As of 02:00 CDT

Weather in Nelson, IL

54°

Nelson, Thursday, 8 October, 02:00

Overcast. Feels like 53°. High 72°, low 50°.

Pressure29.97 inHg

Wind0 mph N

Humidity80%

Visibility6.2 mi

Dew point47°

See detailed hourly forecast

Fri, 0975° / 52°

75 °

Nelson, Friday, 9 October

Overcast. High 75°, low 52°.

Pressure30.09 inHg

Wind10.1 mph S

Humidity56%

Visibility6.2 mi

Dew point53°

Sat, 1081° / 60°

81 °

Nelson, Saturday, 10 October

Clear. High 81°, low 60°.

Pressure30.09 inHg

Wind9.8 mph S

Humidity54%

Visibility6.2 mi

Dew point58°

Sun, 1172° / 59°

72 °

Nelson, Sunday, 11 October

Clear. High 72°, low 59°.

Pressure29.97 inHg

Wind6.3 mph SE

Humidity62%

Visibility6.2 mi

Dew point56°

Mon, 1281° / 56°

81 °

Nelson, Monday, 12 October

Mostly clear. High 81°, low 56°.

Pressure29.77 inHg

Wind12.4 mph SW

Humidity55%

Visibility—

Dew point58°

Tue, 1364° / 48°

64 °

Nelson, Tuesday, 13 October

Overcast. High 64°, low 48°.

Pressure30.06 inHg

Wind16.7 mph N

Humidity57%

Visibility—

Dew point42°

Wed, 1458° / 43°

58 °

Nelson, Wednesday, 14 October

Overcast. High 58°, low 43°.

Pressure30.06 inHg

Wind15.3 mph SE

Humidity52%

Visibility—

Dew point38°

Thu, 1587° / 61°

0.06

87 °

Nelson, Thursday, 15 October

Light rain. High 87°, low 61°.

Pressure29.77 inHg

Wind17.6 mph SW

Humidity58%

Visibility—

Dew point65°

Fri, 1678° / 56°

0.11

78 °

Nelson, Friday, 16 October

Light rain. High 78°, low 56°.

Pressure29.85 inHg

Wind17.4 mph SW

Humidity78%

Visibility—

Dew point68°

Sat, 1751° / 46°

51 °

Nelson, Saturday, 17 October

Overcast. High 51°, low 46°.

Pressure30.18 inHg

Wind15.3 mph W

Humidity64%

Visibility—

Dew point37°

Sun, 1854° / 46°

54 °

Nelson, Sunday, 18 October

Overcast. High 54°, low 46°.

Pressure30.30 inHg

Wind7.9 mph W

Humidity50%

Visibility—

Dew point33°

Mon, 1962° / 43°

62 °

Nelson, Monday, 19 October

Partly cloudy. High 62°, low 43°.

Pressure30.24 inHg

Wind10.9 mph SW

Humidity47%

Visibility—

Dew point37°

Tue, 2061° / 45°

61 °

Nelson, Tuesday, 20 October

Clear. High 61°, low 45°.

Pressure30.15 inHg

Wind12.3 mph N

Humidity47%

Visibility—

Dew point38°

Wed, 2156° / 37°

56 °

Nelson, Wednesday, 21 October

Clear. High 56°, low 37°.

Pressure30.24 inHg

Wind9.6 mph NE

Humidity50%

Visibility—

Dew point34°

Thu, 2266° / 43°

66 °

Nelson, Thursday, 22 October

Clear. High 66°, low 43°.

Pressure29.71 inHg

Wind17.2 mph S

Humidity48%

Visibility—

Dew point41°

Fri, 2355° / 48°

0.04

55 °

Nelson, Friday, 23 October

Light rain. High 55°, low 48°.

Pressure29.74 inHg

Wind13.1 mph SW

Humidity65%

Visibility—

Dew point42°

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 Nelson, 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 Nelson, 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.