10-day forecast for Merna, IL: 48° to 77°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Friday, October 30
72° · 0.17 in
Worst day: Sunday, November 1
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 2574° / 50°0
Morning53°feels 52°
Afternoon74°feels 73°
Evening56°feels 54°
Overnight52°feels 51°
74 °
Merna, Sunday, 25 October
Overcast. High 74°, low 50°.
Pressure30.39 inHg
Wind5.5 mph S
Humidity45%
Visibility6.2 mi
Dew point48°
Mon, 2673° / 51°0
Morning54°feels 53°
Afternoon73°feels 72°
Evening60°feels 59°
Overnight52°feels 50°
73 °
Merna, Monday, 26 October
Overcast. High 73°, low 51°.
Pressure30.30 inHg
Wind1.4 mph S
Humidity46%
Visibility6.2 mi
Dew point49°
Tue, 2771° / 52°0
Morning52°feels 52°
Afternoon71°feels 70°
Evening60°feels 59°
Overnight53°feels 53°
71 °
Merna, Tuesday, 27 October
Overcast. High 71°, low 52°.
Pressure30.24 inHg
Wind7.7 mph S
Humidity49%
Visibility6.2 mi
Dew point50°
Wed, 2874° / 54°0.01
Morning57°feels 56°
Afternoon72°feels 71°
Evening65°feels 64°
Overnight57°feels 56°
74 °
Merna, Wednesday, 28 October
Light rain. High 74°, low 54°.
Pressure30.18 inHg
Wind9.5 mph S
Humidity56%
Visibility6.2 mi
Dew point52°
Thu, 2975° / 58°0
Morning63°feels 62°
Afternoon73°feels 73°
Evening67°feels 67°
Overnight63°feels 63°
75 °
Merna, Thursday, 29 October
Mostly clear. High 75°, low 58°.
Pressure30.15 inHg
Wind11.4 mph S
Humidity53%
Visibility—
Dew point54°
Fri, 3077° / 58°0
Morning63°feels 62°
Afternoon74°feels 73°
Evening66°feels 64°
Overnight63°feels 61°
77 °
Merna, Friday, 30 October
Overcast. High 77°, low 58°.
Pressure30.15 inHg
Wind8.5 mph S
Humidity46%
Visibility—
Dew point51°
Sat, 3175° / 63°0.05
Morning66°feels 65°
Afternoon75°feels 74°
Evening70°feels 70°
Overnight66°feels 65°
75 °
Merna, Saturday, 31 October
Light rain. High 75°, low 63°.
Pressure30.03 inHg
Wind18.2 mph SW
Humidity46%
Visibility—
Dew point51°
Sun, 0172° / 64°0.17
Morning67°feels 67°
Afternoon71°feels 71°
Evening67°feels 67°
Overnight64°feels 64°
72 °
Merna, Sunday, 1 November
Light rain. High 72°, low 64°.
Pressure29.88 inHg
Wind19.4 mph S
Humidity70%
Visibility—
Dew point60°
Mon, 0270° / 57°0
Morning60°feels 60°
Afternoon67°feels 67°
Evening61°feels 60°
Overnight58°feels 57°
70 °
Merna, Monday, 2 November
Partly cloudy. High 70°, low 57°.
Pressure30.09 inHg
Wind8.6 mph N
Humidity55%
Visibility—
Dew point50°
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.