What is today's weather forecast for Irwin, ID?

Today's forecast for Irwin shows a low of 36 degrees Fahrenheit. A slight chance of rain and snow before 11pm, then a slight chance of rain and snow after 2am.

What is the 7-day weather forecast for Irwin, ID?

The 7-day forecast for Irwin shows highs from 40 to 45 degrees and lows from 22 to 36 degrees Fahrenheit. Expect precipitation on 8 days with chances of 20% or higher.

Will it rain in Irwin, ID this week?

Yes, rain is possible in Irwin this week. Precipitation chances: Monday (20% chance), Tuesday (60% chance), Wednesday (100% chance), Thursday (90% chance), Friday (80% chance), Saturday (70% chance), Sunday (70% chance), Monday (70% chance).

How accurate is the Irwin weather forecast?

WeatherForYou provides highly accurate Irwin 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.

Irwin, ID Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Switch to Metric Units

36°F
Feels Like 28°F

Humidity 50% Dew Point 19°F Wind SE 11 MPH Gusts 15 Barometer N/A

Visibility 1.2 mi.

Report from a MADIS/MESONET weather station 7.3 mi. SE of central Irwin
at 8:30 PM Mon, Dec 15, 2025

Point Forecast at a Glance

MonDec 15

20%

TueDec 16

40%

WedDec 17

100%

ThuDec 18

90%

FriDec 19

80%

SatDec 20

70%

SunDec 21

70%

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 40°F to 45°F. Unsettled weather expected with wintry mix likely on at least 7 days.

Climate Context

This week's forecast shows temperatures running 13°F above the historical average for December. Normal highs for this period are around 30°F with lows around 12°F.

This Date in Weather History

1987 - A major winter storm hit the Great Lakes Region, intensifying explosively as it crossed northern Illinois. High winds and heavy snow created blizzard conditions in southeastern Wisconsin. Winds gusted to 73 mph, and snowfall totals ranged up to 17 inches at LaFarge. The barometric pressure at Chicago IL dropped three quarters of an inch in six hours to 28.96 inches, a record low reading for December. Up to a foot of snow blanketed northern Illinois, and winds in the Chicago area gusted to 75 mph. O'Hare Airport in Chicago was closed for several hours, for only the fourth time in twenty years. High winds derailed train cars at Avon IN. Light winds and partly sunny skies were reported near the center of the storm, a feature typical of tropical storms.

Irwin, ID 7 Day Weather Forecast Details

Monday Dec 15

Night: A slight chance of rain and snow before 11pm, then a slight chance of rain and snow after 2am. Snow level 5800 feet. Mostly cloudy, with a steady temperature around 36. Southeast wind 7 to 9 mph. Chance of precipitation is 20%.

Tuesday Dec 16

Day: A 40 percent chance of rain. Snow level 7100 feet. Mostly cloudy, with a high near 45. Southeast wind 10 to 14 mph, with gusts as high as 22 mph.

Night: Rain likely, mainly after 11pm. Snow level 7400 feet lowering to 6500 feet after midnight . Mostly cloudy, with a low around 36. South wind 10 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.

Wednesday Dec 17

Day: Rain before 2pm, then rain and snow. Snow level 7700 feet lowering to 5500 feet in the afternoon . High near 45. Windy, with a south wind 20 to 25 mph becoming west southwest 29 to 34 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Night: A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 22. Southwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 38 mph.

Thursday Dec 18

Day: Snow, mainly after 11am. High near 40. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Night: Snow before 8pm, then rain, possibly mixed with snow between 8pm and 11pm, then rain likely after 11pm. Snow level rising to 7300 feet after midnight. Low around 32. Chance of precipitation is 90%. Little or no snow accumulation expected.

Friday Dec 19

Day: Rain. Snow level 6900 feet. High near 44. Breezy. Chance of precipitation is 80%.

Night: Rain before 8pm, then rain, possibly mixed with snow. Snow level 6700 feet lowering to 5900 feet after midnight . Low around 31. Chance of precipitation is 80%.

Saturday Dec 20

Day: Rain and snow likely, becoming all snow after 8am. Mostly cloudy, with a high near 40. Chance of precipitation is 70%.

Night: Snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.

Sunday Dec 21

Day: Rain and snow likely. Snow level rising to 6300 feet in the afternoon. Mostly cloudy, with a high near 42. Chance of precipitation is 70%.

Night: Rain and snow likely. Snow level 6700 feet. Mostly cloudy, with a low around 33. Chance of precipitation is 70%.

Monday Dec 22

Day: Rain and snow likely. Snow level 7000 feet. Mostly cloudy, with a high near 44. Chance of precipitation is 70%.

About Irwin, ID

Irwin is a city in Bonneville County, Idaho, United States. It is part of the Idaho Falls, Idaho Metropolitan Statistical Area. The population was 259 at the 2020 census, and 219 at the 2010 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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