As of 05:13 CST

Weather in Jamestown, IL

30°

Jamestown, Saturday, 14 November, 05:13

Clear. Feels like 24°. High 46°, low 29°.

Pressure30.24 inHg

Wind5.5 mph N

Humidity80%

Visibility6.2 mi

Dew point25°

See detailed hourly forecast

Sun, 1552° / 28°

52 °

Jamestown, Sunday, 15 November

Partly cloudy. High 52°, low 28°.

Pressure30.47 inHg

Wind0.1 mph S

Humidity50%

Visibility6.2 mi

Dew point30°

Mon, 1653° / 32°

53 °

Jamestown, Monday, 16 November

Clear. High 53°, low 32°.

Pressure30.53 inHg

Wind3.1 mph S

Humidity49%

Visibility6.2 mi

Dew point33°

Tue, 1754° / 33°

54 °

Jamestown, Tuesday, 17 November

Clear. High 54°, low 33°.

Pressure30.50 inHg

Wind5.7 mph S

Humidity54%

Visibility6.2 mi

Dew point37°

Wed, 1859° / 37°

59 °

Jamestown, Wednesday, 18 November

Overcast. High 59°, low 37°.

Pressure30.36 inHg

Wind9.9 mph S

Humidity51%

Visibility—

Dew point37°

Thu, 1960° / 46°

60 °

Jamestown, Thursday, 19 November

Overcast. High 60°, low 46°.

Pressure30.30 inHg

Wind9.3 mph S

Humidity65%

Visibility—

Dew point44°

Fri, 2066° / 44°

66 °

Jamestown, Friday, 20 November

Mostly clear. High 66°, low 44°.

Pressure30.30 inHg

Wind8.2 mph SE

Humidity33%

Visibility—

Dew point31°

Sat, 2169° / 49°

0.02

69 °

Jamestown, Saturday, 21 November

Light rain. High 69°, low 49°.

Pressure30.09 inHg

Wind18.5 mph S

Humidity52%

Visibility—

Dew point47°

Sun, 2253° / 42°

53 °

Jamestown, Sunday, 22 November

Clear. High 53°, low 42°.

Pressure30.18 inHg

Wind16.2 mph W

Humidity43%

Visibility—

Dew point29°

Mon, 2352° / 36°

52 °

Jamestown, Monday, 23 November

Mostly clear. High 52°, low 36°.

Pressure30.21 inHg

Wind15.7 mph W

Humidity26%

Visibility—

Dew point14°

Tue, 2450° / 30°

50 °

Jamestown, Tuesday, 24 November

Clear. High 50°, low 30°.

Pressure30.27 inHg

Wind5.7 mph NW

Humidity38%

Visibility—

Dew point20°

Wed, 2557° / 38°

0.02

57 °

Jamestown, Wednesday, 25 November

Light rain. High 57°, low 38°.

Pressure30.21 inHg

Wind11.1 mph N

Humidity33%

Visibility—

Dew point26°

Thu, 2643° / 29°

0.11

43 °

Jamestown, Thursday, 26 November

Snow. High 43°, low 29°.

Pressure30.42 inHg

Wind13.2 mph N

Humidity43%

Visibility—

Dew point19°

Fri, 2745° / 29°

45 °

Jamestown, Friday, 27 November

Overcast. High 45°, low 29°.

Pressure30.18 inHg

Wind12.8 mph E

Humidity35%

Visibility—

Dew point16°

Sat, 2837° / 34°

0.22

37 °

Jamestown, Saturday, 28 November

Light rain. High 37°, low 34°.

Pressure29.91 inHg

Wind8.1 mph N

Humidity88%

Visibility—

Dew point33°

Sun, 2939° / 35°

39 °

Jamestown, Sunday, 29 November

Overcast. High 39°, low 35°.

Pressure30.09 inHg

Wind7 mph NW

Humidity86%

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 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.