Cottonwood Creek Water Temperature Forecast

Monument, Oregon — MSWCD Gage Station
Forecast: Friday, February 27, 2026 Temp: Feb 24 – Mar 06, 2026 Flow: Feb 20 – Mar 03 (obs + predicted)
Water temperatures are below alert thresholds (23.0°C / 73.4°F).

7-Day Water Temperature Forecast — Cottonwood Creek

🧊 0-2°C Frigid ❄ 3-6°C Cold 💧 7-10°C Cool ✅ 11-17°C Optimal ☀ 18-22°C Warm 🌡 23-26°C Alert! ⚠ 27°C+ Critical
Today
Feb 27
❄ Cold
MOUTH
3.7°C
39°F
UPSTREAM
1.6°C
35°F
Sat
Feb 28
❄ Cold
MOUTH
4.1°C
39°F
UPSTREAM
2.4°C
36°F
Sun
Mar 01
❄ Cold
MOUTH
6.1°C
43°F
UPSTREAM
4.7°C
40°F
Mon
Mar 02
❄ Cold
MOUTH
6.1°C
43°F
UPSTREAM
4.6°C
40°F
Tue
Mar 03
❄ Cold
MOUTH
6.4°C
44°F
UPSTREAM
4.8°C
41°F
Wed
Mar 04
❄ Cold
MOUTH
6.3°C
43°F
UPSTREAM
4.8°C
41°F
Thu
Mar 05
❄ Cold
MOUTH
5.9°C
43°F
UPSTREAM
4.2°C
40°F

Water Temperature — 3-Day Observed + 7-Day Forecast

Observed
Predicted Mouth
Predicted Upstream
Alert 23.0°C
🧊 0-2°C Frigid
❄ 3-6°C Cold
💧 7-10°C Cool
✅ 11-17°C Optimal
☀ 18-22°C Warm
🌡 23-26°C Alert
⚠ 27°C+ Critical

Discharge (cfs) & Gage Height (ft) — 7-Day Observed + 4-Day Predicted

Observed Flow
Predicted Flow
Predicted flow uses the trained Random Forest model driven by weather forecast and SNOTEL data from Starr Ridge.

7-Day Weather Forecast — Monument, OR

Today
Feb 27
🌥
Cool
39°F4°C
RH 38% · DP 16°F
Sat
Feb 28
🌥
Cool
42°F6°C
RH 56% · DP 27°F
Sun
Mar 01
Cloudy
45°F7°C
RH 71% · DP 35°F
Mon
Mar 02
Cloudy
44°F7°C
RH 68% · DP 33°F
Tue
Mar 03
🌥
Cool
45°F7°C
RH 62% · DP 32°F
Wed
Mar 04
Cloudy
43°F6°C
RH 75% · DP 36°F
Thu
Mar 05
Cloudy
41°F5°C
RH 70% · DP 31°F

Daily Detail (°F with °C below)

DateSrcObs WaterPred MouthPred Upstream Flow (cfs)Gage (ft)Air (°F)RH (%)
Tue Feb 24 Obs 45.07.2°C 42.25.7°C 41.05.0°C 15.9 3.241 36.7 95
Wed Feb 25 Obs 44.26.8°C 42.86.0°C 40.24.5°C 49.3 3.653 39.6 64
Thu Feb 26 Obs 38.93.8°C 42.45.8°C 39.24.0°C 51.4 3.672 42.1 37
Today Obs 37.53.1°C 38.73.7°C 34.81.6°C 39.8 3.558 39.3 38
Sat Feb 28 Fcst -- 39.44.1°C 36.32.4°C 35.8 Pred 3.514 Pred 42.0 56
Sun Mar 01 Fcst -- 42.96.1°C 40.54.7°C 35.9 Pred 3.515 Pred 44.5 71
Mon Mar 02 Fcst -- 42.96.1°C 40.24.6°C 36.5 Pred 3.521 Pred 43.9 68
Tue Mar 03 Fcst -- 43.56.4°C 40.64.8°C 36.6 Pred 3.522 Pred 45.2 62
Wed Mar 04 Fcst -- 43.46.3°C 40.74.8°C 37.0 Pred 3.527 Pred 43.2 75
Thu Mar 05 Fcst -- 42.65.9°C 39.54.2°C 36.7 Pred 3.524 Pred 41.0 70
Fri Mar 06 Fcst -- 42.55.8°C 39.54.2°C 37.4 Pred 3.531 Pred 40.6 71
Cottonwood Creek Water Temperature Prediction System • Generated 2026-02-27
Models: RF flow (Starr Ridge SNOTEL + Monument Wx) → Ridge water temperature