10-day forecast for Saint John, ME: 44° to 84°, with precipitation expected on 7 days. The table below breaks each day into morning, afternoon, evening and overnight.
84°
Best day: Saturday, August 8
58° · 0.29 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0978° / 62°0.43
Morning71°feels 72°
Afternoon77°feels 78°
Evening68°feels 69°
Overnight69°feels 70°
78 °
Saint John, Sunday, 9 August
Rain. High 78°, low 62°.
Pressure29.80 inHg
Wind8 mph W
Humidity90%
Visibility6.1 mi
Dew point71°
Mon, 1074° / 58°0.01
Morning63°feels 63°
Afternoon70°feels 69°
Evening63°feels 63°
Overnight59°feels 59°
74 °
Saint John, Monday, 10 August
Light rain. High 74°, low 58°.
Pressure29.91 inHg
Wind11.1 mph W
Humidity53%
Visibility6.2 mi
Dew point55°
Tue, 1169° / 56°0.24
Morning62°feels 62°
Afternoon67°feels 68°
Evening60°feels 61°
Overnight60°feels 60°
69 °
Saint John, Tuesday, 11 August
Light rain. High 69°, low 56°.
Pressure29.68 inHg
Wind3.4 mph W
Humidity85%
Visibility6.2 mi
Dew point62°
Wed, 1273° / 53°0.06
Morning60°feels 60°
Afternoon73°feels 73°
Evening64°feels 64°
Overnight54°feels 54°
73 °
Saint John, Wednesday, 12 August
Light rain. High 73°, low 53°.
Pressure29.71 inHg
Wind3.7 mph W
Humidity73%
Visibility6.2 mi
Dew point58°
Thu, 1364° / 50°0.23
Morning59°feels 58°
Afternoon62°feels 63°
Evening60°feels 60°
Overnight51°feels 51°
64 °
Saint John, Thursday, 13 August
Light rain. High 64°, low 50°.
Pressure29.59 inHg
Wind8.3 mph W
Humidity86%
Visibility—
Dew point58°
Fri, 1458° / 46°0.29
Morning49°feels 48°
Afternoon57°feels 56°
Evening51°feels 51°
Overnight48°feels 47°
58 °
Saint John, Friday, 14 August
Rain. High 58°, low 46°.
Pressure29.74 inHg
Wind10.4 mph W
Humidity71%
Visibility—
Dew point47°
Sat, 1566° / 44°0.08
Morning51°feels 49°
Afternoon65°feels 64°
Evening60°feels 60°
Overnight50°feels 49°
66 °
Saint John, Saturday, 15 August
Light rain. High 66°, low 44°.
Pressure29.85 inHg
Wind11.8 mph NW
Humidity54%
Visibility—
Dew point46°
Sun, 1671° / 47°0
Morning53°feels 51°
Afternoon67°feels 65°
Evening67°feels 65°
Overnight51°feels 49°
71 °
Saint John, Sunday, 16 August
Mostly clear. High 71°, low 47°.
Pressure30.12 inHg
Wind7.4 mph N
Humidity54%
Visibility—
Dew point46°
Mon, 1775° / 51°0
Morning57°feels 55°
Afternoon73°feels 71°
Evening72°feels 71°
Overnight60°feels 58°
75 °
Saint John, Monday, 17 August
Overcast. High 75°, low 51°.
Pressure30.09 inHg
Wind8.5 mph SW
Humidity41%
Visibility—
Dew point45°
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 Saint John, ME 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.