10-day forecast for Sullivan, NH: 47° to 85°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
85°
Best day: Sunday, August 9
69° · 0.48 in
Worst day: Tuesday, August 18
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1084° / 63°0.05
Morning70°feels 70°
Afternoon82°feels 81°
Evening69°feels 69°
Overnight65°feels 66°
84 °
Sullivan, Monday, 10 August
Light rain. High 84°, low 63°.
Pressure29.94 inHg
Wind8.7 mph SW
Humidity42%
Visibility6.2 mi
Dew point55°
Tue, 1181° / 61°0
Morning66°feels 67°
Afternoon81°feels 80°
Evening67°feels 67°
Overnight63°feels 63°
81 °
Sullivan, Tuesday, 11 August
Overcast. High 81°, low 61°.
Pressure29.80 inHg
Wind13.5 mph NW
Humidity43%
Visibility6.2 mi
Dew point54°
Wed, 1272° / 58°0.28
Morning59°feels 59°
Afternoon70°feels 70°
Evening63°feels 63°
Overnight63°feels 62°
72 °
Sullivan, Wednesday, 12 August
Rain. High 72°, low 58°.
Pressure29.77 inHg
Wind2.2 mph NE
Humidity96%
Visibility6.2 mi
Dew point61°
Thu, 1376° / 54°0.06
Morning62°feels 62°
Afternoon74°feels 73°
Evening68°feels 67°
Overnight54°feels 54°
76 °
Sullivan, Thursday, 13 August
Light rain. High 76°, low 54°.
Pressure29.68 inHg
Wind11.5 mph W
Humidity44%
Visibility—
Dew point49°
Fri, 1470° / 47°0
Morning52°feels 52°
Afternoon66°feels 64°
Evening68°feels 66°
Overnight56°feels 55°
70 °
Sullivan, Friday, 14 August
Clear. High 70°, low 47°.
Pressure29.94 inHg
Wind12.9 mph NW
Humidity41%
Visibility—
Dew point38°
Sat, 1573° / 48°0
Morning53°feels 53°
Afternoon68°feels 67°
Evening67°feels 65°
Overnight51°feels 50°
73 °
Sullivan, Saturday, 15 August
Clear. High 73°, low 48°.
Pressure30.03 inHg
Wind13.1 mph NW
Humidity49%
Visibility—
Dew point45°
Sun, 1674° / 48°0
Morning54°feels 53°
Afternoon70°feels 69°
Evening71°feels 69°
Overnight53°feels 52°
74 °
Sullivan, Sunday, 16 August
Clear. High 74°, low 48°.
Pressure30.18 inHg
Wind7.3 mph N
Humidity38%
Visibility—
Dew point40°
Mon, 1777° / 50°0
Morning56°feels 55°
Afternoon71°feels 70°
Evening75°feels 74°
Overnight62°feels 61°
77 °
Sullivan, Monday, 17 August
Overcast. High 77°, low 50°.
Pressure30.15 inHg
Wind8.7 mph SW
Humidity46%
Visibility—
Dew point46°
Tue, 1869° / 60°0.48
Morning60°feels 61°
Afternoon62°feels 63°
Evening67°feels 68°
Overnight60°feels 60°
69 °
Sullivan, Tuesday, 18 August
Rain. High 69°, low 60°.
Pressure30.12 inHg
Wind8 mph SW
Humidity99%
Visibility—
Dew point61°
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 Sullivan, NH 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.