10-day forecast for Merna, IL: 45° to 75°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
75°
Best day: Thursday, October 29
62° · 0.77 in
Worst day: Saturday, October 31
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 2374° / 47°0
Morning53°feels 52°
Afternoon73°feels 72°
Evening55°feels 53°
Overnight52°feels 51°
74 °
Merna, Friday, 23 October
Clear. High 74°, low 47°.
Pressure30.30 inHg
Wind6.2 mph S
Humidity45%
Visibility6.2 mi
Dew point47°
Sat, 2472° / 47°0
Morning53°feels 52°
Afternoon69°feels 68°
Evening60°feels 59°
Overnight50°feels 47°
72 °
Merna, Saturday, 24 October
Overcast. High 72°, low 47°.
Pressure30.36 inHg
Wind6.7 mph S
Humidity52%
Visibility6.2 mi
Dew point49°
Sun, 2573° / 52°0
Morning53°feels 52°
Afternoon73°feels 71°
Evening60°feels 59°
Overnight54°feels 53°
73 °
Merna, Sunday, 25 October
Clear. High 73°, low 52°.
Pressure30.39 inHg
Wind5.3 mph S
Humidity47%
Visibility6.2 mi
Dew point49°
Mon, 2672° / 51°0
Morning56°feels 55°
Afternoon72°feels 71°
Evening60°feels 59°
Overnight54°feels 53°
72 °
Merna, Monday, 26 October
Overcast. High 72°, low 51°.
Pressure30.36 inHg
Wind1.8 mph E
Humidity50%
Visibility6.2 mi
Dew point50°
Tue, 2767° / 50°0
Morning55°feels 54°
Afternoon66°feels 65°
Evening60°feels 59°
Overnight56°feels 55°
67 °
Merna, Tuesday, 27 October
Overcast. High 67°, low 50°.
Pressure30.30 inHg
Wind6.5 mph E
Humidity56%
Visibility—
Dew point48°
Wed, 2872° / 54°0
Morning59°feels 58°
Afternoon69°feels 67°
Evening65°feels 63°
Overnight63°feels 62°
72 °
Merna, Wednesday, 28 October
Overcast. High 72°, low 54°.
Pressure30.12 inHg
Wind10.8 mph S
Humidity43%
Visibility—
Dew point44°
Thu, 2975° / 59°0
Morning63°feels 62°
Afternoon73°feels 72°
Evening68°feels 66°
Overnight65°feels 63°
75 °
Merna, Thursday, 29 October
Overcast. High 75°, low 59°.
Pressure30.15 inHg
Wind14.2 mph SW
Humidity30%
Visibility—
Dew point39°
Fri, 3065° / 58°0.1
Morning59°feels 58°
Afternoon62°feels 60°
Evening62°feels 60°
Overnight60°feels 59°
65 °
Merna, Friday, 30 October
Light rain. High 65°, low 58°.
Pressure30.12 inHg
Wind8.3 mph E
Humidity65%
Visibility—
Dew point49°
Sat, 3162° / 57°0.77
Morning58°feels 58°
Afternoon59°feels 59°
Evening62°feels 62°
Overnight61°feels 61°
62 °
Merna, Saturday, 31 October
Rain. High 62°, low 57°.
Pressure29.97 inHg
Wind16.6 mph S
Humidity93%
Visibility—
Dew point56°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Merna, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.