Weather in Irwins Park, IL
Irwins Park, Sunday, 9 August, 16:41
Overcast. Feels like 101°. High 89°, low 71°.
Monthly outlook for Irwins Park, IL: average high 93.3°, average low 71°. That is 5.6° above the climate normal for August. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 15 August (100.3°), the coolest 22 August (61.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 92.5° | 83.2° | +5.2° |
| 19 August – 28 August | 94.7° | 83.4° | +6.2° |
| 29 August – 7 September | at normal | 81.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Springfield (11 mi).
0.02
Irwins Park, Monday, 10 August
Light rain. High 98°, low 75°.
0.12Irwins Park, Tuesday, 11 August
Rain. High 97°, low 75°.
0.5Irwins Park, Wednesday, 12 August
Rain. High 91°, low 70°.
0.13Irwins Park, Thursday, 13 August
Light rain. High 85°, low 70°.
0Irwins Park, Friday, 14 August
Overcast. High 89°, low 73°.
0
Irwins Park, Saturday, 15 August
Partly cloudy. High 100°, low 76°.
0Irwins Park, Sunday, 16 August
Partly cloudy. High 89°, low 73°.
0.06Irwins Park, Monday, 17 August
Light rain. High 90°, low 66°.
0Irwins Park, Tuesday, 18 August
Overcast. High 96°, low 78°.
0.03Irwins Park, Wednesday, 19 August
Light rain. High 93°, low 73°.
0.02Irwins Park, Thursday, 20 August
Light rain. High 97°, low 71°.
0.01Irwins Park, Friday, 21 August
Light rain. High 97°, low 71°.
0
Irwins Park, Saturday, 22 August
Clear. High 90°, low 61°.
0Irwins Park, Sunday, 23 August
Partly cloudy. High 91°, low 64°.
0.04Irwins Park, Monday, 24 August
Light rain. High 99°, low 70°.
0.08Irwins Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.11Irwins Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Irwins Park, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11Irwins Park, Friday, 28 August
Climate normal for this date — 60-year average.
0.08Irwins Park, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Irwins Park, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09
Irwins Park, Monday, 31 August
Climate normal for this date — 60-year average.
0.17Irwins Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Irwins Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Irwins Park, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Irwins Park, Friday, 4 September
Climate normal for this date — 60-year average.
0.04Irwins Park, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Irwins Park, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Irwins Park, Monday, 7 September
Climate normal for this date — 60-year average.
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 Irwins Park, 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 Irwins Park, 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.
Sun and moon today
Weather history
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