Monthly outlook for North Merritt Island, FL: average high 95.2°, average low 77.6°. That is 5.5° above the climate normal for August. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 12 days and 2.8 inches. The warmest day looks like 22 August (99.2°), the coolest 21 August (76.1°).
95.2°/77.6°
Average high / low
+5.5°
Above normal
3 / 12
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
95.5°
85.4°
+5.6°
19 August – 28 August
94.6°
84.9°
+5.4°
29 August – 7 September
at normal
84.3°
—
August records over 66 years
94.3°19 August 2024All-time high
71.4°28 August 1997All-time low
Climate normals and records are computed from the nearest reference point — Cape Canaveral (8 mi).
Mon, 1089° / 78°0
89 °
North Merritt Island, Monday, 10 August
Overcast. High 89°, low 78°.
Pressure30.15 inHg
Wind6.2 mph S
Humidity55%
Visibility6.2 mi
Dew point72°
Tue, 1197° / 79°0.02
97 °
North Merritt Island, Tuesday, 11 August
Light rain. High 97°, low 79°.
Pressure30.12 inHg
Wind3.5 mph S
Humidity49%
Visibility6.2 mi
Dew point71°
Wed, 1298° / 77°0
98 °
North Merritt Island, Wednesday, 12 August
Clear. High 98°, low 77°.
Pressure30.03 inHg
Wind4.1 mph W
Humidity41%
Visibility6.2 mi
Dew point68°
Thu, 1398° / 79°0.06
98 °
North Merritt Island, Thursday, 13 August
Light rain. High 98°, low 79°.
Pressure30.06 inHg
Wind5.8 mph SW
Humidity39%
Visibility6.2 mi
Dew point66°
Fri, 1495° / 77°0.05
95 °
North Merritt Island, Friday, 14 August
Light rain. High 95°, low 77°.
Pressure30.12 inHg
Wind8.9 mph SE
Humidity45%
Visibility—
Dew point69°
Sat, 1594° / 77°0.01
94 °
North Merritt Island, Saturday, 15 August
Light rain. High 94°, low 77°.
Pressure30.18 inHg
Wind9.7 mph SE
Humidity46%
Visibility—
Dew point68°
Sun, 1697° / 77°0
97 °
North Merritt Island, Sunday, 16 August
Overcast. High 97°, low 77°.
Pressure30.12 inHg
Wind9.6 mph SE
Humidity42%
Visibility—
Dew point68°
Mon, 1799° / 78°0.03
99 °
North Merritt Island, Monday, 17 August
Light rain. High 99°, low 78°.
Pressure30.03 inHg
Wind6.4 mph E
Humidity39%
Visibility—
Dew point67°
Tue, 1897° / 79°0
97 °
North Merritt Island, Tuesday, 18 August
Partly cloudy. High 97°, low 79°.
Pressure29.97 inHg
Wind9.8 mph E
Humidity44%
Visibility—
Dew point69°
Wed, 1991° / 78°0
91 °
North Merritt Island, Wednesday, 19 August
Partly cloudy. High 91°, low 78°.
Pressure30.03 inHg
Wind9.5 mph E
Humidity54%
Visibility—
Dew point71°
Thu, 2091° / 78°0.01
91 °
North Merritt Island, Thursday, 20 August
Light rain. High 91°, low 78°.
Pressure30.00 inHg
Wind10.4 mph SE
Humidity57%
Visibility—
Dew point71°
Fri, 2197° / 76°0.18
97 °
North Merritt Island, Friday, 21 August
Light rain. High 97°, low 76°.
Pressure30.00 inHg
Wind9.3 mph SW
Humidity40%
Visibility—
Dew point66°
Sat, 2299° / 77°0.01
99 °
North Merritt Island, Saturday, 22 August
Light rain. High 99°, low 77°.
Pressure30.00 inHg
Wind11.1 mph W
Humidity40%
Visibility—
Dew point67°
Sun, 2397° / 77°0.03
97 °
North Merritt Island, Sunday, 23 August
Light rain. High 97°, low 77°.
Pressure30.09 inHg
Wind8.8 mph E
Humidity33%
Visibility—
Dew point61°
Mon, 2492° / 78°0.02
92 °
North Merritt Island, Monday, 24 August
Light rain. High 92°, low 78°.
Pressure30.15 inHg
Wind10.2 mph E
Humidity50%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2585° / 77°0.19
85 °
North Merritt Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.19 in
Chance of precipitation67%
Record high90° (2023)
Record low74° (2018)
Wed, 2685° / 77°0.15
85 °
North Merritt Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.15 in
Chance of precipitation72%
Record high90° (1998)
Record low73° (1980)
Thu, 2785° / 77°0.15
85 °
North Merritt Island, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.15 in
Chance of precipitation60%
Record high90° (2011)
Record low73° (2025)
Fri, 2885° / 77°0.15
85 °
North Merritt Island, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.15 in
Chance of precipitation63%
Record high90° (2011)
Record low71° (1997)
Sat, 2985° / 77°0.17
85 °
North Merritt Island, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.17 in
Chance of precipitation70%
Record high91° (2023)
Record low72° (1984)
Sun, 3085° / 77°0.21
85 °
North Merritt Island, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.21 in
Chance of precipitation67%
Record high90° (2025)
Record low72° (1994)
Mon, 3185° / 77°0.17
85 °
North Merritt Island, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.17 in
Chance of precipitation70%
Record high90° (1998)
Record low73° (2025)
Tue, 0184° / 77°0.2
84 °
North Merritt Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.2 in
Chance of precipitation65%
Record high90° (1998)
Record low73° (1970)
Wed, 0284° / 77°0.19
84 °
North Merritt Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.19 in
Chance of precipitation63%
Record high87° (2020)
Record low73° (1999)
Thu, 0384° / 77°0.21
84 °
North Merritt Island, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.21 in
Chance of precipitation65%
Record high89° (1999)
Record low71° (1999)
Fri, 0484° / 77°0.2
84 °
North Merritt Island, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.2 in
Chance of precipitation67%
Record high89° (2020)
Record low72° (1967)
Sat, 0584° / 77°0.3
84 °
North Merritt Island, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.3 in
Chance of precipitation78%
Record high92° (2019)
Record low71° (2023)
Sun, 0684° / 77°0.19
84 °
North Merritt Island, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.19 in
Chance of precipitation73%
Record high90° (2019)
Record low72° (2023)
Mon, 0784° / 76°0.22
84 °
North Merritt Island, Monday, 7 September
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.22 in
Chance of precipitation73%
Record high92° (2023)
Record low73° (2023)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for North Merritt Island, FL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in North Merritt Island, FL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.