Weather in Marissa, IL
Marissa, Wednesday, 21 October, 13:05
Clear. Feels like 71°. High 73°, low 46°.
Monthly outlook for Marissa, IL: average high 69.4°, average low 53.1°. That is 3.5° above the climate normal for October. Precipitation is expected on 7 days (about 1.8 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 28 October (79°), the coolest 21 October (45.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 72.8° | 64.4° | +4.7° |
| 31 October – 9 November | 63.6° | 60.1° | +2° |
| 10 November – 19 November | at normal | 55.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Red Bud (12 mi).
0Marissa, Thursday, 22 October
Clear. High 75°, low 49°.
0Marissa, Friday, 23 October
Clear. High 73°, low 50°.
0
Marissa, Saturday, 24 October
Overcast. High 73°, low 50°.
0Marissa, Sunday, 25 October
Overcast. High 76°, low 51°.
0Marissa, Monday, 26 October
Overcast. High 74°, low 52°.
0Marissa, Tuesday, 27 October
Overcast. High 75°, low 57°.
0
Marissa, Wednesday, 28 October
Mostly clear. High 79°, low 61°.
0.1
Marissa, Thursday, 29 October
Light rain. High 67°, low 60°.
0.06Marissa, Friday, 30 October
Light rain. High 63°, low 55°.
0Marissa, Saturday, 31 October
Overcast. High 78°, low 57°.
0.46Marissa, Sunday, 1 November
Rain. High 71°, low 59°.
0.33Marissa, Monday, 2 November
Light rain. High 64°, low 54°.
0.48Marissa, Tuesday, 3 November
Rain. High 55°, low 52°.
0.34Marissa, Wednesday, 4 November
Rain. High 53°, low 47°.
0.07Marissa, Thursday, 5 November
Light rain. High 62°, low 47°.
0.1
Marissa, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Marissa, Saturday, 7 November
Climate normal for this date — 60-year average.
0.03Marissa, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09
Marissa, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Marissa, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Marissa, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09Marissa, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Marissa, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Marissa, Saturday, 14 November
Climate normal for this date — 60-year average.
0.15Marissa, Sunday, 15 November
Climate normal for this date — 60-year average.
0.12Marissa, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Marissa, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.15Marissa, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Marissa, Thursday, 19 November
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 Marissa, 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 Marissa, 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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