As of 02:55 CST

Weather in Jamestown, IL

46°

Jamestown, Wednesday, 11 November, 02:55

Clear. Feels like 44°. High 71°, low 46°.

Pressure29.97 inHg

Wind4.3 mph SW

Humidity92%

Visibility6.2 mi

Dew point44°

See detailed hourly forecast

Thu, 1254° / 39°

54 °

Jamestown, Thursday, 12 November

Overcast. High 54°, low 39°.

Pressure29.97 inHg

Wind13.3 mph NW

Humidity56%

Visibility6.2 mi

Dew point33°

Fri, 1344° / 33°

44 °

Jamestown, Friday, 13 November

Overcast. High 44°, low 33°.

Pressure30.09 inHg

Wind14.2 mph NW

Humidity60%

Visibility6.2 mi

Dew point24°

Sat, 1447° / 29°

47 °

Jamestown, Saturday, 14 November

Clear. High 47°, low 29°.

Pressure30.27 inHg

Wind3.8 mph NW

Humidity55%

Visibility6.2 mi

Dew point25°

Sun, 1550° / 31°

50 °

Jamestown, Sunday, 15 November

Clear. High 50°, low 31°.

Pressure30.39 inHg

Wind4.3 mph E

Humidity50%

Visibility—

Dew point29°

Mon, 1653° / 32°

53 °

Jamestown, Monday, 16 November

Partly cloudy. High 53°, low 32°.

Pressure30.47 inHg

Wind5.5 mph E

Humidity48%

Visibility—

Dew point30°

Tue, 1754° / 34°

54 °

Jamestown, Tuesday, 17 November

Clear. High 54°, low 34°.

Pressure30.36 inHg

Wind6.4 mph E

Humidity39%

Visibility—

Dew point26°

Wed, 1857° / 35°

57 °

Jamestown, Wednesday, 18 November

Mostly clear. High 57°, low 35°.

Pressure30.27 inHg

Wind11.4 mph SE

Humidity35%

Visibility—

Dew point25°

Thu, 1961° / 40°

61 °

Jamestown, Thursday, 19 November

Overcast. High 61°, low 40°.

Pressure30.09 inHg

Wind13.8 mph S

Humidity38%

Visibility—

Dew point29°

Fri, 2063° / 50°

0.35

63 °

Jamestown, Friday, 20 November

Rain. High 63°, low 50°.

Pressure29.97 inHg

Wind17.5 mph S

Humidity43%

Visibility—

Dew point38°

Sat, 2156° / 45°

0.18

56 °

Jamestown, Saturday, 21 November

Light rain. High 56°, low 45°.

Pressure29.68 inHg

Wind17.4 mph SW

Humidity71%

Visibility—

Dew point44°

Sun, 2242° / 30°

0.14

42 °

Jamestown, Sunday, 22 November

Snow. High 42°, low 30°.

Pressure30.09 inHg

Wind17 mph NW

Humidity65%

Visibility—

Dew point27°

Mon, 2329° / 21°

0.01

29 °

Jamestown, Monday, 23 November

Light snow. High 29°, low 21°.

Pressure30.30 inHg

Wind20.6 mph W

Humidity46%

Visibility—

Dew point7°

Tue, 2438° / 17°

38 °

Jamestown, Tuesday, 24 November

Clear. High 38°, low 17°.

Pressure30.42 inHg

Wind10.6 mph S

Humidity21%

Visibility—

Dew point-3°

Wed, 2551° / 29°

51 °

Jamestown, Wednesday, 25 November

Overcast. High 51°, low 29°.

Pressure30.18 inHg

Wind13.6 mph SW

Humidity37%

Visibility—

Dew point19°

Thu, 2648° / 38°

48 °

Jamestown, Thursday, 26 November

Overcast. High 48°, low 38°.

Pressure30.18 inHg

Wind10.8 mph S

Humidity51%

Visibility—

Dew point30°

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.