10-day forecast for St. Helen, MI: 47° to 84°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
82°
Best day: Tuesday, August 18
84° · 0.2 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1084° / 64°0.2
Morning67°feels 68°
Afternoon82°feels 81°
Evening74°feels 74°
Overnight67°feels 68°
84 °
St. Helen, Monday, 10 August
Rain. High 84°, low 64°.
Pressure29.85 inHg
Wind8.4 mph NW
Humidity55%
Visibility6.2 mi
Dew point61°
Tue, 1174° / 60°0
Morning62°feels 62°
Afternoon74°feels 74°
Evening68°feels 68°
Overnight61°feels 60°
74 °
St. Helen, Tuesday, 11 August
Overcast. High 74°, low 60°.
Pressure29.91 inHg
Wind4.9 mph S
Humidity59%
Visibility6.2 mi
Dew point57°
Wed, 1281° / 59°0
Morning61°feels 61°
Afternoon81°feels 80°
Evening70°feels 69°
Overnight60°feels 60°
81 °
St. Helen, Wednesday, 12 August
Mostly clear. High 81°, low 59°.
Pressure29.77 inHg
Wind7.2 mph NW
Humidity47%
Visibility6.2 mi
Dew point56°
Thu, 1366° / 52°0
Morning57°feels 56°
Afternoon66°feels 64°
Evening61°feels 59°
Overnight57°feels 56°
66 °
St. Helen, Thursday, 13 August
Mostly clear. High 66°, low 52°.
Pressure30.00 inHg
Wind9.7 mph NW
Humidity44%
Visibility—
Dew point42°
Fri, 1475° / 47°0
Morning56°feels 55°
Afternoon70°feels 69°
Evening63°feels 62°
Overnight52°feels 51°
75 °
St. Helen, Friday, 14 August
Clear. High 75°, low 47°.
Pressure30.15 inHg
Wind7.4 mph N
Humidity36%
Visibility—
Dew point40°
Sat, 1576° / 49°0
Morning59°feels 58°
Afternoon72°feels 70°
Evening64°feels 63°
Overnight57°feels 56°
76 °
St. Helen, Saturday, 15 August
Overcast. High 76°, low 49°.
Pressure30.30 inHg
Wind4.4 mph SE
Humidity36%
Visibility—
Dew point42°
Sun, 1666° / 54°0.05
Morning58°feels 57°
Afternoon66°feels 65°
Evening63°feels 63°
Overnight60°feels 60°
66 °
St. Helen, Sunday, 16 August
Light rain. High 66°, low 54°.
Pressure30.12 inHg
Wind4.9 mph NW
Humidity68%
Visibility—
Dew point54°
Mon, 1778° / 59°0
Morning65°feels 65°
Afternoon76°feels 76°
Evening67°feels 66°
Overnight59°feels 59°
78 °
St. Helen, Monday, 17 August
Overcast. High 78°, low 59°.
Pressure30.03 inHg
Wind7.6 mph NW
Humidity39%
Visibility—
Dew point49°
Tue, 1882° / 55°0
Morning65°feels 64°
Afternoon78°feels 78°
Evening71°feels 70°
Overnight63°feels 63°
82 °
St. Helen, Tuesday, 18 August
Mostly clear. High 82°, low 55°.
Pressure30.03 inHg
Wind6.6 mph SE
Humidity36%
Visibility—
Dew point48°
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 St. Helen, MI 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.