10-day forecast for Blair, IL: 44° to 77°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Thursday, October 22
56° · 0.31 in
Worst day: Saturday, October 31
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 2374° / 48°0
Morning52°feels 51°
Afternoon74°feels 73°
Evening56°feels 54°
Overnight51°feels 49°
74 °
Blair, Friday, 23 October
Clear. High 74°, low 48°.
Pressure30.30 inHg
Wind4.1 mph SE
Humidity49%
Visibility6.2 mi
Dew point49°
Sat, 2471° / 47°0
Morning50°feels 49°
Afternoon71°feels 69°
Evening59°feels 57°
Overnight52°feels 51°
71 °
Blair, Saturday, 24 October
Overcast. High 71°, low 47°.
Pressure30.36 inHg
Wind4 mph SE
Humidity53%
Visibility6.2 mi
Dew point50°
Sun, 2574° / 50°0
Morning51°feels 50°
Afternoon74°feels 73°
Evening61°feels 60°
Overnight52°feels 51°
74 °
Blair, Sunday, 25 October
Partly cloudy. High 74°, low 50°.
Pressure30.42 inHg
Wind2.8 mph S
Humidity54%
Visibility6.2 mi
Dew point53°
Mon, 2672° / 52°0
Morning55°feels 54°
Afternoon71°feels 70°
Evening62°feels 61°
Overnight55°feels 54°
72 °
Blair, Monday, 26 October
Overcast. High 72°, low 52°.
Pressure30.36 inHg
Wind3.4 mph S
Humidity55%
Visibility6.2 mi
Dew point51°
Tue, 2771° / 52°0
Morning57°feels 56°
Afternoon69°feels 68°
Evening62°feels 61°
Overnight57°feels 56°
71 °
Blair, Tuesday, 27 October
Overcast. High 71°, low 52°.
Pressure30.27 inHg
Wind4.6 mph SE
Humidity49%
Visibility—
Dew point48°
Wed, 2875° / 53°0
Morning58°feels 58°
Afternoon71°feels 70°
Evening63°feels 61°
Overnight59°feels 58°
75 °
Blair, Wednesday, 28 October
Clear. High 75°, low 53°.
Pressure30.15 inHg
Wind9.1 mph W
Humidity38%
Visibility—
Dew point43°
Thu, 2968° / 50°0
Morning64°feels 63°
Afternoon66°feels 65°
Evening53°feels 51°
Overnight53°feels 51°
68 °
Blair, Thursday, 29 October
Overcast. High 68°, low 50°.
Pressure30.15 inHg
Wind12.9 mph NW
Humidity63%
Visibility—
Dew point54°
Fri, 3060° / 44°0
Morning47°feels 44°
Afternoon56°feels 53°
Evening55°feels 51°
Overnight54°feels 51°
60 °
Blair, Friday, 30 October
Overcast. High 60°, low 44°.
Pressure30.24 inHg
Wind7.4 mph N
Humidity34%
Visibility—
Dew point27°
Sat, 3156° / 51°0.31
Morning52°feels 51°
Afternoon56°feels 55°
Evening56°feels 56°
Overnight55°feels 55°
56 °
Blair, Saturday, 31 October
Light rain. High 56°, low 51°.
Pressure30.06 inHg
Wind9.7 mph SE
Humidity88%
Visibility—
Dew point52°
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 Blair, 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.