What is today's weather forecast for Diamond, IL?

Today's forecast for Diamond shows a high of 16 degrees and a low of -1 degrees Fahrenheit. Sunny, with a high near 16.

What is the 7-day weather forecast for Diamond, IL?

The 7-day forecast for Diamond shows highs from 16 to 34 degrees and lows from -1 to 25 degrees Fahrenheit. Expect precipitation on 6 days with chances of 20% or higher.

Will it rain in Diamond, IL this week?

Yes, rain is possible in Diamond this week. Precipitation chances: Friday (30% chance), Saturday (50% chance), Sunday (50% chance), Monday (50% chance), Tuesday (50% chance), Wednesday (50% chance).

How accurate is the Diamond weather forecast?

WeatherForYou provides highly accurate Diamond forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Diamond, IL Weather Forecast and Current Conditions

WEATHER ALERTS - Hydrologic Outlook

Current Conditions From Nearby Local Station

Switch to Metric Units

18°F
Feels Like 16°F

Humidity 62% Dew Point 7°F Wind W 2 MPH Gusts 2 Barometer 29.95 in.

Solar Rad 62 w/m²

Report from a personal weather station 2.2 mi. WSW of central Diamond
at 2:16 PM Thu, Dec 4, 2025

Point Forecast at a Glance

ThuDec 4

-1

FriDec 5

SatDec 6

SunDec 7

50%

MonDec 8

TueDec 9

WedDec 10

50%

7-Day Temperature Trend

Week Ahead Summary

Warming trend through the week with high temperatures climbing from 16°F to 34°F. Unsettled weather expected with wintry mix likely on at least 6 days.

Climate Context

This week's forecast shows temperatures running 10°F below the historical average for December. Normal highs for this period are around 37°F with lows around 22°F.

This Date in Weather History

1786 - The first of two great early December storms began. The storm produced 18 inches of snow at Morristown NJ, and twenty inches of snow at New Haven CT. It also resulted in high tides at Nantucket which did great damage.

Diamond, IL 7 Day Weather Forecast Details

Thursday Dec 4

Day: Sunny, with a high near 16. West northwest wind around 5 mph becoming calm.

Night: Patchy freezing fog after 9pm. Increasing clouds, with a low around -1. Wind chill values as low as -13. Light southwest wind becoming south 5 to 10 mph in the evening.

Friday Dec 5

Day: Patchy freezing fog before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 29. Wind chill values as low as -4. South southwest wind around 10 mph, with gusts as high as 20 mph.

Night: Patchy snow and freezing rain. Increasing clouds, with a low around 25. South southwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

Saturday Dec 6

Day: Mostly cloudy, with a high near 29. West wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 15 mph.

Night: A 50 percent chance of snow, mainly after midnight. Cloudy, with a low around 19.

Sunday Dec 7

Day: A 50 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 26.

Night: Mostly cloudy, with a low around 3.

Monday Dec 8

Day: Partly sunny, with a high near 21.

Night: A chance of snow. Mostly cloudy, with a low around 13.

Tuesday Dec 9

Day: Mostly cloudy, with a high near 32.

Night: A chance of snow. Cloudy, with a low around 23.

Wednesday Dec 10

Day: Rain and snow likely. Mostly cloudy, with a high near 34.

About Diamond, IL

Diamond is a village in Grundy and Will Counties, Illinois. The population was 2,640 at the 2020 census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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