As of 10:40 CDT

Weather in Raritan, IL

58°

Raritan, Monday, 19 October, 10:40

Partly cloudy. Feels like 56°. High 67°, low 40°.

Pressure30.39 inHg

Wind2 mph SW

Humidity61%

Visibility6.2 mi

Dew point45°

See detailed hourly forecast

Tue, 2069° / 42°

69 °

Raritan, Tuesday, 20 October

Clear. High 69°, low 42°.

Pressure30.36 inHg

Wind6.1 mph SE

Humidity47%

Visibility6.2 mi

Dew point44°

Wed, 2170° / 47°

70 °

Raritan, Wednesday, 21 October

Clear. High 70°, low 47°.

Pressure30.27 inHg

Wind3.6 mph SW

Humidity52%

Visibility6.2 mi

Dew point49°

Thu, 2271° / 51°

71 °

Raritan, Thursday, 22 October

Clear. High 71°, low 51°.

Pressure30.33 inHg

Wind2.6 mph E

Humidity54%

Visibility6.2 mi

Dew point52°

Fri, 2367° / 50°

67 °

Raritan, Friday, 23 October

Partly cloudy. High 67°, low 50°.

Pressure30.30 inHg

Wind9.8 mph SE

Humidity52%

Visibility—

Dew point47°

Sat, 2468° / 50°

68 °

Raritan, Saturday, 24 October

Mostly clear. High 68°, low 50°.

Pressure30.33 inHg

Wind10.6 mph S

Humidity44%

Visibility—

Dew point42°

Sun, 2567° / 57°

67 °

Raritan, Sunday, 25 October

Overcast. High 67°, low 57°.

Pressure30.30 inHg

Wind11.4 mph N

Humidity67%

Visibility—

Dew point55°

Mon, 2660° / 55°

0.05

60 °

Raritan, Monday, 26 October

Light rain. High 60°, low 55°.

Pressure30.21 inHg

Wind7.6 mph SE

Humidity70%

Visibility—

Dew point49°

Tue, 2762° / 41°

0.19

62 °

Raritan, Tuesday, 27 October

Light rain. High 62°, low 41°.

Pressure29.97 inHg

Wind18.3 mph NW

Humidity90%

Visibility—

Dew point53°

Wed, 2843° / 31°

43 °

Raritan, Wednesday, 28 October

Clear. High 43°, low 31°.

Pressure30.39 inHg

Wind15.1 mph NW

Humidity32%

Visibility—

Dew point12°

Thu, 2951° / 30°

51 °

Raritan, Thursday, 29 October

Clear. High 51°, low 30°.

Pressure30.24 inHg

Wind11.3 mph SW

Humidity33%

Visibility—

Dew point19°

Fri, 3057° / 38°

57 °

Raritan, Friday, 30 October

Overcast. High 57°, low 38°.

Pressure29.94 inHg

Wind13.5 mph SW

Humidity31%

Visibility—

Dew point24°

Sat, 3154° / 45°

0.01

54 °

Raritan, Saturday, 31 October

Light rain. High 54°, low 45°.

Pressure30.03 inHg

Wind12.1 mph S

Humidity57%

Visibility—

Dew point38°

Sun, 0158° / 41°

0.13

58 °

Raritan, Sunday, 1 November

Light rain. High 58°, low 41°.

Pressure29.94 inHg

Wind20 mph NW

Humidity71%

Visibility—

Dew point47°

Mon, 0249° / 38°

49 °

Raritan, Monday, 2 November

Mostly clear. High 49°, low 38°.

Pressure30.21 inHg

Wind17 mph NW

Humidity46%

Visibility—

Dew point26°

Tue, 0344° / 34°

44 °

Raritan, Tuesday, 3 November

Overcast. High 44°, low 34°.

Pressure30.06 inHg

Wind5.4 mph NE

Humidity61%

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 Raritan, 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 Raritan, 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.