45°0Clear
66 °Clear

Jamestown, Monday, 9 November

Clear. High 66°, low 45°.

Pressure30.06 inHg
Wind7.6 mph W
Humidity42%
Visibility—
Dew point37°
Tue, 1066° / 47°0Overcast
66 °Overcast

Jamestown, Tuesday, 10 November

Overcast. High 66°, low 47°.

Pressure30.18 inHg
Wind6.8 mph N
Humidity42%
Visibility—
Dew point38°
Wed, 1170° / 53°0.02Light rain
70 °Light rain

Jamestown, Wednesday, 11 November

Light rain. High 70°, low 53°.

Pressure29.97 inHg
Wind8.2 mph SW
Humidity47%
Visibility—
Dew point47°
Thu, 1259° / 46°0Overcast
59 °Overcast

Jamestown, Thursday, 12 November

Overcast. High 59°, low 46°.

Pressure30.12 inHg
Wind11.5 mph NE
Humidity41%
Visibility—
Dew point33°
Fri, 1365° / 41°0Clear
65 °Clear

Jamestown, Friday, 13 November

Clear. High 65°, low 41°.

Pressure30.03 inHg
Wind11.6 mph S
Humidity34%
Visibility—
Dew point31°
Sat, 1469° / 49°0.09Light rain
69 °Light rain

Jamestown, Saturday, 14 November

Light rain. High 69°, low 49°.

Pressure29.80 inHg
Wind18 mph S
Humidity51%
Visibility—
Dew point48°
Sun, 1574° / 56°0.01Light rain
74 °Light rain

Jamestown, Sunday, 15 November

Light rain. High 74°, low 56°.

Pressure29.62 inHg
Wind14.1 mph S
Humidity54%
Visibility—
Dew point52°
Mon, 1679° / 61°0Overcast
79 °Overcast

Jamestown, Monday, 16 November

Overcast. High 79°, low 61°.

Pressure29.50 inHg
Wind23.4 mph SW
Humidity45%
Visibility—
Dew point54°

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.